./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem07_label25.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_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/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_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label25.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/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_b55f114c-a7b1-4142-bef7-8b906d847989/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 9c325216d27435ab9d61142a55a6376950293cfa4a3a29ba130107c87c7efd14 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:27:17,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:27:17,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:27:17,887 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:27:17,888 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:27:17,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:27:17,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:27:17,893 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:27:17,896 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:27:17,897 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:27:17,898 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:27:17,900 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:27:17,900 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:27:17,902 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:27:17,903 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:27:17,905 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:27:17,906 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:27:17,908 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:27:17,910 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:27:17,913 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:27:17,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:27:17,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:27:17,919 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:27:17,920 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:27:17,925 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:27:17,925 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:27:17,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:27:17,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:27:17,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:27:17,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:27:17,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:27:17,935 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:27:17,937 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:27:17,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:27:17,941 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:27:17,943 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:27:17,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:27:17,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:27:17,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:27:17,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:27:17,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:27:17,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:27:18,003 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:27:18,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:27:18,006 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:27:18,007 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:27:18,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:27:18,014 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:27:18,015 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:27:18,015 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:27:18,015 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:27:18,016 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:27:18,017 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:27:18,017 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:27:18,018 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:27:18,018 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:27:18,018 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:27:18,018 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:27:18,019 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:27:18,019 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:27:18,020 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:27:18,021 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:27:18,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:27:18,021 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:27:18,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:27:18,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:27:18,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:27:18,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:27:18,024 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:27:18,024 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:27:18,024 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:27:18,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:27:18,025 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:27:18,025 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:27:18,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:27:18,026 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:27:18,026 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:27:18,026 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:27:18,027 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:27:18,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:27:18,027 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:27:18,027 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:27:18,028 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:27:18,028 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_b55f114c-a7b1-4142-bef7-8b906d847989/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c325216d27435ab9d61142a55a6376950293cfa4a3a29ba130107c87c7efd14 [2021-11-23 17:27:18,345 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:27:18,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:27:18,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:27:18,370 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:27:18,371 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:27:18,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem07_label25.c [2021-11-23 17:27:18,439 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/data/0ad085f6a/384e6c89455749798e789ed8b8fd7bb3/FLAG1ac8ed424 [2021-11-23 17:27:21,309 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:27:21,311 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/sv-benchmarks/c/eca-rers2012/Problem07_label25.c [2021-11-23 17:27:21,465 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/data/0ad085f6a/384e6c89455749798e789ed8b8fd7bb3/FLAG1ac8ed424 [2021-11-23 17:27:21,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/data/0ad085f6a/384e6c89455749798e789ed8b8fd7bb3 [2021-11-23 17:27:21,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:27:21,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:27:21,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:27:21,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:27:21,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:27:21,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:27:21" (1/1) ... [2021-11-23 17:27:21,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6617ba36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:21, skipping insertion in model container [2021-11-23 17:27:21,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:27:21" (1/1) ... [2021-11-23 17:27:21,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:27:22,935 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:27:35,027 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_b55f114c-a7b1-4142-bef7-8b906d847989/sv-benchmarks/c/eca-rers2012/Problem07_label25.c[2775977,2775990] [2021-11-23 17:27:35,094 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:27:35,103 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:27:42,234 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_b55f114c-a7b1-4142-bef7-8b906d847989/sv-benchmarks/c/eca-rers2012/Problem07_label25.c[2775977,2775990] [2021-11-23 17:27:42,237 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:27:43,067 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:27:43,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:43 WrapperNode [2021-11-23 17:27:43,068 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:27:43,069 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:27:43,069 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:27:43,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:27:43,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:43" (1/1) ... [2021-11-23 17:27:43,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:43" (1/1) ... [2021-11-23 17:27:46,761 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83773 [2021-11-23 17:27:46,762 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:27:46,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:27:46,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:27:46,763 