./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem102_label55.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_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/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_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem102_label55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/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_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/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 50921c5702a81da917e01e0920511a5fcee860f95e65c9b143e9c121c910841b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:29:52,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:29:52,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:29:52,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:29:52,738 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:29:52,743 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:29:52,745 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:29:52,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:29:52,751 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:29:52,759 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:29:52,760 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:29:52,762 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:29:52,763 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:29:52,766 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:29:52,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:29:52,774 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:29:52,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:29:52,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:29:52,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:29:52,789 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:29:52,791 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:29:52,793 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:29:52,796 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:29:52,797 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:29:52,801 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:29:52,802 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:29:52,802 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:29:52,804 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:29:52,805 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:29:52,806 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:29:52,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:29:52,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:29:52,810 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:29:52,812 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:29:52,813 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:29:52,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:29:52,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:29:52,814 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:29:52,814 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:29:52,815 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:29:52,816 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:29:52,821 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:29:52,846 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:29:52,846 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:29:52,846 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:29:52,847 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:29:52,847 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:29:52,848 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:29:52,848 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:29:52,848 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:29:52,848 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:29:52,849 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:29:52,849 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:29:52,849 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:29:52,849 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:29:52,849 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:29:52,850 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:29:52,850 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:29:52,850 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:29:52,850 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:29:52,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:29:52,851 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:29:52,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:29:52,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:29:52,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:29:52,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:29:52,853 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:29:52,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:29:52,853 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:29:52,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:29:52,854 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:29:52,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:29:52,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:29:52,854 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:29:52,854 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:29:52,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:29:52,855 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:29:52,855 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:29:52,855 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:29:52,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:29:52,856 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:29:52,856 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:29:52,856 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:29:52,857 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_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50921c5702a81da917e01e0920511a5fcee860f95e65c9b143e9c121c910841b [2021-11-23 17:29:53,131 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:29:53,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:29:53,162 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:29:53,164 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:29:53,165 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:29:53,167 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-programs/Problem102_label55.c [2021-11-23 17:29:53,232 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/data/785b8ab8d/be352c42dff148c2b7cd9a8b0aade9a1/FLAGe8a25d9dc [2021-11-23 17:29:57,103 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:29:57,103 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/sv-benchmarks/c/eca-programs/Problem102_label55.c [2021-11-23 17:29:57,377 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/data/785b8ab8d/be352c42dff148c2b7cd9a8b0aade9a1/FLAGe8a25d9dc [2021-11-23 17:29:57,746 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/data/785b8ab8d/be352c42dff148c2b7cd9a8b0aade9a1 [2021-11-23 17:29:57,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:29:57,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:29:57,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:29:57,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:29:57,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:29:57,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:29:57" (1/1) ... [2021-11-23 17:29:57,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c72d674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:29:57, skipping insertion in model container [2021-11-23 17:29:57,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:29:57" (1/1) ... [2021-11-23 17:29:57,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:29:59,665 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:30:25,400 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_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/sv-benchmarks/c/eca-programs/Problem102_label55.c[5708174,5708187] [2021-11-23 17:30:25,535 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:30:25,544 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:30:39,120 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_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/sv-benchmarks/c/eca-programs/Problem102_label55.c[5708174,5708187] [2021-11-23 17:30:39,134 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:30:43,881 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:30:43,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:30:43 WrapperNode [2021-11-23 17:30:43,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:30:43,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:30:43,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:30:43,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:30:43,893 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:30:43" (1/1) ... [2021-11-23 17:30:45,252 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:30:43" (1/1) ... [2021-11-23 17:30:50,037 