./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/openssl/s3_srvr.blast.13.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_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/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_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.13.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/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_073b9a15-a3cd-4274-b03e-2272a6bc874c/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 e951bfa557af694cc1e8699e574c7b4724d1be498cab6731e1080e9fedb61dc3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:34:38,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:34:38,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:34:38,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:34:38,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:34:38,317 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:34:38,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:34:38,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:34:38,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:34:38,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:34:38,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:34:38,328 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:34:38,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:34:38,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:34:38,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:34:38,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:34:38,335 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:34:38,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:34:38,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:34:38,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:34:38,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:34:38,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:34:38,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:34:38,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:34:38,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:34:38,360 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:34:38,360 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:34:38,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:34:38,362 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:34:38,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:34:38,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:34:38,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:34:38,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:34:38,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:34:38,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:34:38,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:34:38,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:34:38,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:34:38,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:34:38,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:34:38,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:34:38,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:34:38,412 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:34:38,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:34:38,413 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:34:38,414 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:34:38,414 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:34:38,414 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:34:38,414 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:34:38,415 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:34:38,415 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:34:38,415 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:34:38,415 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:34:38,416 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:34:38,416 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:34:38,416 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:34:38,416 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:34:38,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:34:38,417 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:34:38,417 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:34:38,418 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:34:38,418 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:34:38,418 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:34:38,418 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:34:38,419 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:34:38,419 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:34:38,419 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:34:38,419 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:34:38,419 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:34:38,420 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:34:38,420 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:34:38,420 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:34:38,420 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:34:38,421 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:34:38,421 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:34:38,421 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:34:38,421 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:34:38,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:34:38,422 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:34:38,422 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:34:38,422 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:34:38,422 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_073b9a15-a3cd-4274-b03e-2272a6bc874c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e951bfa557af694cc1e8699e574c7b4724d1be498cab6731e1080e9fedb61dc3 [2021-11-03 04:34:38,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:34:38,804 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:34:38,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:34:38,811 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:34:38,812 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:34:38,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/openssl/s3_srvr.blast.13.i.cil-2.c [2021-11-03 04:34:38,893 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/data/d68489215/683ce4806c564d3facc2974456a6a026/FLAG983c506fb [2021-11-03 04:34:39,577 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:34:39,577 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/sv-benchmarks/c/openssl/s3_srvr.blast.13.i.cil-2.c [2021-11-03 04:34:39,631 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/data/d68489215/683ce4806c564d3facc2974456a6a026/FLAG983c506fb [2021-11-03 04:34:39,792 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/data/d68489215/683ce4806c564d3facc2974456a6a026 [2021-11-03 04:34:39,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:34:39,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:34:39,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:34:39,801 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:34:39,804 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:34:39,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:34:39" (1/1) ... [2021-11-03 04:34:39,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5810ef3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:39, skipping insertion in model container [2021-11-03 04:34:39,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:34:39" (1/1) ... [2021-11-03 04:34:39,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:34:39,945 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:34:40,451 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_073b9a15-a3cd-4274-b03e-2272a6bc874c/sv-benchmarks/c/openssl/s3_srvr.blast.13.i.cil-2.c[74353,74366] [2021-11-03 04:34:40,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:34:40,487 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 04:34:40,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6784d2ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:40, skipping insertion in model container [2021-11-03 04:34:40,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:34:40,489 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2021-11-03 04:34:40,492 INFO L168 Benchmark]: Toolchain (without parser) took 693.00 ms. Allocated memory is still 121.6 MB. Free memory was 78.2 MB in the beginning and 86.3 MB in the end (delta: -8.1 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-11-03 04:34:40,492 INFO L168 Benchmark]: CDTParser took 1.17 ms. Allocated memory is still 121.6 MB. Free memory is still 96.