./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label48.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label48.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl --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 5480b4d537852325e0b0acda3f8d624aa77fcd434ac8c6220530ec1f980a3ccc --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:07:53,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:07:53,266 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:07:53,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:07:53,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:07:53,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:07:53,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:07:53,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:07:53,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:07:53,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:07:53,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:07:53,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:07:53,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:07:53,326 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:07:53,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:07:53,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:07:53,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:07:53,334 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:07:53,336 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:07:53,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:07:53,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:07:53,344 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:07:53,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:07:53,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:07:53,352 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:07:53,353 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:07:53,353 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:07:53,355 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:07:53,355 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:07:53,357 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:07:53,357 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:07:53,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:07:53,360 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:07:53,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:07:53,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:07:53,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:07:53,365 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:07:53,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:07:53,366 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:07:53,367 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:07:53,368 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:07:53,369 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:07:53,399 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:07:53,399 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:07:53,400 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:07:53,400 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:07:53,401 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:07:53,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:07:53,401 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:07:53,402 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:07:53,402 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:07:53,402 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:07:53,402 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:07:53,403 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:07:53,403 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:07:53,403 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:07:53,403 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:07:53,404 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:07:53,404 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:07:53,404 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:07:53,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:07:53,405 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:07:53,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:07:53,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:07:53,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:07:53,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:07:53,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:07:53,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:07:53,407 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:07:53,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:07:53,408 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:07:53,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:07:53,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:07:53,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:07:53,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:07:53,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:07:53,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:07:53,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:07:53,410 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:07:53,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:07:53,411 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:07:53,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:07:53,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:07:53,411 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_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5480b4d537852325e0b0acda3f8d624aa77fcd434ac8c6220530ec1f980a3ccc [2021-11-23 17:07:53,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:07:53,771 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:07:53,775 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:07:53,776 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:07:53,777 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:07:53,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem07_label48.c [2021-11-23 17:07:53,854 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/data/3dd9821ec/4b58d70af3ca4639bd336df8937261e1/FLAGd278ecfbd [2021-11-23 17:07:57,380 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:07:57,381 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/sv-benchmarks/c/eca-rers2012/Problem07_label48.c [2021-11-23 17:07:57,628 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/data/3dd9821ec/4b58d70af3ca4639bd336df8937261e1/FLAGd278ecfbd [2021-11-23 17:07:57,837 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/data/3dd9821ec/4b58d70af3ca4639bd336df8937261e1 [2021-11-23 17:07:57,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:07:57,842 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:07:57,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:07:57,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:07:57,850 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:07:57,851 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:07:57" (1/1) ... [2021-11-23 17:07:57,852 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d049f37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:07:57, skipping insertion in model container [2021-11-23 17:07:57,853 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:07:57" (1/1) ... [2021-11-23 17:07:57,862 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:07:59,194 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:08:13,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/sv-benchmarks/c/eca-rers2012/Problem07_label48.c[2767282,2767295] [2021-11-23 17:08:13,121 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:13,130 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:08:21,490 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/sv-benchmarks/c/eca-rers2012/Problem07_label48.c[2767282,2767295] [2021-11-23 17:08:21,504 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:08:22,759 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:08:22,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:22 WrapperNode [2021-11-23 17:08:22,760 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:08:22,761 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:22,761 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:08:22,761 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:08:22,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:22" (1/1) ... [2021-11-23 17:08:23,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:22" (1/1) ... [2021-11-23 17:08:25,978 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83773 [2021-11-23 17:08:25,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:08:25,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:08:25,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:08:25,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:08:25,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:22" (1/1) ... [2021-11-23 