./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label17.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_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/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_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/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_5f92d24a-b694-4d32-862c-77e7a3d45c0c/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 076813dc3dd2e9fdee9ded082601b1bae34511757f8a23a89b3ede7737a4fca9 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:37:52,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:37:52,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:37:52,792 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:37:52,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:37:52,797 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:37:52,799 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:37:52,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:37:52,807 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:37:52,813 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:37:52,814 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:37:52,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:37:52,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:37:52,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:37:52,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:37:52,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:37:52,829 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:37:52,830 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:37:52,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:37:52,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:37:52,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:37:52,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:37:52,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:37:52,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:37:52,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:37:52,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:37:52,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:37:52,862 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:37:52,862 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:37:52,864 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:37:52,864 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:37:52,866 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:37:52,868 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:37:52,869 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:37:52,871 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:37:52,872 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:37:52,873 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:37:52,873 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:37:52,873 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:37:52,874 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:37:52,875 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:37:52,876 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:37:52,919 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:37:52,920 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:37:52,920 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:37:52,921 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:37:52,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:37:52,922 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:37:52,922 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:37:52,922 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:37:52,923 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:37:52,923 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:37:52,924 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:37:52,924 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:37:52,925 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:37:52,925 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:37:52,925 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:37:52,925 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:37:52,926 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:37:52,926 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:37:52,927 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:37:52,928 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:37:52,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:37:52,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:37:52,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:37:52,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:37:52,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:37:52,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:37:52,931 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:37:52,931 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:37:52,931 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:37:52,931 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:37:52,932 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:37:52,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:37:52,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:37:52,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:37:52,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:37:52,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:37:52,933 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:37:52,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:37:52,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:37:52,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:37:52,934 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:37:52,935 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_5f92d24a-b694-4d32-862c-77e7a3d45c0c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 076813dc3dd2e9fdee9ded082601b1bae34511757f8a23a89b3ede7737a4fca9 [2021-11-23 17:37:53,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:37:53,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:37:53,265 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:37:53,266 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:37:53,267 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:37:53,268 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem07_label17.c [2021-11-23 17:37:53,348 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/data/f21d7ad94/9ad85c6c6284489eb9a4dd0cc041b83d/FLAG7e8605fe3 [2021-11-23 17:37:56,696 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:37:56,696 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/sv-benchmarks/c/eca-rers2012/Problem07_label17.c [2021-11-23 17:37:56,864 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/data/f21d7ad94/9ad85c6c6284489eb9a4dd0cc041b83d/FLAG7e8605fe3 [2021-11-23 17:37:57,207 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/data/f21d7ad94/9ad85c6c6284489eb9a4dd0cc041b83d [2021-11-23 17:37:57,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:37:57,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:37:57,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:37:57,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:37:57,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:37:57,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:37:57" (1/1) ... [2021-11-23 17:37:57,223 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a99dfb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:37:57, skipping insertion in model container [2021-11-23 17:37:57,224 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:37:57" (1/1) ... [2021-11-23 17:37:57,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:37:58,320 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:38:10,074 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_5f92d24a-b694-4d32-862c-77e7a3d45c0c/sv-benchmarks/c/eca-rers2012/Problem07_label17.c[2771884,2771897] [2021-11-23 17:38:10,151 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:38:10,162 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:38:17,721 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_5f92d24a-b694-4d32-862c-77e7a3d45c0c/sv-benchmarks/c/eca-rers2012/Problem07_label17.c[2771884,2771897] [2021-11-23 17:38:17,728 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:38:18,722 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:38:18,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:18 WrapperNode [2021-11-23 17:38:18,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:38:18,723 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:38:18,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:38:18,724 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:38:18,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:18" (1/1) ... [2021-11-23 17:38:19,394 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:18" (1/1) ... [2021-11-23 17:38:22,751 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83773 [2021-11-23 