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:34:40,494 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.76 ms. Allocated memory is still 121.6 MB. Free memory was 78.0 MB in the beginning and 86.3 MB in the end (delta: -8.3 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-11-03 04:34:40,496 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.17 ms. Allocated memory is still 121.6 MB. Free memory is still 96.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 688.76 ms. Allocated memory is still 121.6 MB. Free memory was 78.0 MB in the beginning and 86.3 MB in the end (delta: -8.3 MB). Peak memory consumption was 15.0 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_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/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_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/openssl/s3_srvr.blast.13.i.cil-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/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_073b9a15-a3cd-4274-b03e-2272a6bc874c/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 e951bfa557af694cc1e8699e574c7b4724d1be498cab6731e1080e9fedb61dc3 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:34:43,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:34:43,183 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:34:43,247 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:34:43,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:34:43,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:34:43,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:34:43,261 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:34:43,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:34:43,274 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:34:43,276 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:34:43,278 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:34:43,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:34:43,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:34:43,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:34:43,290 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:34:43,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:34:43,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:34:43,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:34:43,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:34:43,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:34:43,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:34:43,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:34:43,321 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:34:43,332 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:34:43,333 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:34:43,333 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:34:43,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:34:43,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:34:43,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:34:43,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:34:43,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:34:43,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:34:43,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:34:43,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:34:43,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:34:43,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:34:43,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:34:43,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:34:43,350 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:34:43,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:34:43,352 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 04:34:43,405 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:34:43,406 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:34:43,407 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:34:43,408 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:34:43,408 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:34:43,408 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:34:43,408 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:34:43,409 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:34:43,409 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:34:43,411 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:34:43,412 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:34:43,412 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:34:43,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:34:43,413 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:34:43,413 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:34:43,413 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:34:43,414 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:34:43,414 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:34:43,414 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:34:43,414 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:34:43,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:34:43,415 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:34:43,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:34:43,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:34:43,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:34:43,416 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:34:43,416 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:34:43,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:34:43,417 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:34:43,417 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:34:43,418 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:34:43,418 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:34:43,418 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:34:43,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:34:43,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:34:43,420 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_073b9a15-a3cd-4274-b03e-2272a6bc874c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e951bfa557af694cc1e8699e574c7b4724d1be498cab6731e1080e9fedb61dc3 [2021-11-03 04:34:43,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:34:43,902 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:34:43,905 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:34:43,906 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:34:43,907 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:34:43,908 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/openssl/s3_srvr.blast.13.i.cil-2.c [2021-11-03 04:34:43,988 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/data/c0fd75d9d/8e96ffded55147379dade179ba5228ec/FLAG0e8c413d8 [2021-11-03 04:34:44,811 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:34:44,812 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/sv-benchmarks/c/openssl/s3_srvr.blast.13.i.cil-2.c [2021-11-03 04:34:44,846 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/data/c0fd75d9d/8e96ffded55147379dade179ba5228ec/FLAG0e8c413d8 [2021-11-03 04:34:44,926 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/data/c0fd75d9d/8e96ffded55147379dade179ba5228ec [2021-11-03 04:34:44,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:34:44,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:34:44,942 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:34:44,942 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:34:44,946 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:34:44,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:34:44" (1/1) ... [2021-11-03 04:34:44,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56ae5650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:44, skipping insertion in model container [2021-11-03 04:34:44,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:34:44" (1/1) ... [2021-11-03 04:34:44,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:34:45,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:34:45,715 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_073b9a15-a3cd-4274-b03e-2272a6bc874c/sv-benchmarks/c/openssl/s3_srvr.blast.13.i.cil-2.c[74353,74366] [2021-11-03 04:34:45,735 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:34:45,769 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-11-03 04:34:45,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:34:45,958 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_073b9a15-a3cd-4274-b03e-2272a6bc874c/sv-benchmarks/c/openssl/s3_srvr.blast.13.i.cil-2.c[74353,74366] [2021-11-03 04:34:45,961 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:34:45,981 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:34:46,158 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_073b9a15-a3cd-4274-b03e-2272a6bc874c/sv-benchmarks/c/openssl/s3_srvr.blast.13.i.cil-2.c[74353,74366] [2021-11-03 