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184295 [2021-11-23 17:30:50,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:30:50,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:30:50,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:30:50,039 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:30:50,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:30:43" (1/1) ... [2021-11-23 17:30:50,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:30:43" (1/1) ... [2021-11-23 17:30:50,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:30:43" (1/1) ... [2021-11-23 17:30:50,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:30:43" (1/1) ... [2021-11-23 17:30:54,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:30:43" (1/1) ... [2021-11-23 17:30:54,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:30:43" (1/1) ... [2021-11-23 17:30:55,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:30:43" (1/1) ... [2021-11-23 17:30:56,016 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:30:56,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:30:56,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:30:56,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:30:56,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:30:43" (1/1) ... [2021-11-23 17:30:56,031 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:30:56,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:30:56,071 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:30:56,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:30:56,119 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:30:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:30:56,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:30:56,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:30:56,310 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:30:56,311 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:32:03,272 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:32:03,513 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 17:32:03,519 INFO L158 Benchmark]: Toolchain (without parser) took 125766.15ms. Allocated memory was 604.0MB in the beginning and 12.2GB in the end (delta: 11.6GB). Free memory was 297.5MB in the beginning and 8.2GB in the end (delta: -7.9GB). Peak memory consumption was 3.7GB. Max. memory is 16.1GB. [2021-11-23 17:32:03,520 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:32:03,522 INFO L158 Benchmark]: CACSL2BoogieTranslator took 46129.67ms. Allocated memory was 604.0MB in the beginning and 6.5GB in the end (delta: 5.9GB). Free memory was 297.5MB in the beginning and 4.6GB in the end (delta: -4.3GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. [2021-11-23 17:32:03,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 6155.77ms. Allocated memory was 6.5GB in the beginning and 9.2GB in the end (delta: 2.6GB). Free memory was 4.6GB in the beginning and 6.5GB in the end (delta: -2.0GB). Peak memory consumption was 688.9MB. Max. memory is 16.1GB. [2021-11-23 17:32:03,525 INFO L158 Benchmark]: Boogie Preprocessor took 5977.71ms. Allocated memory is still 9.2GB. Free memory was 6.5GB in the beginning and 6.1GB in the end (delta: 434.1MB). Peak memory consumption was 647.0MB. Max. memory is 16.1GB. [2021-11-23 17:32:03,527 INFO L158 Benchmark]: RCFGBuilder took 67496.85ms. Allocated memory was 9.2GB in the beginning and 12.2GB in the end (delta: 3.0GB). Free memory was 6.1GB in the beginning and 8.2GB in the end (delta: -2.1GB). Peak memory consumption was 932.2MB. Max. memory is 16.1GB. [2021-11-23 17:32:03,537 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 90.2MB. Free memory is still 70.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 46129.67ms. Allocated memory was 604.0MB in the beginning and 6.5GB in the end (delta: 5.9GB). Free memory was 297.5MB in the beginning and 4.6GB in the end (delta: -4.3GB). Peak memory consumption was 2.6GB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 6155.77ms. Allocated memory was 6.5GB in the beginning and 9.2GB in the end (delta: 2.6GB). Free memory was 4.6GB in the beginning and 6.5GB in the end (delta: -2.0GB). Peak memory consumption was 688.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 5977.71ms. Allocated memory is still 9.2GB. Free memory was 6.5GB in the beginning and 6.1GB in the end (delta: 434.1MB). Peak memory consumption was 647.0MB. Max. memory is 16.1GB. * RCFGBuilder took 67496.85ms. Allocated memory was 9.2GB in the beginning and 12.2GB in the end (delta: 3.0GB). Free memory was 6.1GB in the beginning and 8.2GB in the end (delta: -2.1GB). Peak memory consumption was 932.2MB. 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 17:32:03,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/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_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/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_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem102_label55.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/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_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/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 50921c5702a81da917e01e0920511a5fcee860f95e65c9b143e9c121c910841b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:32:06,224 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:32:06,227 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:32:06,264 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:32:06,265 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:32:06,267 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:32:06,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:32:06,272 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:32:06,275 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:32:06,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:32:06,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:32:06,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:32:06,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:32:06,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:32:06,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:32:06,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:32:06,287 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:32:06,288 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:32:06,301 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:32:06,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:32:06,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:32:06,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:32:06,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:32:06,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:32:06,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:32:06,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:32:06,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:32:06,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:32:06,319 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:32:06,320 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:32:06,321 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:32:06,322 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:32:06,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:32:06,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:32:06,326 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:32:06,326 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:32:06,327 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:32:06,327 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:32:06,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:32:06,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:32:06,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:32:06,331 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:32:06,363 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:32:06,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:32:06,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:32:06,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:32:06,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:32:06,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:32:06,366 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:32:06,366 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:32:06,366 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:32:06,367 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:32:06,367 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:32:06,367 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:32:06,368 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:32:06,369 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:32:06,369 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:32:06,369 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:32:06,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:32:06,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:32:06,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:32:06,371 