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:27:46,771 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:43" (1/1) ... [2021-11-23 17:27:46,771 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:43" (1/1) ... [2021-11-23 17:27:47,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:43" (1/1) ... [2021-11-23 17:27:47,257 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:43" (1/1) ... [2021-11-23 17:27:48,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:43" (1/1) ... [2021-11-23 17:27:48,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:43" (1/1) ... [2021-11-23 17:27:49,371 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:43" (1/1) ... [2021-11-23 17:27:50,324 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:27:50,325 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:27:50,325 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:27:50,325 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:27:50,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:27:43" (1/1) ... [2021-11-23 17:27:50,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:27:50,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:27:50,362 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:27:50,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:27:50,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:27:50,400 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:27:50,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:27:50,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:27:50,531 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:27:50,533 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:28:28,387 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:28:28,512 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 17:28:28,518 INFO L158 Benchmark]: Toolchain (without parser) took 66604.76ms. Allocated memory was 237.0MB in the beginning and 8.4GB in the end (delta: 8.1GB). Free memory was 81.5MB in the beginning and 6.8GB in the end (delta: -6.7GB). Peak memory consumption was 1.6GB. Max. memory is 16.1GB. [2021-11-23 17:28:28,519 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory was 54.2MB in the beginning and 54.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:28:28,520 INFO L158 Benchmark]: CACSL2BoogieTranslator took 21153.70ms. Allocated memory was 237.0MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 81.1MB in the beginning and 752.1MB in the end (delta: -671.1MB). Peak memory consumption was 734.0MB. Max. memory is 16.1GB. [2021-11-23 17:28:28,521 INFO L158 Benchmark]: Boogie Procedure Inliner took 3693.38ms. Allocated memory was 1.5GB in the beginning and 2.7GB in the end (delta: 1.2GB). Free memory was 752.1MB in the beginning and 1.8GB in the end (delta: -1.0GB). Peak memory consumption was 406.8MB. Max. memory is 16.1GB. [2021-11-23 17:28:28,521 INFO L158 Benchmark]: Boogie Preprocessor took 3561.10ms. Allocated memory was 2.7GB in the beginning and 5.4GB in the end (delta: 2.7GB). Free memory was 1.8GB in the beginning and 4.2GB in the end (delta: -2.5GB). Peak memory consumption was 444.6MB. Max. memory is 16.1GB. [2021-11-23 17:28:28,522 INFO L158 Benchmark]: RCFGBuilder took 38190.51ms. Allocated memory was 5.4GB in the beginning and 8.4GB in the end (delta: 3.0GB). Free memory was 4.2GB in the beginning and 6.8GB in the end (delta: -2.6GB). Peak memory consumption was 639.6MB. Max. memory is 16.1GB. [2021-11-23 17:28:28,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 96.5MB. Free memory was 54.2MB in the beginning and 54.1MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 21153.70ms. Allocated memory was 237.0MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 81.1MB in the beginning and 752.1MB in the end (delta: -671.1MB). Peak memory consumption was 734.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 3693.38ms. Allocated memory was 1.5GB in the beginning and 2.7GB in the end (delta: 1.2GB). Free memory was 752.1MB in the beginning and 1.8GB in the end (delta: -1.0GB). Peak memory consumption was 406.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 3561.10ms. Allocated memory was 2.7GB in the beginning and 5.4GB in the end (delta: 2.7GB). Free memory was 1.8GB in the beginning and 4.2GB in the end (delta: -2.5GB). Peak memory consumption was 444.6MB. Max. memory is 16.1GB. * RCFGBuilder took 38190.51ms. Allocated memory was 5.4GB in the beginning and 8.4GB in the end (delta: 3.0GB). Free memory was 4.2GB in the beginning and 6.8GB in the end (delta: -2.6GB). Peak memory consumption was 639.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:28:28,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/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_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/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_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem07_label25.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/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_b55f114c-a7b1-4142-bef7-8b906d847989/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 9c325216d27435ab9d61142a55a6376950293cfa4a3a29ba130107c87c7efd14 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:28:30,999 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:28:31,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:28:31,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:28:31,064 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:28:31,069 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:28:31,071 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:28:31,076 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:28:31,080 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:28:31,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:28:31,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:28:31,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:28:31,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:28:31,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:28:31,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:28:31,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:28:31,105 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:28:31,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:28:31,109 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:28:31,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:28:31,121 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:28:31,122 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:28:31,125 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:28:31,128 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:28:31,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:28:31,137 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:28:31,138 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:28:31,140 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:28:31,140 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:28:31,142 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:28:31,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:28:31,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:28:31,145 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:28:31,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:28:31,147 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:28:31,148 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:28:31,149 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:28:31,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:28:31,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:28:31,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:28:31,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:28:31,165 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:28:31,193 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:28:31,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:28:31,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:28:31,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:28:31,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:28:31,196 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:28:31,196 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:28:31,196 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:28:31,196 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:28:31,197 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:28:31,197 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:28:31,197 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:28:31,198 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:28:31,198 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:28:31,199 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:28:31,199 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:28:31,199 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:28:31,200 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:28:31,200 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:28:31,200 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:28:31,200 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:28:31,201 