./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem102_label28.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_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/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_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem102_label28.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/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_a430f7de-8ee5-49d5-9d09-47491c99da75/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 c05b06d8ca1c828b9c7a837df3e765303fe398ab248bb01bdd83ba2b0a799b6b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:45:07,742 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:45:07,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:45:07,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:45:07,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:45:07,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:45:07,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:45:07,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:45:07,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:45:07,817 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:45:07,818 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:45:07,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:45:07,821 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:45:07,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:45:07,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:45:07,830 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:45:07,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:45:07,833 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:45:07,835 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:45:07,842 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:45:07,844 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:45:07,846 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:45:07,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:45:07,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:45:07,858 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:45:07,858 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:45:07,859 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:45:07,861 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:45:07,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:45:07,863 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:45:07,863 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:45:07,864 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:45:07,866 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:45:07,867 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:45:07,869 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:45:07,869 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:45:07,869 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:45:07,870 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:45:07,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:45:07,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:45:07,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:45:07,872 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 16:45:07,915 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:45:07,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:45:07,916 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:45:07,916 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:45:07,923 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:45:07,923 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:45:07,924 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:45:07,924 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:45:07,924 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:45:07,924 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 16:45:07,925 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:45:07,925 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:45:07,926 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 16:45:07,926 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 16:45:07,926 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:45:07,926 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 16:45:07,927 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 16:45:07,927 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 16:45:07,928 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:45:07,928 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:45:07,928 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 16:45:07,928 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:45:07,928 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:45:07,929 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:45:07,929 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:45:07,929 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:45:07,929 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:45:07,930 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:45:07,930 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:45:07,930 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:45:07,930 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:45:07,931 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:45:07,931 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:45:07,931 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:45:07,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:45:07,932 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:45:07,932 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 16:45:07,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 16:45:07,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:45:07,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:45:07,933 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:45:07,933 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_a430f7de-8ee5-49d5-9d09-47491c99da75/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c05b06d8ca1c828b9c7a837df3e765303fe398ab248bb01bdd83ba2b0a799b6b [2021-11-23 16:45:08,226 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:45:08,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:45:08,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:45:08,253 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:45:08,254 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:45:08,255 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-programs/Problem102_label28.c [2021-11-23 16:45:08,322 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/data/fc65644d6/91c64c4d63bc4451b5f3865162c9234b/FLAG5268a70d6 [2021-11-23 16:45:12,435 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:45:12,436 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/sv-benchmarks/c/eca-programs/Problem102_label28.c [2021-11-23 16:45:12,718 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/data/fc65644d6/91c64c4d63bc4451b5f3865162c9234b/FLAG5268a70d6 [2021-11-23 16:45:13,196 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/data/fc65644d6/91c64c4d63bc4451b5f3865162c9234b [2021-11-23 16:45:13,198 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:45:13,200 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:45:13,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:45:13,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:45:13,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:45:13,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:45:13" (1/1) ... [2021-11-23 16:45:13,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f6eca5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:13, skipping insertion in model container [2021-11-23 16:45:13,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:45:13" (1/1) ... [2021-11-23 16:45:13,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:45:14,744 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:45:40,597 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_a430f7de-8ee5-49d5-9d09-47491c99da75/sv-benchmarks/c/eca-programs/Problem102_label28.c[5711211,5711224] [2021-11-23 16:45:40,722 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:45:40,730 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:45:54,742 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_a430f7de-8ee5-49d5-9d09-47491c99da75/sv-benchmarks/c/eca-programs/Problem102_label28.c[5711211,5711224] [2021-11-23 16:45:54,751 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:45:59,518 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:45:59,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59 WrapperNode [2021-11-23 16:45:59,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:45:59,520 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:45:59,520 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:45:59,520 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:45:59,529 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:46:00,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:46:05,928 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184295 [2021-11-23 16:46:05,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:46:05,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:46:05,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:46:05,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:46:05,937 