./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label49.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_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/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_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label49.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/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_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/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 72620f06cf213625543d30e414a89c2b8e83a12871b1ae1124ef85c707116f4d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:00:47,126 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:00:47,128 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:00:47,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:00:47,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:00:47,163 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:00:47,165 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:00:47,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:00:47,170 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:00:47,171 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:00:47,173 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:00:47,174 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:00:47,175 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:00:47,176 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:00:47,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:00:47,180 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:00:47,182 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:00:47,183 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:00:47,186 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:00:47,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:00:47,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:00:47,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:00:47,194 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:00:47,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:00:47,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:00:47,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:00:47,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:00:47,202 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:00:47,203 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:00:47,204 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:00:47,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:00:47,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:00:47,207 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:00:47,208 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:00:47,210 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:00:47,210 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:00:47,211 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:00:47,212 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:00:47,212 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:00:47,213 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:00:47,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:00:47,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 17:00:47,243 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:00:47,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:00:47,244 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:00:47,244 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:00:47,245 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:00:47,245 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:00:47,246 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:00:47,246 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:00:47,246 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:00:47,247 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 17:00:47,247 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:00:47,247 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:00:47,247 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 17:00:47,248 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 17:00:47,248 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:00:47,248 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 17:00:47,249 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 17:00:47,249 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 17:00:47,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:00:47,250 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:00:47,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 17:00:47,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:00:47,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:00:47,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:00:47,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:00:47,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:00:47,252 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:00:47,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:00:47,252 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:00:47,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:00:47,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:00:47,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:00:47,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:00:47,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:00:47,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:00:47,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:00:47,254 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 17:00:47,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 17:00:47,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:00:47,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:00:47,255 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:00:47,255 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_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72620f06cf213625543d30e414a89c2b8e83a12871b1ae1124ef85c707116f4d [2021-11-23 17:00:47,499 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:00:47,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:00:47,523 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:00:47,524 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:00:47,525 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:00:47,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem02_label49.c [2021-11-23 17:00:47,626 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/data/d0102bb76/b2293d9af6d748eeb5cb13a27d813581/FLAGc6500fbbd [2021-11-23 17:00:48,325 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:00:48,326 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/sv-benchmarks/c/eca-rers2012/Problem02_label49.c [2021-11-23 17:00:48,337 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/data/d0102bb76/b2293d9af6d748eeb5cb13a27d813581/FLAGc6500fbbd [2021-11-23 17:00:48,556 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/data/d0102bb76/b2293d9af6d748eeb5cb13a27d813581 [2021-11-23 17:00:48,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:00:48,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:00:48,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:00:48,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:00:48,573 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:00:48,574 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:00:48" (1/1) ... [2021-11-23 17:00:48,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a2c2f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:48, skipping insertion in model container [2021-11-23 17:00:48,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:00:48" (1/1) ... [2021-11-23 17:00:48,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:00:48,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:00:49,014 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_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/sv-benchmarks/c/eca-rers2012/Problem02_label49.c[19626,19639] [2021-11-23 17:00:49,070 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:00:49,078 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:00:49,174 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_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/sv-benchmarks/c/eca-rers2012/Problem02_label49.c[19626,19639] [2021-11-23 17:00:49,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:00:49,217 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:00:49,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:49 WrapperNode [2021-11-23 