04:34:46,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:34:46,192 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:34:46,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:46 WrapperNode [2021-11-03 04:34:46,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:34:46,195 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:34:46,195 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:34:46,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:34:46,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:46" (1/1) ... [2021-11-03 04:34:46,251 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:46" (1/1) ... [2021-11-03 04:34:46,331 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:34:46,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:34:46,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:34:46,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:34:46,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:46" (1/1) ... [2021-11-03 04:34:46,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:46" (1/1) ... [2021-11-03 04:34:46,370 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:46" (1/1) ... [2021-11-03 04:34:46,370 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:46" (1/1) ... [2021-11-03 04:34:46,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:46" (1/1) ... [2021-11-03 04:34:46,483 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:46" (1/1) ... [2021-11-03 04:34:46,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:46" (1/1) ... [2021-11-03 04:34:46,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:34:46,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:34:46,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:34:46,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:34:46,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:46" (1/1) ... [2021-11-03 04:34:46,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:34:46,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:34:46,534 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:34:46,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:34:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:34:46,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 04:34:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:34:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:34:46,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 04:34:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 04:34:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:34:46,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:34:46,615 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:34:46,828 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-11-03 04:34:56,812 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-11-03 04:34:56,813 INFO L758 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-11-03 04:34:56,823 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:34:56,823 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-11-03 04:34:56,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:34:56 BoogieIcfgContainer [2021-11-03 04:34:56,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:34:56,828 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:34:56,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:34:56,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:34:56,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:34:44" (1/3) ... [2021-11-03 04:34:56,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436214f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:34:56, skipping insertion in model container [2021-11-03 04:34:56,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:34:46" (2/3) ... [2021-11-03 04:34:56,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@436214f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:34:56, skipping insertion in model container [2021-11-03 04:34:56,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:34:56" (3/3) ... [2021-11-03 04:34:56,836 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.13.i.cil-2.c [2021-11-03 04:34:56,842 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:34:56,842 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-03 04:34:56,897 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:34:56,904 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 04:34:56,905 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-03 04:34:56,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 150 states, 148 states have (on average 1.7162162162162162) internal successors, (254), 149 states have internal predecessors, (254), 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 04:34:56,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-03 04:34:56,936 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:56,937 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:34:56,938 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:34:56,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:56,944 INFO L85 PathProgramCache]: Analyzing trace with hash -442385417, now seen corresponding path program 1 times [2021-11-03 04:34:56,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:56,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979205512] [2021-11-03 04:34:56,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:56,963 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:56,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:56,967 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:56,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:34:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:57,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:34:57,368 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:57,669 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 04:34:57,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:57,907 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 04:34:57,908 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:57,909 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979205512] [2021-11-03 04:34:57,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979205512] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:57,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:57,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:34:57,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380553361] [2021-11-03 04:34:57,918 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:34:57,918 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:57,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:34:57,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:34:57,936 INFO L87 Difference]: Start difference. First operand has 150 states, 148 states have (on average 1.7162162162162162) internal successors, (254), 149 states have internal predecessors, (254), 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 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 04:34:58,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:34:58,198 INFO L93 Difference]: Finished difference Result 566 states and 965 transitions. [2021-11-03 04:34:58,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:34:58,201 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 37 [2021-11-03 04:34:58,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:34:58,220 INFO L225 Difference]: With dead ends: 566 [2021-11-03 04:34:58,221 INFO L226 Difference]: Without dead ends: 387 [2021-11-03 04:34:58,225 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 70 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 04:34:58,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-11-03 04:34:58,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 385. [2021-11-03 04:34:58,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.5286458333333333) internal successors, (587), 384 states have internal predecessors, (587), 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 04:34:58,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 587 transitions. [2021-11-03 04:34:58,342 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 587 transitions. Word has length 37 [2021-11-03 04:34:58,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:34:58,343 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 587 transitions. [2021-11-03 04:34:58,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 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 04:34:58,344 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 587 transitions. [2021-11-03 04:34:58,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-03 04:34:58,354 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:34:58,355 