./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem08_label15.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_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/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_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem08_label15.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/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_428f6fd7-1e90-480c-a06a-2b58e07d9487/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 2323e9f67dbfda1ee31a267c0d8bb5a8ee3a39f76cce53e00cc869033ee93a9f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:44:50,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:44:50,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:44:50,584 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:44:50,585 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:44:50,586 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:44:50,588 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:44:50,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:44:50,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:44:50,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:44:50,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:44:50,597 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:44:50,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:44:50,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:44:50,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:44:50,603 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:44:50,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:44:50,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:44:50,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:44:50,610 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:44:50,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:44:50,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:44:50,616 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:44:50,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:44:50,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:44:50,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:44:50,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:44:50,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:44:50,624 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:44:50,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:44:50,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:44:50,627 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:44:50,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:44:50,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:44:50,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:44:50,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:44:50,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:44:50,633 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:44:50,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:44:50,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:44:50,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:44:50,637 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:44:50,663 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:44:50,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:44:50,664 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:44:50,664 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:44:50,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:44:50,665 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:44:50,665 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:44:50,666 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:44:50,666 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:44:50,666 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:44:50,666 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:44:50,667 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:44:50,667 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:44:50,667 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:44:50,667 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:44:50,668 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:44:50,668 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:44:50,668 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:44:50,669 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:44:50,669 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:44:50,669 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:44:50,670 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:44:50,670 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:44:50,670 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:44:50,670 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:44:50,671 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:44:50,671 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:44:50,671 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:44:50,671 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:44:50,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:44:50,672 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:44:50,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:44:50,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:44:50,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:44:50,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:44:50,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:44:50,673 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:44:50,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:44:50,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:44:50,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:44:50,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:44:50,674 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_428f6fd7-1e90-480c-a06a-2b58e07d9487/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2323e9f67dbfda1ee31a267c0d8bb5a8ee3a39f76cce53e00cc869033ee93a9f [2021-11-23 16:44:50,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:44:51,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:44:51,013 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:44:51,014 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:44:51,016 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:44:51,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem08_label15.c [2021-11-23 16:44:51,101 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/data/c03a7babe/07887969139f418dab140a6506707528/FLAG449780e83 [2021-11-23 16:44:54,945 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:44:54,945 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/sv-benchmarks/c/eca-rers2012/Problem08_label15.c [2021-11-23 16:44:55,228 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/data/c03a7babe/07887969139f418dab140a6506707528/FLAG449780e83 [2021-11-23 16:44:55,506 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/data/c03a7babe/07887969139f418dab140a6506707528 [2021-11-23 16:44:55,509 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:44:55,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:44:55,512 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:44:55,512 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:44:55,517 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:44:55,518 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:44:55" (1/1) ... [2021-11-23 16:44:55,520 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b14d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:44:55, skipping insertion in model container [2021-11-23 16:44:55,520 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:44:55" (1/1) ... [2021-11-23 16:44:55,528 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:44:57,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:45:23,986 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_428f6fd7-1e90-480c-a06a-2b58e07d9487/sv-benchmarks/c/eca-rers2012/Problem08_label15.c[5708155,5708168] [2021-11-23 16:45:24,123 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:45:24,132 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:45:38,053 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_428f6fd7-1e90-480c-a06a-2b58e07d9487/sv-benchmarks/c/eca-rers2012/Problem08_label15.c[5708155,5708168] [2021-11-23 16:45:38,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:45:43,311 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:45:43,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:43 WrapperNode [2021-11-23 16:45:43,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:45:43,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:45:43,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:45:43,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:45:43,320 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:43" (1/1) ... [2021-11-23 16:45:44,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:43" (1/1) ... [2021-11-23 16:45:50,332 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184288 [2021-11-23 16:45:50,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:45:50,334 