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:46:05,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:46:06,731 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:46:06,731 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:46:09,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:46:10,403 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:46:10,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:46:11,608 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:46:11,609 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:46:11,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:46:11,610 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:46:11,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:45:59" (1/1) ... [2021-11-23 16:46:11,640 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:46:11,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:46:11,663 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:46:11,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:46:11,712 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:46:11,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 16:46:11,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:46:11,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:46:11,902 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:46:11,905 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:47:20,763 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:47:21,241 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 16:47:21,248 INFO L158 Benchmark]: Toolchain (without parser) took 128045.75ms. Allocated memory was 723.5MB in the beginning and 12.6GB in the end (delta: 11.9GB). Free memory was 439.8MB in the beginning and 9.1GB in the end (delta: -8.6GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. [2021-11-23 16:47:21,250 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 102.8MB. Free memory was 77.3MB in the beginning and 77.2MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 16:47:21,252 INFO L158 Benchmark]: CACSL2BoogieTranslator took 46317.82ms. Allocated memory was 723.5MB in the beginning and 5.7GB in the end (delta: 5.0GB). Free memory was 439.8MB in the beginning and 3.7GB in the end (delta: -3.3GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. [2021-11-23 16:47:21,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 6408.70ms. Allocated memory was 5.7GB in the beginning and 8.6GB in the end (delta: 2.9GB). Free memory was 3.7GB in the beginning and 6.0GB in the end (delta: -2.3GB). Peak memory consumption was 869.3MB. Max. memory is 16.1GB. [2021-11-23 16:47:21,256 INFO L158 Benchmark]: Boogie Preprocessor took 5679.61ms. Allocated memory is still 8.6GB. Free memory was 6.0GB in the beginning and 5.5GB in the end (delta: 462.4MB). Peak memory consumption was 661.7MB. Max. memory is 16.1GB. [2021-11-23 16:47:21,258 INFO L158 Benchmark]: RCFGBuilder took 69635.14ms. Allocated memory was 8.6GB in the beginning and 12.6GB in the end (delta: 4.0GB). Free memory was 5.5GB in the beginning and 9.1GB in the end (delta: -3.6GB). Peak memory consumption was 974.1MB. Max. memory is 16.1GB. [2021-11-23 16:47:21,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 102.8MB. Free memory was 77.3MB in the beginning and 77.2MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 46317.82ms. Allocated memory was 723.5MB in the beginning and 5.7GB in the end (delta: 5.0GB). Free memory was 439.8MB in the beginning and 3.7GB in the end (delta: -3.3GB). Peak memory consumption was 2.8GB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 6408.70ms. Allocated memory was 5.7GB in the beginning and 8.6GB in the end (delta: 2.9GB). Free memory was 3.7GB in the beginning and 6.0GB in the end (delta: -2.3GB). Peak memory consumption was 869.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 5679.61ms. Allocated memory is still 8.6GB. Free memory was 6.0GB in the beginning and 5.5GB in the end (delta: 462.4MB). Peak memory consumption was 661.7MB. Max. memory is 16.1GB. * RCFGBuilder took 69635.14ms. Allocated memory was 8.6GB in the beginning and 12.6GB in the end (delta: 4.0GB). Free memory was 5.5GB in the beginning and 9.1GB in the end (delta: -3.6GB). Peak memory consumption was 974.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 16:47:21,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/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_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/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_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem102_label28.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/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_a430f7de-8ee5-49d5-9d09-47491c99da75/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 c05b06d8ca1c828b9c7a837df3e765303fe398ab248bb01bdd83ba2b0a799b6b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 16:47:24,263 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 16:47:24,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 16:47:24,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 16:47:24,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 16:47:24,333 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 16:47:24,336 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 16:47:24,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 16:47:24,345 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 16:47:24,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 16:47:24,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 16:47:24,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 16:47:24,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 16:47:24,361 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 16:47:24,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 16:47:24,369 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 16:47:24,371 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 16:47:24,373 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 16:47:24,375 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 16:47:24,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 16:47:24,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 16:47:24,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 16:47:24,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 16:47:24,397 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 16:47:24,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 16:47:24,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 16:47:24,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 16:47:24,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 16:47:24,410 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 16:47:24,412 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 16:47:24,412 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 16:47:24,413 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 16:47:24,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 16:47:24,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 16:47:24,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 16:47:24,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 16:47:24,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 16:47:24,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 16:47:24,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 16:47:24,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 16:47:24,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 16:47:24,423 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 16:47:24,471 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 16:47:24,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 16:47:24,472 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 16:47:24,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 16:47:24,474 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 16:47:24,474 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 16:47:24,474 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 16:47:24,474 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 16:47:24,475 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 16:47:24,475 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 16:47:24,476 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 16:47:24,476 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 16:47:24,478 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 16:47:24,478 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 16:47:24,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 16:47:24,479 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 16:47:24,479 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 16:47:24,479 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 16:47:24,479 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 16:47:24,479 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 16:47:24,480 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 16:47:24,480 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 16:47:24,481 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 