17:00:49,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:00:49,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:00:49,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:00:49,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:00:49,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:49" (1/1) ... [2021-11-23 17:00:49,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:49" (1/1) ... [2021-11-23 17:00:49,331 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2021-11-23 17:00:49,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:00:49,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:00:49,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:00:49,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:00:49,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:49" (1/1) ... [2021-11-23 17:00:49,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:49" (1/1) ... [2021-11-23 17:00:49,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:49" (1/1) ... [2021-11-23 17:00:49,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:49" (1/1) ... [2021-11-23 17:00:49,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:49" (1/1) ... [2021-11-23 17:00:49,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:49" (1/1) ... [2021-11-23 17:00:49,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:49" (1/1) ... [2021-11-23 17:00:49,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:00:49,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:00:49,434 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:00:49,434 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:00:49,435 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:49" (1/1) ... [2021-11-23 17:00:49,444 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:00:49,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:00:49,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:00:49,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:00:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:00:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 17:00:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:00:49,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:00:49,673 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:00:49,702 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:00:50,612 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:00:50,652 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 17:00:50,657 INFO L158 Benchmark]: Toolchain (without parser) took 2090.92ms. Allocated memory was 104.9MB in the beginning and 132.1MB in the end (delta: 27.3MB). Free memory was 70.5MB in the beginning and 56.7MB in the end (delta: 13.9MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2021-11-23 17:00:50,660 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory was 59.8MB in the beginning and 59.7MB in the end (delta: 85.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 17:00:50,661 INFO L158 Benchmark]: CACSL2BoogieTranslator took 649.93ms. Allocated memory is still 104.9MB. Free memory was 70.3MB in the beginning and 64.2MB in the end (delta: 6.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 17:00:50,663 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.90ms. Allocated memory is still 104.9MB. Free memory was 64.2MB in the beginning and 59.0MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:00:50,664 INFO L158 Benchmark]: Boogie Preprocessor took 99.70ms. Allocated memory is still 104.9MB. Free memory was 59.0MB in the beginning and 54.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:00:50,665 INFO L158 Benchmark]: RCFGBuilder took 1221.31ms. Allocated memory was 104.9MB in the beginning and 132.1MB in the end (delta: 27.3MB). Free memory was 54.7MB in the beginning and 56.7MB in the end (delta: -1.9MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2021-11-23 17:00:50,674 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 104.9MB. Free memory was 59.8MB in the beginning and 59.7MB in the end (delta: 85.9kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 649.93ms. Allocated memory is still 104.9MB. Free memory was 70.3MB in the beginning and 64.2MB in the end (delta: 6.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.90ms. Allocated memory is still 104.9MB. Free memory was 64.2MB in the beginning and 59.0MB in the end (delta: 5.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 99.70ms. Allocated memory is still 104.9MB. Free memory was 59.0MB in the beginning and 54.7MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1221.31ms. Allocated memory was 104.9MB in the beginning and 132.1MB in the end (delta: 27.3MB). Free memory was 54.7MB in the beginning and 56.7MB in the end (delta: -1.9MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 17:00:50,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/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_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/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_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label49.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/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_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/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 72620f06cf213625543d30e414a89c2b8e83a12871b1ae1124ef85c707116f4d --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 17:00:53,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 17:00:53,219 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 17:00:53,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 17:00:53,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 17:00:53,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 17:00:53,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 17:00:53,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 17:00:53,289 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 17:00:53,297 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 17:00:53,298 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 17:00:53,300 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 17:00:53,301 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 17:00:53,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 17:00:53,305 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 17:00:53,310 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 17:00:53,312 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 17:00:53,313 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 17:00:53,315 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 17:00:53,325 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 17:00:53,327 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 17:00:53,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 17:00:53,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 17:00:53,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 17:00:53,334 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 17:00:53,335 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 17:00:53,335 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 17:00:53,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 17:00:53,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 17:00:53,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 17:00:53,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 17:00:53,339 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 17:00:53,340 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 17:00:53,341 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 17:00:53,342 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 17:00:53,342 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 17:00:53,343 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 17:00:53,343 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 17:00:53,343 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 17:00:53,344 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 17:00:53,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 17:00:53,346 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 17:00:53,386 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 17:00:53,386 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 17:00:53,387 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 17:00:53,387 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 17:00:53,388 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 17:00:53,388 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 17:00:53,388 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 17:00:53,388 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 17:00:53,389 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 17:00:53,389 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 17:00:53,390 