./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-programs/Problem102_label21.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_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/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_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem102_label21.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/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_74f0dcfd-2509-4203-bef0-1e78999b92a9/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 a69148b1deeb299dbf694c1662aa54bbeb02ea9750beae258bf5829fbeddb4c2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:28:00,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:28:00,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:28:00,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:28:00,128 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:28:00,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:28:00,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:28:00,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:28:00,141 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:28:00,146 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:28:00,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:28:00,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:28:00,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:28:00,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:28:00,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:28:00,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:28:00,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:28:00,165 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:28:00,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:28:00,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:28:00,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:28:00,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:28:00,186 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:28:00,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:28:00,196 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:28:00,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:28:00,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:28:00,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:28:00,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:28:00,202 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:28:00,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:28:00,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:28:00,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:28:00,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:28:00,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:28:00,209 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:28:00,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:28:00,210 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:28:00,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:28:00,211 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:28:00,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:28:00,212 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:28:00,259 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:28:00,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:28:00,260 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:28:00,260 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:28:00,261 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:28:00,261 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:28:00,261 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:28:00,262 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:28:00,262 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:28:00,262 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:28:00,263 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:28:00,264 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:28:00,264 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:28:00,264 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:28:00,264 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:28:00,265 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:28:00,265 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:28:00,265 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:28:00,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:28:00,266 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:28:00,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:28:00,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:28:00,267 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:28:00,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:28:00,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:28:00,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:28:00,268 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:28:00,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:28:00,268 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:28:00,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:28:00,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:28:00,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:28:00,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:28:00,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:28:00,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:28:00,270 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:28:00,270 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:28:00,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:28:00,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:28:00,271 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:28:00,271 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:28:00,271 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_74f0dcfd-2509-4203-bef0-1e78999b92a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a69148b1deeb299dbf694c1662aa54bbeb02ea9750beae258bf5829fbeddb4c2 [2021-11-23 17:28:00,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:28:00,621 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:28:00,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:28:00,625 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:28:00,626 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:28:00,628 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-programs/Problem102_label21.c [2021-11-23 17:28:00,702 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/data/3ed2b820a/003b37f2f9564dff888eb3b63fa1ef92/FLAG3203d7f3c [2021-11-23 17:28:05,016 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:28:05,017 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/sv-benchmarks/c/eca-programs/Problem102_label21.c [2021-11-23 17:28:05,296 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/data/3ed2b820a/003b37f2f9564dff888eb3b63fa1ef92/FLAG3203d7f3c [2021-11-23 17:28:05,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/data/3ed2b820a/003b37f2f9564dff888eb3b63fa1ef92 [2021-11-23 17:28:05,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:28:05,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:28:05,716 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:28:05,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:28:05,719 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:28:05,720 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:28:05" (1/1) ... [2021-11-23 17:28:05,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@729fef34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:05, skipping insertion in model container [2021-11-23 