17:08:25,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:22" (1/1) ... [2021-11-23 17:08:26,886 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:22" (1/1) ... [2021-11-23 17:08:26,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:22" (1/1) ... [2021-11-23 17:08:28,263 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:22" (1/1) ... [2021-11-23 17:08:28,512 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:22" (1/1) ... [2021-11-23 17:08:28,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:22" (1/1) ... [2021-11-23 17:08:29,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:08:29,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:08:29,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:08:29,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:08:29,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:08:22" (1/1) ... [2021-11-23 17:08:29,536 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:08:29,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:08:29,588 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:08:29,609 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:08:29,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:08:29,649 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:08:29,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:08:29,649 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:08:29,826 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:08:29,828 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:09:09,051 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:09:09,188 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 17:09:09,208 INFO L158 Benchmark]: Toolchain (without parser) took 71363.91ms. Allocated memory was 444.6MB in the beginning and 9.0GB in the end (delta: 8.5GB). Free memory was 280.3MB in the beginning and 7.2GB in the end (delta: -7.0GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2021-11-23 17:09:09,210 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 88.1MB. Free memory was 67.8MB in the beginning and 67.7MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:09:09,212 INFO L158 Benchmark]: CACSL2BoogieTranslator took 24916.57ms. Allocated memory was 444.6MB in the beginning and 2.7GB in the end (delta: 2.2GB). Free memory was 279.2MB in the beginning and 2.0GB in the end (delta: -1.7GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2021-11-23 17:09:09,214 INFO L158 Benchmark]: Boogie Procedure Inliner took 3217.93ms. Allocated memory was 2.7GB in the beginning and 5.0GB in the end (delta: 2.3GB). Free memory was 2.0GB in the beginning and 3.9GB in the end (delta: -1.9GB). Peak memory consumption was 408.9MB. Max. memory is 16.1GB. [2021-11-23 17:09:09,215 INFO L158 Benchmark]: Boogie Preprocessor took 3527.82ms. Allocated memory is still 5.0GB. Free memory was 3.9GB in the beginning and 3.7GB in the end (delta: 206.6MB). Peak memory consumption was 310.4MB. Max. memory is 16.1GB. [2021-11-23 17:09:09,217 INFO L158 Benchmark]: RCFGBuilder took 39696.48ms. Allocated memory was 5.0GB in the beginning and 9.0GB in the end (delta: 4.0GB). Free memory was 3.7GB in the beginning and 7.2GB in the end (delta: -3.5GB). Peak memory consumption was 599.8MB. Max. memory is 16.1GB. [2021-11-23 17:09:09,227 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 88.1MB. Free memory was 67.8MB in the beginning and 67.7MB in the end (delta: 77.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 24916.57ms. Allocated memory was 444.6MB in the beginning and 2.7GB in the end (delta: 2.2GB). Free memory was 279.2MB in the beginning and 2.0GB in the end (delta: -1.7GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 3217.93ms. Allocated memory was 2.7GB in the beginning and 5.0GB in the end (delta: 2.3GB). Free memory was 2.0GB in the beginning and 3.9GB in the end (delta: -1.9GB). Peak memory consumption was 408.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 3527.82ms. Allocated memory is still 5.0GB. Free memory was 3.9GB in the beginning and 3.7GB in the end (delta: 206.6MB). Peak memory consumption was 310.4MB. Max. memory is 16.1GB. * RCFGBuilder took 39696.48ms. Allocated memory was 5.0GB in the beginning and 9.0GB in the end (delta: 4.0GB). Free memory was 3.7GB in the beginning and 7.2GB in the end (delta: -3.5GB). Peak memory consumption was 599.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:09:09,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 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_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label48.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl --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 5480b4d537852325e0b0acda3f8d624aa77fcd434ac8c6220530ec1f980a3ccc --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:09:11,913 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:09:11,916 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:09:11,971 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:09:11,972 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:09:11,977 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:09:11,979 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:09:11,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:09:11,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:09:11,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:09:11,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:09:11,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:09:11,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:09:12,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:09:12,004 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:09:12,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:09:12,010 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:09:12,011 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:09:12,023 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:09:12,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:09:12,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:09:12,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:09:12,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:09:12,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:09:12,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:09:12,035 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:09:12,035 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:09:12,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:09:12,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:09:12,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:09:12,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:09:12,039 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:09:12,040 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:09:12,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:09:12,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:09:12,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:09:12,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:09:12,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:09:12,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:09:12,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:09:12,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:09:12,046 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:09:12,077 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:09:12,079 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:09:12,079 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:09:12,080 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:09:12,080 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:09:12,081 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:09:12,081 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:09:12,081 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:09:12,082 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:09:12,082 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:09:12,084 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:09:12,084 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:09:12,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:09:12,086 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:09:12,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:09:12,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:09:12,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:09:12,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:09:12,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:09:12,087 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:09:12,087 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:09:12,087 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:09:12,088 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:09:12,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:09:12,088 