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:34:58,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:34:58,570 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:34:58,570 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:34:58,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:34:58,571 INFO L85 PathProgramCache]: Analyzing trace with hash 457194935, now seen corresponding path program 1 times [2021-11-03 04:34:58,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:34:58,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [944083591] [2021-11-03 04:34:58,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:34:58,573 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:34:58,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:34:58,575 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:34:58,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:34:58,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:34:58,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:34:58,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:34:59,257 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:59,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:34:59,541 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:34:59,541 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:34:59,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [944083591] [2021-11-03 04:34:59,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [944083591] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:34:59,542 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:34:59,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:34:59,543 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025751999] [2021-11-03 04:34:59,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:34:59,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:34:59,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:34:59,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:34:59,546 INFO L87 Difference]: Start difference. First operand 385 states and 587 transitions. Second operand has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 04:35:00,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:35:00,327 INFO L93 Difference]: Finished difference Result 880 states and 1354 transitions. [2021-11-03 04:35:00,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:35:00,329 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 [2021-11-03 04:35:00,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:35:00,333 INFO L225 Difference]: With dead ends: 880 [2021-11-03 04:35:00,333 INFO L226 Difference]: Without dead ends: 629 [2021-11-03 04:35:00,336 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 [2021-11-03 04:35:00,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2021-11-03 04:35:00,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 627. [2021-11-03 04:35:00,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 626 states have (on average 1.5191693290734825) internal successors, (951), 626 states have internal predecessors, (951), 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 04:35:00,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 951 transitions. [2021-11-03 04:35:00,391 INFO L78 Accepts]: Start accepts. Automaton has 627 states and 951 transitions. Word has length 60 [2021-11-03 04:35:00,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:35:00,392 INFO L470 AbstractCegarLoop]: Abstraction has 627 states and 951 transitions. [2021-11-03 04:35:00,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.5) internal successors, (98), 4 states have internal predecessors, (98), 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 04:35:00,393 INFO L276 IsEmpty]: Start isEmpty. Operand 627 states and 951 transitions. [2021-11-03 04:35:00,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2021-11-03 04:35:00,400 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:35:00,401 INFO L513 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:35:00,427 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:35:00,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:35:00,628 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:35:00,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:35:00,630 INFO L85 PathProgramCache]: Analyzing trace with hash 335691035, now seen corresponding path program 1 times [2021-11-03 04:35:00,632 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:35:00,632 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914691183] [2021-11-03 04:35:00,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:35:00,633 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:35:00,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:35:00,634 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:35:00,673 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:35:01,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:35:01,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:35:01,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:35:01,549 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-03 04:35:01,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:35:02,004 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-11-03 04:35:02,004 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:35:02,004 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914691183] [2021-11-03 04:35:02,004 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914691183] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:35:02,005 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:35:02,005 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:35:02,005 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170275146] [2021-11-03 04:35:02,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:35:02,006 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:35:02,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:35:02,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:35:02,008 INFO L87 Difference]: Start difference. First operand 627 states and 951 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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 04:35:02,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:35:02,792 INFO L93 Difference]: Finished difference Result 1366 states and 2084 transitions. [2021-11-03 04:35:02,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:35:02,793 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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 112 [2021-11-03 04:35:02,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:35:02,802 INFO L225 Difference]: With dead ends: 1366 [2021-11-03 04:35:02,803 INFO L226 Difference]: Without dead ends: 873 [2021-11-03 04:35:02,811 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 220 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 04:35:02,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2021-11-03 04:35:02,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2021-11-03 04:35:02,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 872 states have (on average 1.5160550458715596) internal successors, (1322), 872 states have internal predecessors, (1322), 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 04:35:02,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1322 transitions. [2021-11-03 04:35:02,875 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1322 transitions. Word has length 112 [2021-11-03 04:35:02,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:35:02,876 INFO L470 AbstractCegarLoop]: Abstraction has 873 states and 1322 transitions. [2021-11-03 04:35:02,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 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 04:35:02,878 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1322 transitions. [2021-11-03 04:35:02,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-11-03 04:35:02,889 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:35:02,889 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:35:02,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:35:03,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:35:03,106 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:35:03,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:35:03,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1244955076, now seen corresponding path program 1 times [2021-11-03 04:35:03,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:35:03,108 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [890611485] [2021-11-03 04:35:03,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:35:03,109 