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:32:06,371 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:32:06,371 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:32:06,372 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:32:06,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:32:06,372 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:32:06,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:32:06,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:32:06,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:32:06,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:32:06,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:32:06,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:32:06,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:32:06,375 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:32:06,375 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:32:06,376 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:32:06,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:32:06,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:32:06,377 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:32:06,377 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_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50921c5702a81da917e01e0920511a5fcee860f95e65c9b143e9c121c910841b [2021-11-23 17:32:06,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:32:06,829 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:32:06,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:32:06,832 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:32:06,833 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:32:06,834 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-programs/Problem102_label55.c [2021-11-23 17:32:06,929 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/data/984bdd906/8bf7893d465440159fdd63655d921254/FLAG1e4eefa11 [2021-11-23 17:32:10,840 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:32:10,841 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/sv-benchmarks/c/eca-programs/Problem102_label55.c [2021-11-23 17:32:11,154 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/data/984bdd906/8bf7893d465440159fdd63655d921254/FLAG1e4eefa11 [2021-11-23 17:32:11,441 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/data/984bdd906/8bf7893d465440159fdd63655d921254 [2021-11-23 17:32:11,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:32:11,446 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:32:11,447 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:32:11,448 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:32:11,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:32:11,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:32:11" (1/1) ... [2021-11-23 17:32:11,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff65903 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:11, skipping insertion in model container [2021-11-23 17:32:11,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:32:11" (1/1) ... [2021-11-23 17:32:11,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:32:13,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:32:39,342 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_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/sv-benchmarks/c/eca-programs/Problem102_label55.c[5708174,5708187] [2021-11-23 17:32:39,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:32:39,489 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:32:52,999 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_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/sv-benchmarks/c/eca-programs/Problem102_label55.c[5708174,5708187] [2021-11-23 17:32:53,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:32:57,419 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:32:57,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:57 WrapperNode [2021-11-23 17:32:57,420 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:32:57,421 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:32:57,421 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:32:57,421 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:32:57,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:57" (1/1) ... [2021-11-23 17:32:58,648 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:57" (1/1) ... [2021-11-23 17:33:03,101 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184212 [2021-11-23 17:33:03,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:33:03,102 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:33:03,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:33:03,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:33:03,112 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:57" (1/1) ... [2021-11-23 17:33:03,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:57" (1/1) ... [2021-11-23 17:33:04,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:57" (1/1) ... [2021-11-23 17:33:04,648 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:57" (1/1) ... [2021-11-23 17:33:06,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:57" (1/1) ... [2021-11-23 17:33:07,448 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:57" (1/1) ... [2021-11-23 17:33:08,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:57" (1/1) ... [2021-11-23 17:33:08,940 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:33:08,941 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:33:08,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:33:08,943 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:33:08,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:57" (1/1) ... [2021-11-23 17:33:08,957 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:33:08,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:33:08,991 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:33:08,995 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:33:09,036 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:33:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:33:09,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:33:09,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:33:09,337 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:33:09,339 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:34:47,037 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:34:47,170 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:34:47,171 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:34:47,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:34:47 BoogieIcfgContainer [2021-11-23 17:34:47,194 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:34:47,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:34:47,197 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:34:47,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:34:47,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:32:11" (1/3) ... [2021-11-23 17:34:47,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147dd23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:34:47, skipping insertion in model container [2021-11-23 17:34:47,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:32:57" (2/3) ... [2021-11-23 17:34:47,201 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@147dd23c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:34:47, skipping insertion in model container [2021-11-23 17:34:47,201 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:34:47" (3/3) ... [2021-11-23 17:34:47,202 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem102_label55.c [2021-11-23 17:34:47,206 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:34:47,207 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:34:47,309 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:34:47,316 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 17:34:47,317 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:34:47,645 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 17:34:49,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17868 [2021-11-23 17:34:49,954 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:34:49,968 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, 1, 1] [2021-11-23 17:34:49,975 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:34:49,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:34:49,998 INFO L85 PathProgramCache]: Analyzing trace with hash -937204042, now seen corresponding path program 1 times [2021-11-23 17:34:50,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:34:50,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [321861706] [2021-11-23 17:34:50,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:34:50,171 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:34:50,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:34:50,172 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:34:50,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2a1e7ba6-481d-4a68-893b-5901a86ac2b6/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process