16:47:24,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 16:47:24,481 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 16:47:24,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 16:47:24,481 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 16:47:24,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 16:47:24,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 16:47:24,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:47:24,482 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 16:47:24,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 16:47:24,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 16:47:24,484 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 16:47:24,484 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 16:47:24,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 16:47:24,484 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 16:47:24,485 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 16:47:24,485 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_a430f7de-8ee5-49d5-9d09-47491c99da75/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c05b06d8ca1c828b9c7a837df3e765303fe398ab248bb01bdd83ba2b0a799b6b [2021-11-23 16:47:24,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 16:47:24,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 16:47:24,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 16:47:24,941 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 16:47:24,942 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 16:47:24,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-programs/Problem102_label28.c [2021-11-23 16:47:25,032 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/data/9e803e62d/ce429e2e4e3949beb31c40e7ef6efa55/FLAGd28761d47 [2021-11-23 16:47:30,011 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 16:47:30,011 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/sv-benchmarks/c/eca-programs/Problem102_label28.c [2021-11-23 16:47:30,296 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/data/9e803e62d/ce429e2e4e3949beb31c40e7ef6efa55/FLAGd28761d47 [2021-11-23 16:47:30,309 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/data/9e803e62d/ce429e2e4e3949beb31c40e7ef6efa55 [2021-11-23 16:47:30,312 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 16:47:30,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 16:47:30,316 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 16:47:30,316 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 16:47:30,323 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 16:47:30,324 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:30" (1/1) ... [2021-11-23 16:47:30,325 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@536bb228 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:47:30, skipping insertion in model container [2021-11-23 16:47:30,326 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:47:30" (1/1) ... [2021-11-23 16:47:30,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 16:47:31,848 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 16:47:58,906 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_a430f7de-8ee5-49d5-9d09-47491c99da75/sv-benchmarks/c/eca-programs/Problem102_label28.c[5711211,5711224] [2021-11-23 16:47:59,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:47:59,062 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 16:48:13,786 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_a430f7de-8ee5-49d5-9d09-47491c99da75/sv-benchmarks/c/eca-programs/Problem102_label28.c[5711211,5711224] [2021-11-23 16:48:13,797 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 16:48:19,175 INFO L208 MainTranslator]: Completed translation [2021-11-23 16:48:19,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:19 WrapperNode [2021-11-23 16:48:19,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 16:48:19,176 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 16:48:19,177 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 16:48:19,177 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 16:48:19,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:19" (1/1) ... [2021-11-23 16:48:20,672 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:19" (1/1) ... [2021-11-23 16:48:25,875 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184212 [2021-11-23 16:48:25,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 16:48:25,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 16:48:25,877 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 16:48:25,877 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 16:48:25,888 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:19" (1/1) ... [2021-11-23 16:48:25,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:19" (1/1) ... [2021-11-23 16:48:27,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:19" (1/1) ... [2021-11-23 16:48:27,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:19" (1/1) ... [2021-11-23 16:48:29,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:19" (1/1) ... [2021-11-23 16:48:30,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:19" (1/1) ... [2021-11-23 16:48:30,845 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:19" (1/1) ... [2021-11-23 16:48:31,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 16:48:31,650 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 16:48:31,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 16:48:31,651 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 16:48:31,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:19" (1/1) ... [2021-11-23 16:48:31,658 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 16:48:31,668 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 16:48:31,687 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 16:48:31,701 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 16:48:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 16:48:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 16:48:31,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 16:48:31,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 16:48:31,931 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 16:48:31,933 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 16:50:21,992 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 16:50:22,117 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 16:50:22,118 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 16:50:22,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:50:22 BoogieIcfgContainer [2021-11-23 16:50:22,150 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 16:50:22,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 16:50:22,152 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 16:50:22,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 16:50:22,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:47:30" (1/3) ... [2021-11-23 16:50:22,157 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4836a335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:50:22, skipping insertion in model container [2021-11-23 16:50:22,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:48:19" (2/3) ... [2021-11-23 16:50:22,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4836a335 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:50:22, skipping insertion in model container [2021-11-23 16:50:22,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:50:22" (3/3) ... [2021-11-23 16:50:22,160 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem102_label28.c [2021-11-23 16:50:22,167 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 16:50:22,167 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 16:50:22,289 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 16:50:22,298 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 16:50:22,298 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 16:50:22,702 INFO L276 IsEmpty]: Start isEmpty. Operand has 23215 states, 23213 states have (on average 1.8828673588075646) internal successors, (43707), 23214 states have internal predecessors, (43707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 16:50:25,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17886 [2021-11-23 16:50:25,679 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 16:50:25,702 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 16:50:25,710 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 16:50:25,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 16:50:25,732 INFO L85 PathProgramCache]: Analyzing trace with hash -686840002, now seen corresponding path program 1 times [2021-11-23 16:50:25,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 16:50:25,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702425572] [2021-11-23 16:50:25,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 16:50:25,961 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 16:50:25,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 16:50:25,962 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 16:50:25,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a430f7de-8ee5-49d5-9d09-47491c99da75/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process