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:35:03,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:35:03,112 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:35:03,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:35:03,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:35:03,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:35:03,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:35:04,206 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-03 04:35:04,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:35:04,703 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-03 04:35:04,704 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:35:04,704 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [890611485] [2021-11-03 04:35:04,704 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [890611485] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:35:04,704 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:35:04,704 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-11-03 04:35:04,705 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1117152108] [2021-11-03 04:35:04,705 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:35:04,705 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:35:04,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:35:04,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:35:04,706 INFO L87 Difference]: Start difference. First operand 873 states and 1322 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 04:35:05,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:35:05,211 INFO L93 Difference]: Finished difference Result 1858 states and 2823 transitions. [2021-11-03 04:35:05,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:35:05,212 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 149 [2021-11-03 04:35:05,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:35:05,234 INFO L225 Difference]: With dead ends: 1858 [2021-11-03 04:35:05,235 INFO L226 Difference]: Without dead ends: 1119 [2021-11-03 04:35:05,236 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 296 GetRequests, 294 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 04:35:05,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2021-11-03 04:35:05,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1119. [2021-11-03 04:35:05,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 1118 states have (on average 1.5107334525939178) internal successors, (1689), 1118 states have internal predecessors, (1689), 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 04:35:05,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1689 transitions. [2021-11-03 04:35:05,306 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1689 transitions. Word has length 149 [2021-11-03 04:35:05,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:35:05,307 INFO L470 AbstractCegarLoop]: Abstraction has 1119 states and 1689 transitions. [2021-11-03 04:35:05,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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 04:35:05,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1689 transitions. [2021-11-03 04:35:05,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-03 04:35:05,312 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:35:05,313 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 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 04:35:05,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:35:05,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:35:05,536 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:35:05,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:35:05,537 INFO L85 PathProgramCache]: Analyzing trace with hash -490932893, now seen corresponding path program 1 times [2021-11-03 04:35:05,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:35:05,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753732537] [2021-11-03 04:35:05,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:35:05,539 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:35:05,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:35:05,540 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:35:05,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:35:06,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:35:06,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 04:35:06,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:35:06,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-03 04:35:06,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-11-03 04:35:06,793 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:35:06,799 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-03 04:35:06,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 210 [2021-11-03 04:35:07,420 INFO L354 Elim1Store]: treesize reduction 1607, result has 2.8 percent of original size [2021-11-03 04:35:07,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 8 case distinctions, treesize of input 849 treesize of output 821 [2021-11-03 04:35:07,557 INFO L354 Elim1Store]: treesize reduction 340, result has 2.6 percent of original size [2021-11-03 04:35:07,558 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 13 [2021-11-03 04:35:07,574 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:35:07,576 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 221 [2021-11-03 04:35:07,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 221 treesize of output 210 [2021-11-03 04:35:07,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 36 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 101 [2021-11-03 04:35:07,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 13 [2021-11-03 04:35:07,894 INFO L354 Elim1Store]: treesize reduction 340, result has 2.6 percent of original size [2021-11-03 04:35:07,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 4 case distinctions, treesize of input 62 treesize of output 13 [2021-11-03 04:35:07,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:07,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 10 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 13 [2021-11-03 04:35:07,977 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2021-11-03 04:35:07,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2021-11-03 04:35:08,538 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-03 04:35:08,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:35:09,234 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:35:09,237 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 181 [2021-11-03 04:35:09,243 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:35:09,246 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 238 [2021-11-03 04:35:09,425 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:35:09,438 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 393 [2021-11-03 04:35:09,448 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:35:09,452 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 510 [2021-11-03 04:35:09,465 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:35:09,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 687 [2021-11-03 04:35:09,487 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:35:09,491 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 744 [2021-11-03 04:35:09,514 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:35:09,519 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 861 [2021-11-03 04:35:09,550 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-03 04:35:09,555 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1038 [2021-11-03 04:35:10,176 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2021-11-03 04:35:10,177 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:35:10,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753732537] [2021-11-03 04:35:10,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753732537] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:35:10,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:35:10,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-03 04:35:10,179 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242460161] [2021-11-03 04:35:10,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-03 04:35:10,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:35:10,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-03 04:35:10,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:35:10,181 INFO L87 Difference]: Start difference. First operand 1119 states and 1689 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 04:35:40,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:35:40,927 INFO L93 Difference]: Finished difference Result 2235 states and 3374 transitions. [2021-11-03 