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 17:00:53,390 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 17:00:53,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 17:00:53,392 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 17:00:53,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 17:00:53,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 17:00:53,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 17:00:53,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 17:00:53,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 17:00:53,393 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 17:00:53,393 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 17:00:53,393 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 17:00:53,394 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 17:00:53,394 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 17:00:53,394 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 17:00:53,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 17:00:53,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 17:00:53,395 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 17:00:53,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 17:00:53,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:00:53,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 17:00:53,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 17:00:53,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 17:00:53,396 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 17:00:53,396 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 17:00:53,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 17:00:53,397 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 17:00:53,397 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 17:00:53,397 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_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72620f06cf213625543d30e414a89c2b8e83a12871b1ae1124ef85c707116f4d [2021-11-23 17:00:53,836 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 17:00:53,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 17:00:53,861 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 17:00:53,863 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 17:00:53,863 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 17:00:53,865 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/../../sv-benchmarks/c/eca-rers2012/Problem02_label49.c [2021-11-23 17:00:53,954 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/data/294ea416c/198e892fd91243a3ac2ed9019cd17063/FLAG36c8c90b9 [2021-11-23 17:00:54,706 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 17:00:54,707 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/sv-benchmarks/c/eca-rers2012/Problem02_label49.c [2021-11-23 17:00:54,728 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/data/294ea416c/198e892fd91243a3ac2ed9019cd17063/FLAG36c8c90b9 [2021-11-23 17:00:54,928 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/data/294ea416c/198e892fd91243a3ac2ed9019cd17063 [2021-11-23 17:00:54,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 17:00:54,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 17:00:54,936 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 17:00:54,936 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 17:00:54,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 17:00:54,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:00:54" (1/1) ... [2021-11-23 17:00:54,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e19a1a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:54, skipping insertion in model container [2021-11-23 17:00:54,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 05:00:54" (1/1) ... [2021-11-23 17:00:54,958 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 17:00:55,013 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 17:00:55,454 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_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/sv-benchmarks/c/eca-rers2012/Problem02_label49.c[19626,19639] [2021-11-23 17:00:55,496 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:00:55,512 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 17:00:55,637 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_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/sv-benchmarks/c/eca-rers2012/Problem02_label49.c[19626,19639] [2021-11-23 17:00:55,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 17:00:55,665 INFO L208 MainTranslator]: Completed translation [2021-11-23 17:00:55,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:55 WrapperNode [2021-11-23 17:00:55,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 17:00:55,667 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 17:00:55,667 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 17:00:55,668 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 17:00:55,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:55" (1/1) ... [2021-11-23 17:00:55,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:55" (1/1) ... [2021-11-23 17:00:55,763 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 666 [2021-11-23 17:00:55,764 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 17:00:55,765 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 17:00:55,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 17:00:55,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 17:00:55,777 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:55" (1/1) ... [2021-11-23 17:00:55,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:55" (1/1) ... [2021-11-23 17:00:55,793 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:55" (1/1) ... [2021-11-23 17:00:55,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:55" (1/1) ... [2021-11-23 17:00:55,827 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:55" (1/1) ... [2021-11-23 17:00:55,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:55" (1/1) ... [2021-11-23 17:00:55,861 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:55" (1/1) ... [2021-11-23 17:00:55,869 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 17:00:55,870 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 17:00:55,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 17:00:55,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 17:00:55,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:55" (1/1) ... [2021-11-23 17:00:55,892 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 17:00:55,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:00:55,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 17:00:55,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 17:00:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 17:00:55,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 17:00:55,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 17:00:55,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 17:00:56,110 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 17:00:56,112 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 17:00:57,448 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 17:00:57,460 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 17:00:57,460 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-23 17:00:57,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:00:57 BoogieIcfgContainer [2021-11-23 17:00:57,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 17:00:57,465 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 17:00:57,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 17:00:57,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 17:00:57,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 05:00:54" (1/3) ... [2021-11-23 17:00:57,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502e3ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:00:57, skipping insertion in model container [2021-11-23 17:00:57,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 05:00:55" (2/3) ... [2021-11-23 17:00:57,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@502e3ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 05:00:57, skipping insertion in model container [2021-11-23 17:00:57,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:00:57" (3/3) ... [2021-11-23 17:00:57,473 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label49.c [2021-11-23 17:00:57,479 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 17:00:57,479 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 17:00:57,558 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 17:00:57,567 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 17:00:57,567 