17:28:05,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:28:05" (1/1) ... [2021-11-23 17:28:05,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:28:07,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:28:33,560 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_74f0dcfd-2509-4203-bef0-1e78999b92a9/sv-benchmarks/c/eca-programs/Problem102_label21.c[5717280,5717293] [2021-11-23 17:28:33,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:28:33,693 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:28:47,807 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_74f0dcfd-2509-4203-bef0-1e78999b92a9/sv-benchmarks/c/eca-programs/Problem102_label21.c[5717280,5717293] [2021-11-23 17:28:47,809 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:28:52,742 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:28:52,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:52 WrapperNode [2021-11-23 17:28:52,743 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:28:52,744 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:28:52,744 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:28:52,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:28:52,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:52" (1/1) ... [2021-11-23 17:28:54,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:52" (1/1) ... [2021-11-23 17:28:59,427 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184295 [2021-11-23 17:28:59,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:28:59,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:28:59,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:28:59,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:28:59,441 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:52" (1/1) ... [2021-11-23 17:28:59,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:52" (1/1) ... [2021-11-23 17:29:00,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:52" (1/1) ... [2021-11-23 17:29:00,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:52" (1/1) ... [2021-11-23 17:29:03,389 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:52" (1/1) ... [2021-11-23 17:29:03,808 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:52" (1/1) ... [2021-11-23 17:29:04,105 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:52" (1/1) ... [2021-11-23 17:29:04,851 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:29:04,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:29:04,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:29:04,852 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:29:04,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:28:52" (1/1) ... [2021-11-23 17:29:04,860 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:29:04,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:29:04,886 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:29:04,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:29:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:29:04,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:29:04,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:29:04,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:29:05,210 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:29:05,212 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:30:12,503 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:30:12,774 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 17:30:12,781 INFO L158 Benchmark]: Toolchain (without parser) took 127064.02ms. Allocated memory was 612.4MB in the beginning and 12.3GB in the end (delta: 11.7GB). Free memory was 321.7MB in the beginning and 8.6GB in the end (delta: -8.3GB). Peak memory consumption was 3.8GB. Max. memory is 16.1GB. [2021-11-23 17:30:12,781 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:30:12,784 INFO L158 Benchmark]: CACSL2BoogieTranslator took 47027.60ms. Allocated memory was 612.4MB in the beginning and 7.1GB in the end (delta: 6.5GB). Free memory was 321.7MB in the beginning and 5.2GB in the end (delta: -4.8GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. [2021-11-23 17:30:12,785 INFO L158 Benchmark]: Boogie Procedure Inliner took 6683.94ms. Allocated memory was 7.1GB in the beginning and 10.0GB in the end (delta: 2.9GB). Free memory was 5.2GB in the beginning and 7.4GB in the end (delta: -2.2GB). Peak memory consumption was 856.7MB. Max. memory is 16.1GB. [2021-11-23 17:30:12,786 INFO L158 Benchmark]: Boogie Preprocessor took 5422.56ms. Allocated memory is still 10.0GB. Free memory was 7.4GB in the beginning and 6.8GB in the end (delta: 602.9MB). Peak memory consumption was 653.3MB. Max. memory is 16.1GB. [2021-11-23 17:30:12,788 INFO L158 Benchmark]: RCFGBuilder took 67925.56ms. Allocated memory was 10.0GB in the beginning and 12.3GB in the end (delta: 2.3GB). Free memory was 6.8GB in the beginning and 8.6GB in the end (delta: -1.9GB). Peak memory consumption was 855.6MB. Max. memory is 16.1GB. [2021-11-23 17:30:12,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 100.7MB. Free memory is still 79.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 47027.60ms. Allocated memory was 612.4MB in the beginning and 7.1GB in the end (delta: 6.5GB). Free memory was 321.7MB in the beginning and 5.2GB in the end (delta: -4.8GB). Peak memory consumption was 2.7GB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 6683.94ms. Allocated memory was 7.1GB in the beginning and 10.0GB in the end (delta: 2.9GB). Free memory was 5.2GB in the beginning and 7.4GB in the end (delta: -2.2GB). Peak memory consumption was 856.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 5422.56ms. Allocated memory is still 10.0GB. Free memory was 7.4GB in the beginning and 6.8GB in the end (delta: 602.9MB). Peak memory consumption was 653.3MB. Max. memory is 16.1GB. * RCFGBuilder took 67925.56ms. Allocated memory was 10.0GB in the beginning and 12.3GB in the end (delta: 2.3GB). Free memory was 6.8GB in the beginning and 8.6GB in the end (delta: -1.9GB). Peak memory consumption was 855.6MB. 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 17:30:12,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/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_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-programs/Problem102_label21.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/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_74f0dcfd-2509-4203-bef0-1e78999b92a9/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 a69148b1deeb299dbf694c1662aa54bbeb02ea9750beae258bf5829fbeddb4c2 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:30:15,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:30:15,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:30:15,441 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:30:15,442 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:30:15,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:30:15,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:30:15,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:30:15,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:30:15,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:30:15,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:30:15,470 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:30:15,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:30:15,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:30:15,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:30:15,474 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:30:15,475 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:30:15,476 