04:35:40,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:35:40,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 165 [2021-11-03 04:35:40,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:35:40,938 INFO L225 Difference]: With dead ends: 2235 [2021-11-03 04:35:40,938 INFO L226 Difference]: Without dead ends: 1119 [2021-11-03 04:35:40,940 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 321 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-11-03 04:35:40,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1119 states. [2021-11-03 04:35:41,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1119 to 1119. [2021-11-03 04:35:41,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1119 states, 1118 states have (on average 1.5098389982110911) internal successors, (1688), 1118 states have internal predecessors, (1688), 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 04:35:41,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1688 transitions. [2021-11-03 04:35:41,009 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1688 transitions. Word has length 165 [2021-11-03 04:35:41,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:35:41,011 INFO L470 AbstractCegarLoop]: Abstraction has 1119 states and 1688 transitions. [2021-11-03 04:35:41,012 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 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 04:35:41,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1688 transitions. [2021-11-03 04:35:41,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-03 04:35:41,017 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:35:41,017 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 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 04:35:41,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:35:41,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:35:41,233 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:35:41,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:35:41,234 INFO L85 PathProgramCache]: Analyzing trace with hash 7623909, now seen corresponding path program 1 times [2021-11-03 04:35:41,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:35:41,235 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [452202294] [2021-11-03 04:35:41,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:35:41,236 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:35:41,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:35:41,237 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:35:41,252 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:35:42,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:35:42,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 04:35:42,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:35:42,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:42,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:42,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:42,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:42,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:35:42,670 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:35:42,761 INFO L354 Elim1Store]: treesize reduction 188, result has 13.8 percent of original size [2021-11-03 04:35:42,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 3 case distinctions, treesize of input 32 treesize of output 40 [2021-11-03 04:35:42,845 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:35:42,846 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:35:42,846 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:35:43,265 INFO L354 Elim1Store]: treesize reduction 850, result has 7.0 percent of original size [2021-11-03 04:35:43,266 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 72 treesize of output 89 [2021-11-03 04:35:44,865 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:35:44,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 110 treesize of output 38 [2021-11-03 04:35:45,257 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-11-03 04:35:45,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:35:46,052 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-11-03 04:35:46,052 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:35:46,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [452202294] [2021-11-03 04:35:46,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [452202294] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:35:46,053 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:35:46,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2021-11-03 04:35:46,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524831702] [2021-11-03 04:35:46,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:35:46,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:35:46,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:35:46,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:35:46,055 INFO L87 Difference]: Start difference. First operand 1119 states and 1688 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 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 04:36:28,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:36:28,884 INFO L93 Difference]: Finished difference Result 4222 states and 6394 transitions. [2021-11-03 04:36:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-03 04:36:28,887 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 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 165 [2021-11-03 04:36:28,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:36:28,911 INFO L225 Difference]: With dead ends: 4222 [2021-11-03 04:36:28,911 INFO L226 Difference]: Without dead ends: 3113 [2021-11-03 04:36:28,914 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 322 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-03 04:36:28,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3113 states. [2021-11-03 04:36:29,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3113 to 1343. [2021-11-03 04:36:29,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 1342 states have (on average 1.5454545454545454) internal successors, (2074), 1342 states have internal predecessors, (2074), 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 04:36:29,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 2074 transitions. [2021-11-03 04:36:29,038 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 2074 transitions. Word has length 165 [2021-11-03 04:36:29,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:36:29,038 INFO L470 AbstractCegarLoop]: Abstraction has 1343 states and 2074 transitions. [2021-11-03 04:36:29,039 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 7 states have internal predecessors, (134), 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 04:36:29,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 2074 transitions. [2021-11-03 04:36:29,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-11-03 04:36:29,044 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:36:29,044 INFO L513 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 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, 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 04:36:29,072 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:36:29,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:36:29,267 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:36:29,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:36:29,267 INFO L85 PathProgramCache]: Analyzing trace with hash -2042784989, now seen corresponding path program 1 times [2021-11-03 04:36:29,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:36:29,268 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1759507984] [2021-11-03 04:36:29,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:36:29,269 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:36:29,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:36:29,270 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:36:29,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:36:30,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:36:30,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 04:36:30,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:36:30,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:36:30,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:36:30,782 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:36:30,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:36:30,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:36:30,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:36:30,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:36:30,792 