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:45:50,334 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:45:50,334 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:45:50,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:43" (1/1) ... [2021-11-23 16:45:50,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:43" (1/1) ... [2021-11-23 16:45:51,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:43" (1/1) ... [2021-11-23 16:45:51,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:43" (1/1) ... [2021-11-23 16:45:53,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:43" (1/1) ... [2021-11-23 16:45:54,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:43" (1/1) ... [2021-11-23 16:45:55,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:43" (1/1) ... [2021-11-23 16:45:55,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:45:55,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:45:55,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:45:55,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:45:55,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:43" (1/1) ... [2021-11-23 16:45:55,991 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:45:56,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:45:56,022 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:45:56,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:45:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:45:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:45:56,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:45:56,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:45:56,271 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:45:56,272 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:47:05,607 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:47:05,862 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 16:47:05,873 INFO L158 Benchmark]: Toolchain (without parser) took 130359.72ms. Allocated memory was 887.1MB in the beginning and 12.3GB in the end (delta: 11.4GB). Free memory was 573.9MB in the beginning and 8.5GB in the end (delta: -8.0GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. [2021-11-23 16:47:05,874 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:47:05,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 47799.45ms. Allocated memory was 887.1MB in the beginning and 5.7GB in the end (delta: 4.8GB). Free memory was 573.9MB in the beginning and 3.6GB in the end (delta: -3.1GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. [2021-11-23 16:47:05,878 INFO L158 Benchmark]: Boogie Procedure Inliner took 7021.18ms. Allocated memory was 5.7GB in the beginning and 8.5GB in the end (delta: 2.9GB). Free memory was 3.6GB in the beginning and 5.9GB in the end (delta: -2.2GB). Peak memory consumption was 858.8MB. Max. memory is 16.1GB. [2021-11-23 16:47:05,879 INFO L158 Benchmark]: Boogie Preprocessor took 5631.37ms. Allocated memory was 8.5GB in the beginning and 11.1GB in the end (delta: 2.6GB). Free memory was 5.9GB in the beginning and 8.0GB in the end (delta: -2.1GB). Peak memory consumption was 698.4MB. Max. memory is 16.1GB. [2021-11-23 16:47:05,882 INFO L158 Benchmark]: RCFGBuilder took 69902.64ms. Allocated memory was 11.1GB in the beginning and 12.3GB in the end (delta: 1.2GB). Free memory was 8.0GB in the beginning and 8.5GB in the end (delta: -572.5MB). Peak memory consumption was 983.6MB. Max. memory is 16.1GB. [2021-11-23 16:47:05,893 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 37.1MB in the beginning and 37.0MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 47799.45ms. Allocated memory was 887.1MB in the beginning and 5.7GB in the end (delta: 4.8GB). Free memory was 573.9MB in the beginning and 3.6GB in the end (delta: -3.1GB). Peak memory consumption was 1.9GB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 7021.18ms. Allocated memory was 5.7GB in the beginning and 8.5GB in the end (delta: 2.9GB). Free memory was 3.6GB in the beginning and 5.9GB in the end (delta: -2.2GB). Peak memory consumption was 858.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 5631.37ms. Allocated memory was 8.5GB in the beginning and 11.1GB in the end (delta: 2.6GB). Free memory was 5.9GB in the beginning and 8.0GB in the end (delta: -2.1GB). Peak memory consumption was 698.4MB. Max. memory is 16.1GB. * RCFGBuilder took 69902.64ms. Allocated memory was 11.1GB in the beginning and 12.3GB in the end (delta: 1.2GB). Free memory was 8.0GB in the beginning and 8.5GB in the end (delta: -572.5MB). Peak memory consumption was 983.6MB. 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 16:47:06,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/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_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/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_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem08_label15.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/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_428f6fd7-1e90-480c-a06a-2b58e07d9487/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 2323e9f67dbfda1ee31a267c0d8bb5a8ee3a39f76cce53e00cc869033ee93a9f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:47:08,786 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:47:08,789 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:47:08,860 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:47:08,861 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:47:08,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:47:08,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:47:08,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:47:08,881 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:47:08,891 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:47:08,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:47:08,895 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:47:08,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:47:08,899 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:47:08,902 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:47:08,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:47:08,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:47:08,912 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:47:08,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:47:08,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:47:08,926 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:47:08,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:47:08,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:47:08,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:47:08,948 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:47:08,950 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:47:08,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:47:08,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:47:08,954 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:47:08,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:47:08,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:47:08,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:47:08,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:47:08,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:47:08,963 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:47:08,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:47:08,964 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:47:08,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:47:08,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:47:08,968 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:47:08,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:47:08,975 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:47:09,030 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:47:09,030 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:47:09,031 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:47:09,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:47:09,033 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:47:09,033 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:47:09,034 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:47:09,034 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:47:09,034 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:47:09,035 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:47:09,036 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:47:09,036 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:47:09,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:47:09,038 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:47:09,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:47:09,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:47:09,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:47:09,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:47:09,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:47:09,040 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:47:09,040 