17:38:22,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:38:22,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:38:22,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:38:22,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:38:22,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:18" (1/1) ... [2021-11-23 17:38:22,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:18" (1/1) ... [2021-11-23 17:38:23,399 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:18" (1/1) ... [2021-11-23 17:38:23,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:18" (1/1) ... [2021-11-23 17:38:24,890 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:18" (1/1) ... [2021-11-23 17:38:25,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:18" (1/1) ... [2021-11-23 17:38:25,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:18" (1/1) ... [2021-11-23 17:38:25,977 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:38:25,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:38:25,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:38:25,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:38:25,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:38:18" (1/1) ... [2021-11-23 17:38:25,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:38:26,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:38:26,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:38:26,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:38:26,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:38:26,062 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:38:26,062 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:38:26,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:38:26,199 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:38:26,201 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:39:03,842 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:39:04,010 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 17:39:04,016 INFO L158 Benchmark]: Toolchain (without parser) took 66802.53ms. Allocated memory was 364.9MB in the beginning and 8.2GB in the end (delta: 7.9GB). Free memory was 189.1MB in the beginning and 6.8GB in the end (delta: -6.6GB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2021-11-23 17:39:04,017 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:39:04,020 INFO L158 Benchmark]: CACSL2BoogieTranslator took 21510.62ms. Allocated memory was 364.9MB in the beginning and 2.7GB in the end (delta: 2.4GB). Free memory was 188.0MB in the beginning and 2.1GB in the end (delta: -1.9GB). Peak memory consumption was 765.5MB. Max. memory is 16.1GB. [2021-11-23 17:39:04,021 INFO L158 Benchmark]: Boogie Procedure Inliner took 4029.15ms. Allocated memory was 2.7GB in the beginning and 5.4GB in the end (delta: 2.7GB). Free memory was 2.1GB in the beginning and 4.4GB in the end (delta: -2.3GB). Peak memory consumption was 406.8MB. Max. memory is 16.1GB. [2021-11-23 17:39:04,023 INFO L158 Benchmark]: Boogie Preprocessor took 3224.08ms. Allocated memory is still 5.4GB. Free memory was 4.4GB in the beginning and 4.1GB in the end (delta: 282.1MB). Peak memory consumption was 356.5MB. Max. memory is 16.1GB. [2021-11-23 17:39:04,024 INFO L158 Benchmark]: RCFGBuilder took 38034.13ms. Allocated memory was 5.4GB in the beginning and 8.2GB in the end (delta: 2.8GB). Free memory was 4.1GB in the beginning and 6.8GB in the end (delta: -2.6GB). Peak memory consumption was 592.4MB. Max. memory is 16.1GB. [2021-11-23 17:39:04,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 62.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 21510.62ms. Allocated memory was 364.9MB in the beginning and 2.7GB in the end (delta: 2.4GB). Free memory was 188.0MB in the beginning and 2.1GB in the end (delta: -1.9GB). Peak memory consumption was 765.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 4029.15ms. Allocated memory was 2.7GB in the beginning and 5.4GB in the end (delta: 2.7GB). Free memory was 2.1GB in the beginning and 4.4GB in the end (delta: -2.3GB). Peak memory consumption was 406.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 3224.08ms. Allocated memory is still 5.4GB. Free memory was 4.4GB in the beginning and 4.1GB in the end (delta: 282.1MB). Peak memory consumption was 356.5MB. Max. memory is 16.1GB. * RCFGBuilder took 38034.13ms. Allocated memory was 5.4GB in the beginning and 8.2GB in the end (delta: 2.8GB). Free memory was 4.1GB in the beginning and 6.8GB in the end (delta: -2.6GB). Peak memory consumption was 592.4MB. 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 17:39:04,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/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_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/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_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/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_5f92d24a-b694-4d32-862c-77e7a3d45c0c/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 076813dc3dd2e9fdee9ded082601b1bae34511757f8a23a89b3ede7737a4fca9 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:39:06,709 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:39:06,712 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:39:06,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:39:06,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:39:06,778 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:39:06,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:39:06,786 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:39:06,790 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:39:06,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:39:06,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:39:06,805 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:39:06,806 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:39:06,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:39:06,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:39:06,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:39:06,821 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:39:06,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:39:06,825 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:39:06,835 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:39:06,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:39:06,839 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:39:06,843 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:39:06,845 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:39:06,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:39:06,850 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:39:06,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:39:06,853 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:39:06,854 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:39:06,855 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:39:06,856 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:39:06,857 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:39:06,859 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:39:06,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:39:06,862 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:39:06,863 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:39:06,864 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:39:06,864 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:39:06,865 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:39:06,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:39:06,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:39:06,870 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:39:06,918 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:39:06,919 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:39:06,920 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:39:06,920 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:39:06,921 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:39:06,921 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:39:06,922 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:39:06,922 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:39:06,922 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:39:06,922 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:39:06,923 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:39:06,924 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:39:06,925 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:39:06,926 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:39:06,926 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:39:06,926 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:39:06,926 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:39:06,927 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:39:06,927 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:39:06,927 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:39:06,927 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:39:06,928 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:39:06,928 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:39:06,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:39:06,929 