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:36:30,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:36:30,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:36:30,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:36:30,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:36:30,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:36:30,803 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:36:30,804 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:36:30,805 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:36:30,806 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:36:30,806 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:36:31,205 INFO L354 Elim1Store]: treesize reduction 1134, result has 5.3 percent of original size [2021-11-03 04:36:31,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 7 case distinctions, treesize of input 56 treesize of output 74 [2021-11-03 04:36:33,056 INFO L354 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size [2021-11-03 04:36:33,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 107 treesize of output 35 [2021-11-03 04:36:33,227 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-03 04:36:33,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:36:33,800 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 159 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-11-03 04:36:33,800 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:36:33,800 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1759507984] [2021-11-03 04:36:33,800 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1759507984] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:36:33,801 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:36:33,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 5 [2021-11-03 04:36:33,801 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541229000] [2021-11-03 04:36:33,801 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-03 04:36:33,801 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:36:33,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-03 04:36:33,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-03 04:36:33,803 INFO L87 Difference]: Start difference. First operand 1343 states and 2074 transitions. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 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 04:37:05,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:37:05,236 INFO L93 Difference]: Finished difference Result 3248 states and 5018 transitions. [2021-11-03 04:37:05,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:37:05,243 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 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 165 [2021-11-03 04:37:05,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:37:05,257 INFO L225 Difference]: With dead ends: 3248 [2021-11-03 04:37:05,257 INFO L226 Difference]: Without dead ends: 1915 [2021-11-03 04:37:05,260 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 324 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:37:05,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1915 states. [2021-11-03 04:37:05,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1915 to 1595. [2021-11-03 04:37:05,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1595 states, 1594 states have (on average 1.5777917189460477) internal successors, (2515), 1594 states have internal predecessors, (2515), 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 04:37:05,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1595 states to 1595 states and 2515 transitions. [2021-11-03 04:37:05,386 INFO L78 Accepts]: Start accepts. Automaton has 1595 states and 2515 transitions. Word has length 165 [2021-11-03 04:37:05,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:37:05,387 INFO L470 AbstractCegarLoop]: Abstraction has 1595 states and 2515 transitions. [2021-11-03 04:37:05,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 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 04:37:05,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1595 states and 2515 transitions. [2021-11-03 04:37:05,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2021-11-03 04:37:05,392 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:37:05,393 INFO L513 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:37:05,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:37:05,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:37:05,609 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-03 04:37:05,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:37:05,610 INFO L85 PathProgramCache]: Analyzing trace with hash -266035401, now seen corresponding path program 1 times [2021-11-03 04:37:05,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:37:05,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [46838628] [2021-11-03 04:37:05,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:37:05,612 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:37:05,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:37:05,613 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:37:05,619 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_073b9a15-a3cd-4274-b03e-2272a6bc874c/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:37:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:37:09,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-03 04:37:09,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:37:10,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,329 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:37:10,330 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:37:10,333 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 41 [2021-11-03 04:37:10,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 109 treesize of output 97 [2021-11-03 04:37:10,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 73 [2021-11-03 04:37:10,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:37:10,470 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:37:10,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:10,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:11,050 INFO L354 Elim1Store]: treesize reduction 935, result has 12.3 percent of original size [2021-11-03 04:37:11,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 13 case distinctions, treesize of input 73 treesize of output 157 [2021-11-03 04:37:12,103 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:37:12,104 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:37:12,105 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-03 04:37:12,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,111 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,115 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,131 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-03 04:37:12,655 INFO L354 Elim1Store]: treesize reduction 1103, result has 6.3 percent of original size [2021-11-03 04:37:12,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 28 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 32 case distinctions, treesize of input 177 treesize of output 246 [2021-11-03 04:37:59,311 INFO L354 Elim1Store]: treesize reduction 366, result has 29.8 percent of original size [2021-11-03 04:37:59,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 12 select indices, 12 select index equivalence classes, 28 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 231 treesize of output 313 [2021-11-03 04:38:01,392 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 94 proven. 2 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2021-11-03 04:38:01,393 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:38:01,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 294 treesize of output 246 [2021-11-03 04:38:01,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 246 treesize of output 150 [2021-11-03 04:38:03,952 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_arrayElimCell_58 (_ BitVec 32)) (v_arrayElimCell_57 (_ BitVec 32))) (not (= (let ((.cse0 (select (store |c_#memory_int| v_arrayElimCell_57 (store (store (store (store (select |c_#memory_int| v_arrayElimCell_57) (bvadd v_arrayElimCell_58 (_ bv844 32)) ((_ extract 7 0) (_ bv3 32))) (bvadd v_arrayElimCell_58 (_ bv845 32)) ((_ extract 15 8) (_ bv3 32))) (bvadd (_ bv846 32) v_arrayElimCell_58) ((_ extract 23 16) (_ bv3 32))) (bvadd v_arrayElimCell_58 (_ bv847 32)) ((_ extract 31 24) (_ bv3 32)))) c_ULTIMATE.start_ssl3_accept_~s.base))) (concat (concat (concat (select .cse0 (bvadd (_ bv55 32) c_ULTIMATE.start_ssl3_accept_~s.offset)) (select .cse0 (bvadd c_ULTIMATE.start_ssl3_accept_~s.offset (_ bv54 32)))) (select .cse0 (bvadd (_ bv53 32) c_ULTIMATE.start_ssl3_accept_~s.offset))) (select .cse0 (bvadd c_ULTIMATE.start_ssl3_accept_~s.offset (_ bv52 32))))) (_ bv8640 32)))) is different from false