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:47:09,041 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:47:09,041 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:47:09,041 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:47:09,041 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:47:09,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:47:09,042 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:47:09,042 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:47:09,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:47:09,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:09,043 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:47:09,043 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:47:09,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:47:09,045 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:47:09,045 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:47:09,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:47:09,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:47:09,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:47:09,046 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_428f6fd7-1e90-480c-a06a-2b58e07d9487/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2323e9f67dbfda1ee31a267c0d8bb5a8ee3a39f76cce53e00cc869033ee93a9f [2021-11-23 16:47:09,433 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:47:09,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:47:09,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:47:09,461 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:47:09,462 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:47:09,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem08_label15.c [2021-11-23 16:47:09,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/data/0fb77c53b/8f41279d81d34de3acc46d2f7697eb7f/FLAGaec2e6e93 [2021-11-23 16:47:13,514 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:47:13,516 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/sv-benchmarks/c/eca-rers2012/Problem08_label15.c [2021-11-23 16:47:14,115 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/data/0fb77c53b/8f41279d81d34de3acc46d2f7697eb7f/FLAGaec2e6e93 [2021-11-23 16:47:14,498 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/data/0fb77c53b/8f41279d81d34de3acc46d2f7697eb7f [2021-11-23 16:47:14,501 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:47:14,503 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:47:14,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:14,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:47:14,510 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:47:14,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:14" (1/1) ... [2021-11-23 16:47:14,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b7d5b71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:14, skipping insertion in model container [2021-11-23 16:47:14,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:14" (1/1) ... [2021-11-23 16:47:14,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:47:16,215 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:47:44,543 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_428f6fd7-1e90-480c-a06a-2b58e07d9487/sv-benchmarks/c/eca-rers2012/Problem08_label15.c[5708155,5708168] [2021-11-23 16:47:44,675 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:44,695 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:47:58,817 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_428f6fd7-1e90-480c-a06a-2b58e07d9487/sv-benchmarks/c/eca-rers2012/Problem08_label15.c[5708155,5708168] [2021-11-23 16:47:58,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:48:04,118 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:48:04,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:04 WrapperNode [2021-11-23 16:48:04,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:48:04,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:48:04,120 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:48:04,120 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:48:04,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:04" (1/1) ... [2021-11-23 16:48:05,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:04" (1/1) ... [2021-11-23 16:48:11,018 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184205 [2021-11-23 16:48:11,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:48:11,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:48:11,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:48:11,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:48:11,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:04" (1/1) ... [2021-11-23 16:48:11,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:04" (1/1) ... [2021-11-23 16:48:12,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:04" (1/1) ... [2021-11-23 16:48:12,705 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:04" (1/1) ... [2021-11-23 16:48:15,876 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:04" (1/1) ... [2021-11-23 16:48:16,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:04" (1/1) ... [2021-11-23 16:48:16,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:04" (1/1) ... [2021-11-23 16:48:17,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:48:17,711 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:48:17,713 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:48:17,713 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:48:17,717 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:04" (1/1) ... [2021-11-23 16:48:17,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:48:17,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:48:17,765 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:48:17,770 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:48:17,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:48:17,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:48:17,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:48:17,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:48:18,007 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:48:18,009 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:50:01,763 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:50:01,879 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:50:01,880 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 16:50:01,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:50:01 BoogieIcfgContainer [2021-11-23 16:50:01,905 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:50:01,908 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:50:01,908 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:50:01,911 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:50:01,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:47:14" (1/3) ... [2021-11-23 16:50:01,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bdd70e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:50:01, skipping insertion in model container [2021-11-23 16:50:01,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:04" (2/3) ... [2021-11-23 16:50:01,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bdd70e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:50:01, skipping insertion in model container [2021-11-23 16:50:01,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:50:01" (3/3) ... [2021-11-23 16:50:01,915 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem08_label15.c [2021-11-23 16:50:01,921 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:50:01,921 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:50:02,030 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:50:02,037 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 16:50:02,038 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:50:02,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 23215 states, 23213 states have (on average 1.8828673588075646) internal successors, (43707), 23214 states have internal predecessors, (43707), 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 16:50:05,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17866 [2021-11-23 16:50:05,274 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:50:05,293 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:50:05,300 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:50:05,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:50:05,323 INFO L85 PathProgramCache]: Analyzing trace with hash 463825006, now seen corresponding path program 1 times [2021-11-23 16:50:05,550 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:50:05,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [573794972] [2021-11-23 16:50:05,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:50:05,559 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:50:05,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:50:05,561 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:50:05,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_428f6fd7-1e90-480c-a06a-2b58e07d9487/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process