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:30:15,478 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:30:15,480 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:30:15,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:30:15,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:30:15,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:30:15,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:30:15,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:30:15,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:30:15,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:30:15,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:30:15,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:30:15,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:30:15,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:30:15,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:30:15,496 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:30:15,497 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:30:15,498 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:30:15,498 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:30:15,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:30:15,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:30:15,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:30:15,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:30:15,508 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:30:15,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:30:15,548 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:30:15,548 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:30:15,549 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:30:15,549 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:30:15,550 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:30:15,550 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:30:15,551 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:30:15,551 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:30:15,551 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:30:15,551 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:30:15,552 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:30:15,553 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:30:15,554 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:30:15,555 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:30:15,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:30:15,555 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:30:15,555 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:30:15,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:30:15,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:30:15,556 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:30:15,556 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:30:15,556 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:30:15,557 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:30:15,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:30:15,557 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:30:15,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:30:15,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:30:15,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:30:15,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:30:15,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:30:15,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:30:15,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:30:15,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:30:15,560 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:30:15,560 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:30:15,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:30:15,560 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:30:15,561 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:30:15,561 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_74f0dcfd-2509-4203-bef0-1e78999b92a9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a69148b1deeb299dbf694c1662aa54bbeb02ea9750beae258bf5829fbeddb4c2 [2021-11-23 17:30:15,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:30:16,002 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:30:16,005 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:30:16,006 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:30:16,011 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:30:16,012 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-programs/Problem102_label21.c [2021-11-23 17:30:16,082 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/data/dbca5fbc0/2e6b5b6ee18c462a8483557f8b74962c/FLAG502de9ab6 [2021-11-23 17:30:20,246 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:30:20,246 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/sv-benchmarks/c/eca-programs/Problem102_label21.c [2021-11-23 17:30:20,518 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/data/dbca5fbc0/2e6b5b6ee18c462a8483557f8b74962c/FLAG502de9ab6 [2021-11-23 17:30:20,555 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/data/dbca5fbc0/2e6b5b6ee18c462a8483557f8b74962c [2021-11-23 17:30:20,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:30:20,562 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:30:20,564 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:30:20,564 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:30:20,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:30:20,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:30:20" (1/1) ... [2021-11-23 17:30:20,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f9437b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:30:20, skipping insertion in model container [2021-11-23 17:30:20,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:30:20" (1/1) ... [2021-11-23 17:30:20,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:30:22,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:30:48,232 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_74f0dcfd-2509-4203-bef0-1e78999b92a9/sv-benchmarks/c/eca-programs/Problem102_label21.c[5717280,5717293] [2021-11-23 17:30:48,344 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:30:48,356 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:31:01,873 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_74f0dcfd-2509-4203-bef0-1e78999b92a9/sv-benchmarks/c/eca-programs/Problem102_label21.c[5717280,5717293] [2021-11-23 17:31:01,875 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:31:06,539 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:31:06,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:06 WrapperNode [2021-11-23 17:31:06,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:31:06,541 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:31:06,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:31:06,541 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:31:06,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:06" (1/1) ... [2021-11-23 17:31:08,032 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:06" (1/1) ... [2021-11-23 17:31:13,373 INFO L137 Inliner]: procedures = 95, calls = 89, calls flagged for inlining = 84, calls inlined = 84, statements flattened = 184212 [2021-11-23 17:31:13,374 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:31:13,374 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:31:13,375 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:31:13,375 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:31:13,384 