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:39:06,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:39:06,929 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:39:06,930 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:39:06,930 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:39:06,930 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:39:06,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:39:06,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:39:06,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:39:06,931 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:39:06,932 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:39:06,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:39:06,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:39:06,933 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:39:06,933 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_5f92d24a-b694-4d32-862c-77e7a3d45c0c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 076813dc3dd2e9fdee9ded082601b1bae34511757f8a23a89b3ede7737a4fca9 [2021-11-23 17:39:07,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:39:07,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:39:07,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:39:07,378 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:39:07,379 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:39:07,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem07_label17.c [2021-11-23 17:39:07,457 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/data/a926f550a/67e8da65729b4be3a5f8b8256662ab9a/FLAGfd2a41394 [2021-11-23 17:39:10,289 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:39:10,289 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/sv-benchmarks/c/eca-rers2012/Problem07_label17.c [2021-11-23 17:39:10,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/data/a926f550a/67e8da65729b4be3a5f8b8256662ab9a/FLAGfd2a41394 [2021-11-23 17:39:10,868 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/data/a926f550a/67e8da65729b4be3a5f8b8256662ab9a [2021-11-23 17:39:10,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:39:10,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:39:10,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:39:10,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:39:10,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:39:10,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:39:10" (1/1) ... [2021-11-23 17:39:10,880 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50281f6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:10, skipping insertion in model container [2021-11-23 17:39:10,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:39:10" (1/1) ... [2021-11-23 17:39:10,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:39:11,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:39:24,980 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_5f92d24a-b694-4d32-862c-77e7a3d45c0c/sv-benchmarks/c/eca-rers2012/Problem07_label17.c[2771884,2771897] [2021-11-23 17:39:25,055 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:39:25,068 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:39:32,326 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_5f92d24a-b694-4d32-862c-77e7a3d45c0c/sv-benchmarks/c/eca-rers2012/Problem07_label17.c[2771884,2771897] [2021-11-23 17:39:32,334 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:39:33,332 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:39:33,332 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:33 WrapperNode [2021-11-23 17:39:33,332 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:39:33,333 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:39:33,333 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:39:33,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:39:33,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:33" (1/1) ... [2021-11-23 17:39:34,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:33" (1/1) ... [2021-11-23 17:39:36,779 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83726 [2021-11-23 17:39:36,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:39:36,781 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:39:36,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:39:36,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:39:36,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:33" (1/1) ... [2021-11-23 17:39:36,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:33" (1/1) ... [2021-11-23 17:39:37,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:33" (1/1) ... [2021-11-23 17:39:37,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:33" (1/1) ... [2021-11-23 17:39:38,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:33" (1/1) ... [2021-11-23 17:39:38,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:33" (1/1) ... [2021-11-23 17:39:39,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:33" (1/1) ... [2021-11-23 17:39:40,020 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:39:40,021 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:39:40,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:39:40,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:39:40,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:33" (1/1) ... [2021-11-23 17:39:40,032 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:39:40,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:39:40,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:39:40,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:39:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:39:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:39:40,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:39:40,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:39:40,243 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:39:40,245 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:40:36,663 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:40:36,743 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:40:36,743 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:40:36,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:40:36 BoogieIcfgContainer [2021-11-23 17:40:36,756 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:40:36,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:40:36,759 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:40:36,762 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:40:36,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:39:10" (1/3) ... [2021-11-23 17:40:36,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69363636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:40:36, skipping insertion in model container [2021-11-23 17:40:36,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:39:33" (2/3) ... [2021-11-23 17:40:36,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69363636 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:40:36, skipping insertion in model container [2021-11-23 17:40:36,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:40:36" (3/3) ... [2021-11-23 17:40:36,766 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem07_label17.c [2021-11-23 17:40:36,773 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:40:36,773 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:40:36,873 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:40:36,882 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 17:40:36,882 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:40:37,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 10257 states, 10255 states have (on average 1.9892735251097027) internal successors, (20400), 10256 states have internal predecessors, (20400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:40:38,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10117 [2021-11-23 17:40:38,696 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:40:38,705 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] [2021-11-23 17:40:38,709 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:40:38,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:40:38,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1450475218, now seen corresponding path program 1 times [2021-11-23 17:40:38,904 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:40:38,904 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2107163307] [2021-11-23 17:40:38,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:40:38,912 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:40:38,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:40:38,931 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:40:38,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f92d24a-b694-4d32-862c-77e7a3d45c0c/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:40:44,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:40:44,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 10254 conjuncts, 102 conjunts are in the unsatisfiable core [2021-11-23 17:40:45,381 INFO L286 TraceCheckSpWp]: Computing forward predicates...