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:09:12,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:09:12,089 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:09:12,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:09:12,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:09:12,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:09:12,090 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:09:12,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:09:12,091 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:09:12,091 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:09:12,091 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:09:12,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:09:12,092 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:09:12,092 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:09:12,092 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_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5480b4d537852325e0b0acda3f8d624aa77fcd434ac8c6220530ec1f980a3ccc [2021-11-23 17:09:12,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:09:12,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:09:12,519 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:09:12,521 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:09:12,521 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:09:12,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem07_label48.c [2021-11-23 17:09:12,613 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/data/d4104e815/2d8c668120974e5cb4fcced3b5252ead/FLAGf8e1a77d4 [2021-11-23 17:09:15,897 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:09:15,897 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/sv-benchmarks/c/eca-rers2012/Problem07_label48.c [2021-11-23 17:09:16,178 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/data/d4104e815/2d8c668120974e5cb4fcced3b5252ead/FLAGf8e1a77d4 [2021-11-23 17:09:16,613 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/data/d4104e815/2d8c668120974e5cb4fcced3b5252ead [2021-11-23 17:09:16,616 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:09:16,617 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:09:16,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:09:16,619 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:09:16,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:09:16,640 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:09:16" (1/1) ... [2021-11-23 17:09:16,641 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c168f41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:16, skipping insertion in model container [2021-11-23 17:09:16,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:09:16" (1/1) ... [2021-11-23 17:09:16,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:09:17,703 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:09:31,486 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/sv-benchmarks/c/eca-rers2012/Problem07_label48.c[2767282,2767295] [2021-11-23 17:09:31,577 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:09:31,594 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:09:39,484 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/sv-benchmarks/c/eca-rers2012/Problem07_label48.c[2767282,2767295] [2021-11-23 17:09:39,505 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:09:40,642 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:09:40,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:40 WrapperNode [2021-11-23 17:09:40,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:09:40,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:09:40,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:09:40,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:09:40,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:40" (1/1) ... [2021-11-23 17:09:41,542 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:40" (1/1) ... [2021-11-23 17:09:44,429 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83726 [2021-11-23 17:09:44,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:09:44,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:09:44,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:09:44,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:09:44,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:40" (1/1) ... [2021-11-23 17:09:44,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:40" (1/1) ... [2021-11-23 17:09:44,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:40" (1/1) ... [2021-11-23 17:09:44,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:40" (1/1) ... [2021-11-23 17:09:47,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:40" (1/1) ... [2021-11-23 17:09:47,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:40" (1/1) ... [2021-11-23 17:09:47,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:40" (1/1) ... [2021-11-23 17:09:48,772 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:09:48,786 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:09:48,788 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:09:48,788 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:09:48,789 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:40" (1/1) ... [2021-11-23 17:09:48,799 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:09:48,813 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:09:48,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:09:48,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:09:48,890 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:09:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:09:48,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:09:48,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:09:49,082 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:09:49,084 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:10:47,655 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:10:47,897 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:10:47,908 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:10:47,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:10:47 BoogieIcfgContainer [2021-11-23 17:10:47,921 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:10:47,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:10:47,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:10:47,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:10:47,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:09:16" (1/3) ... [2021-11-23 17:10:47,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d108d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:10:47, skipping insertion in model container [2021-11-23 17:10:47,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:09:40" (2/3) ... [2021-11-23 17:10:47,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69d108d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:10:47, skipping insertion in model container [2021-11-23 17:10:47,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:10:47" (3/3) ... [2021-11-23 17:10:47,932 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem07_label48.c [2021-11-23 17:10:47,938 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:10:47,938 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:10:48,027 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:10:48,034 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 [2021-11-23 17:10:48,034 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:10:48,237 INFO L276 IsEmpty]: Start isEmpty. Operand has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 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) [2021-11-23 17:10:49,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10090 [2021-11-23 17:10:49,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:10:49,098 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:10:49,102 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:10:49,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:10:49,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1417285911, now seen corresponding path program 1 times [2021-11-23 17:10:49,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:10:49,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2095740554] [2021-11-23 17:10:49,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:10:49,230 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:10:49,230 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:10:49,231 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:10:49,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39938d39-ca15-4608-9846-887422b531ee/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:10:53,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:10:54,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 10227 conjuncts, 102 conjunts are in the unsatisfiable core [2021-11-23 17:10:54,683 INFO L286 TraceCheckSpWp]: Computing forward predicates...