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:06" (1/1) ... [2021-11-23 17:31:13,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:06" (1/1) ... [2021-11-23 17:31:14,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:06" (1/1) ... [2021-11-23 17:31:14,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:06" (1/1) ... [2021-11-23 17:31:16,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:06" (1/1) ... [2021-11-23 17:31:17,329 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:06" (1/1) ... [2021-11-23 17:31:18,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:06" (1/1) ... [2021-11-23 17:31:19,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:31:19,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:31:19,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:31:19,285 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:31:19,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:06" (1/1) ... [2021-11-23 17:31:19,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:31:19,307 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:31:19,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:31:19,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:31:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:31:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:31:19,376 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:31:19,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:31:19,610 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:31:19,611 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:32:57,623 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:32:57,735 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:32:57,735 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:32:57,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:32:57 BoogieIcfgContainer [2021-11-23 17:32:57,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:32:57,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:32:57,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:32:57,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:32:57,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:30:20" (1/3) ... [2021-11-23 17:32:57,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3bb9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:32:57, skipping insertion in model container [2021-11-23 17:32:57,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:31:06" (2/3) ... [2021-11-23 17:32:57,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4f3bb9d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:32:57, skipping insertion in model container [2021-11-23 17:32:57,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:32:57" (3/3) ... [2021-11-23 17:32:57,767 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem102_label21.c [2021-11-23 17:32:57,773 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:32:57,773 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:32:57,878 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:32:57,885 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 17:32:57,886 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:32:58,240 INFO L276 IsEmpty]: Start isEmpty. Operand has 23215 states, 23213 states have (on average 1.8828673588075646) internal successors, (43707), 23214 states have internal predecessors, (43707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 17:33:00,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17922 [2021-11-23 17:33:00,668 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:33:00,685 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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[2021-11-23 17:33:00,692 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:33:00,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:33:00,723 INFO L85 PathProgramCache]: Analyzing trace with hash -751052722, now seen corresponding path program 1 times [2021-11-23 17:33:00,899 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:33:00,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2096032508] [2021-11-23 17:33:00,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:33:00,912 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:33:00,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:33:00,916 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:33:00,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:33:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:33:08,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 18138 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:33:08,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:34:13,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:34:13,230 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:34:13,231 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:34:13,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2096032508] [2021-11-23 17:34:13,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2096032508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:34:13,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:34:13,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:34:13,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325909450] [2021-11-23 17:34:13,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:34:13,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:34:13,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:34:13,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:34:13,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:34:13,371 INFO L87 Difference]: Start difference. First 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) Second operand has 3 states, 3 states have (on average 5973.666666666667) internal successors, (17921), 2 states have internal predecessors, (17921), 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 17:36:11,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:36:11,957 INFO L93 Difference]: Finished difference Result 68012 states and 129094 transitions. [2021-11-23 17:36:11,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:36:11,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5973.666666666667) internal successors, (17921), 2 states have internal predecessors, (17921), 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) Word has length 17921 [2021-11-23 17:36:12,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:36:12,316 INFO L225 Difference]: With dead ends: 68012 [2021-11-23 17:36:12,316 INFO L226 Difference]: Without dead ends: 44703 [2021-11-23 17:36:12,364 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17920 GetRequests, 17919 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:36:12,373 INFO L933 BasicCegarLoop]: 16838 mSDtfsCounter, 5647 mSDsluCounter, 6179 mSDsCounter, 0 mSdLazyCounter, 57116 mSolverCounterSat, 16109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 96.