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:28:31,201 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:28:31,201 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:28:31,201 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:28:31,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:28:31,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:28:31,202 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:28:31,202 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:28:31,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:28:31,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:28:31,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:28:31,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:28:31,204 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:28:31,204 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:28:31,204 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:28:31,204 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:28:31,205 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:28:31,205 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_b55f114c-a7b1-4142-bef7-8b906d847989/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c325216d27435ab9d61142a55a6376950293cfa4a3a29ba130107c87c7efd14 [2021-11-23 17:28:31,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:28:31,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:28:31,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:28:31,635 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:28:31,636 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:28:31,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem07_label25.c [2021-11-23 17:28:31,704 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/data/dbabdfc45/8ac3e64b35d741a7b377bbf99e942835/FLAGe2b4a2b0c [2021-11-23 17:28:35,209 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:28:35,210 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/sv-benchmarks/c/eca-rers2012/Problem07_label25.c [2021-11-23 17:28:35,428 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/data/dbabdfc45/8ac3e64b35d741a7b377bbf99e942835/FLAGe2b4a2b0c [2021-11-23 17:28:35,651 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/data/dbabdfc45/8ac3e64b35d741a7b377bbf99e942835 [2021-11-23 17:28:35,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:28:35,655 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:28:35,657 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:28:35,657 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:28:35,677 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:28:35,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:28:35" (1/1) ... [2021-11-23 17:28:35,682 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@477c75a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:35, skipping insertion in model container [2021-11-23 17:28:35,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:28:35" (1/1) ... [2021-11-23 17:28:35,693 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:28:36,682 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:28:48,951 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_b55f114c-a7b1-4142-bef7-8b906d847989/sv-benchmarks/c/eca-rers2012/Problem07_label25.c[2775977,2775990] [2021-11-23 17:28:49,015 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:28:49,023 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:28:56,071 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_b55f114c-a7b1-4142-bef7-8b906d847989/sv-benchmarks/c/eca-rers2012/Problem07_label25.c[2775977,2775990] [2021-11-23 17:28:56,076 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:28:57,157 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:28:57,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:57 WrapperNode [2021-11-23 17:28:57,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:28:57,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:28:57,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:28:57,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:28:57,164 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:57" (1/1) ... [2021-11-23 17:28:57,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:57" (1/1) ... [2021-11-23 17:29:00,700 INFO L137 Inliner]: procedures = 59, calls = 53, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 83726 [2021-11-23 17:29:00,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:29:00,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:29:00,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:29:00,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:29:00,712 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:57" (1/1) ... [2021-11-23 17:29:00,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:57" (1/1) ... [2021-11-23 17:29:01,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:57" (1/1) ... [2021-11-23 17:29:01,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:57" (1/1) ... [2021-11-23 17:29:02,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:57" (1/1) ... [2021-11-23 17:29:02,939 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:57" (1/1) ... [2021-11-23 17:29:03,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:57" (1/1) ... [2021-11-23 17:29:03,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:29:03,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:29:03,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:29:03,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:29:03,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:57" (1/1) ... [2021-11-23 17:29:03,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:29:03,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:29:03,934 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:29:03,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:29:03,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:29:03,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:29:03,970 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:29:03,970 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:29:04,104 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:29:04,106 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:29:58,365 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:29:58,449 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:29:58,449 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:29:58,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:29:58 BoogieIcfgContainer [2021-11-23 17:29:58,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:29:58,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:29:58,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:29:58,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:29:58,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:28:35" (1/3) ... [2021-11-23 17:29:58,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e296cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:29:58, skipping insertion in model container [2021-11-23 17:29:58,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:57" (2/3) ... [2021-11-23 17:29:58,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e296cd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:29:58, skipping insertion in model container [2021-11-23 17:29:58,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:29:58" (3/3) ... [2021-11-23 17:29:58,470 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem07_label25.c [2021-11-23 17:29:58,475 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:29:58,476 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:29:58,563 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:29:58,570 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 17:29:58,571 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:29:58,744 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 17:29:59,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10141 [2021-11-23 17:29:59,709 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:29:59,717 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] [2021-11-23 17:29:59,721 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:29:59,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:29:59,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1462024626, now seen corresponding path program 1 times [2021-11-23 17:29:59,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:29:59,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118531794] [2021-11-23 17:29:59,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:29:59,866 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:29:59,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:29:59,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:29:59,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b55f114c-a7b1-4142-bef7-8b906d847989/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:30:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:30:04,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 10278 conjuncts, 102 conjunts are in the unsatisfiable core [2021-11-23 17:30:05,298 INFO L286 TraceCheckSpWp]: Computing forward predicates...