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5647 SdHoareTripleChecker+Valid, 23017 SdHoareTripleChecker+Invalid, 73225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 16109 IncrementalHoareTripleChecker+Valid, 57116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 116.4s IncrementalHoareTripleChecker+Time [2021-11-23 17:36:12,375 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5647 Valid, 23017 Invalid, 73225 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [16109 Valid, 57116 Invalid, 0 Unknown, 0 Unchecked, 116.4s Time] [2021-11-23 17:36:12,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44703 states. [2021-11-23 17:36:13,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44703 to 43026. [2021-11-23 17:36:13,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43026 states, 43025 states have (on average 1.8327251597908192) internal successors, (78853), 43025 states have internal predecessors, (78853), 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 17:36:13,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43026 states to 43026 states and 78853 transitions. [2021-11-23 17:36:13,892 INFO L78 Accepts]: Start accepts. Automaton has 43026 states and 78853 transitions. Word has length 17921 [2021-11-23 17:36:13,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:36:13,938 INFO L470 AbstractCegarLoop]: Abstraction has 43026 states and 78853 transitions. [2021-11-23 17:36:13,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5973.666666666667) internal successors, (17921), 2 states have internal predecessors, (17921), 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 17:36:13,946 INFO L276 IsEmpty]: Start isEmpty. Operand 43026 states and 78853 transitions. [2021-11-23 17:36:17,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17928 [2021-11-23 17:36:17,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:36:17,067 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2021-11-23 17:36:17,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 17:36:17,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:36:17,272 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:36:17,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:36:17,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1972181064, now seen corresponding path program 1 times [2021-11-23 17:36:17,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:36:17,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [169327977] [2021-11-23 17:36:17,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:36:17,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:36:17,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:36:17,451 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:36:17,513 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 17:36:24,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:36:24,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 18170 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 17:36:24,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:36:47,065 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:36:47,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:36:47,066 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:36:47,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [169327977] [2021-11-23 17:36:47,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [169327977] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:36:47,067 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:36:47,071 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:36:47,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699880598] [2021-11-23 17:36:47,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:36:47,107 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:36:47,108 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:36:47,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:36:47,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:36:47,118 INFO L87 Difference]: Start difference. First operand 43026 states and 78853 transitions. Second operand has 3 states, 3 states have (on average 5975.666666666667) internal successors, (17927), 2 states have internal predecessors, (17927), 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 17:38:59,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:38:59,602 INFO L93 Difference]: Finished difference Result 122538 states and 227405 transitions. [2021-11-23 17:38:59,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:38:59,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5975.666666666667) internal successors, (17927), 2 states have internal predecessors, (17927), 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) Word has length 17927 [2021-11-23 17:38:59,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:38:59,829 INFO L225 Difference]: With dead ends: 122538 [2021-11-23 17:38:59,829 INFO L226 Difference]: Without dead ends: 79514 [2021-11-23 17:38:59,891 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17926 GetRequests, 17925 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:38:59,893 INFO L933 BasicCegarLoop]: 23067 mSDtfsCounter, 19020 mSDsluCounter, 2823 mSDsCounter, 0 mSdLazyCounter, 56528 mSolverCounterSat, 20597 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19020 SdHoareTripleChecker+Valid, 25890 SdHoareTripleChecker+Invalid, 77125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 20597 IncrementalHoareTripleChecker+Valid, 56528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 130.3s IncrementalHoareTripleChecker+Time [2021-11-23 17:38:59,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19020 Valid, 25890 Invalid, 77125 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [20597 Valid, 56528 Invalid, 0 Unknown, 0 Unchecked, 130.3s Time] [2021-11-23 17:38:59,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79514 states. [2021-11-23 17:39:01,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79514 to 79310. [2021-11-23 17:39:01,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79310 states, 79309 states have (on average 1.5167761540304379) internal successors, (120294), 79309 states have internal predecessors, (120294), 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 17:39:01,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79310 states to 79310 states and 120294 transitions. [2021-11-23 17:39:01,552 INFO L78 Accepts]: Start accepts. Automaton has 79310 states and 120294 transitions. Word has length 17927 [2021-11-23 17:39:01,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:39:01,558 INFO L470 AbstractCegarLoop]: Abstraction has 79310 states and 120294 transitions. [2021-11-23 17:39:01,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5975.666666666667) internal successors, (17927), 2 states have internal predecessors, (17927), 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 17:39:01,563 INFO L276 IsEmpty]: Start isEmpty. Operand 79310 states and 120294 transitions. [2021-11-23 17:39:04,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17937 [2021-11-23 17:39:04,223 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:39:04,235 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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[2021-11-23 17:39:04,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-23 17:39:04,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:39:04,452 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:39:04,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:39:04,463 INFO L85 PathProgramCache]: Analyzing trace with hash -931796662, now seen corresponding path program 1 times [2021-11-23 17:39:04,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:39:04,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [494356778] [2021-11-23 17:39:04,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:39:04,607 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:39:04,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:39:04,625 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:39:04,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_74f0dcfd-2509-4203-bef0-1e78999b92a9/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process