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 17:00:57,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 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 17:00:57,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-11-23 17:00:57,608 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:00:57,609 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] [2021-11-23 17:00:57,610 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:00:57,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:00:57,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1378216101, now seen corresponding path program 1 times [2021-11-23 17:00:57,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:00:57,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [392850883] [2021-11-23 17:00:57,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:00:57,636 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:00:57,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:00:57,642 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:00:57,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 17:00:57,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:00:57,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-23 17:00:57,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:03,729 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 17:01:03,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:01:03,731 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:01:03,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [392850883] [2021-11-23 17:01:03,732 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [392850883] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:01:03,733 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:01:03,733 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-23 17:01:03,735 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523453261] [2021-11-23 17:01:03,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:01:03,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-23 17:01:03,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:01:03,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-23 17:01:03,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-23 17:01:03,783 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 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 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 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 17:01:06,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:01:06,116 INFO L93 Difference]: Finished difference Result 810 states and 1439 transitions. [2021-11-23 17:01:06,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-23 17:01:06,119 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 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 125 [2021-11-23 17:01:06,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:01:06,137 INFO L225 Difference]: With dead ends: 810 [2021-11-23 17:01:06,137 INFO L226 Difference]: Without dead ends: 505 [2021-11-23 17:01:06,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2021-11-23 17:01:06,150 INFO L933 BasicCegarLoop]: 52 mSDtfsCounter, 699 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1209 mSolverCounterSat, 338 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 1547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 338 IncrementalHoareTripleChecker+Valid, 1209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-11-23 17:01:06,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [699 Valid, 125 Invalid, 1547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [338 Valid, 1209 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-11-23 17:01:06,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2021-11-23 17:01:06,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 502. [2021-11-23 17:01:06,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 501 states have (on average 1.3832335329341316) internal successors, (693), 501 states have internal predecessors, (693), 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 17:01:06,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 693 transitions. [2021-11-23 17:01:06,240 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 693 transitions. Word has length 125 [2021-11-23 17:01:06,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:01:06,241 INFO L470 AbstractCegarLoop]: Abstraction has 502 states and 693 transitions. [2021-11-23 17:01:06,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 8 states have internal predecessors, (125), 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 17:01:06,242 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 693 transitions. [2021-11-23 17:01:06,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2021-11-23 17:01:06,261 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:01:06,262 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-23 17:01:06,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:06,482 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:01:06,482 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:01:06,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:01:06,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1798100588, now seen corresponding path program 1 times [2021-11-23 17:01:06,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:01:06,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [282362994] [2021-11-23 17:01:06,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:06,486 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:01:06,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:01:06,487 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:01:06,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 17:01:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:06,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 17:01:06,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:06,831 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-11-23 17:01:06,831 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:01:06,831 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:01:06,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [282362994] [2021-11-23 17:01:06,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [282362994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:01:06,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:01:06,833 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:01:06,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586118837] [2021-11-23 17:01:06,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:01:06,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:01:06,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:01:06,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:01:06,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:01:06,844 INFO L87 Difference]: Start difference. First operand 502 states and 693 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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 17:01:07,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:01:07,594 INFO L93 Difference]: Finished difference Result 1286 states and 1767 transitions. [2021-11-23 17:01:07,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:01:07,596 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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 139 [2021-11-23 17:01:07,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:01:07,600 INFO L225 Difference]: With dead ends: 1286 [2021-11-23 17:01:07,600 INFO L226 Difference]: Without dead ends: 646 [2021-11-23 17:01:07,603 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 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 17:01:07,604 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 142 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 17:01:07,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 129 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 17:01:07,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 646 states. [2021-11-23 17:01:07,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 646 to 645. [2021-11-23 17:01:07,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 645 states, 644 states have (on average 1.3027950310559007) internal successors, (839), 644 states have internal predecessors, (839), 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 17:01:07,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 645 states to 645 states and 839 transitions. [2021-11-23 17:01:07,641 INFO L78 Accepts]: Start accepts. Automaton has 645 states and 839 transitions. Word has length 139 [2021-11-23 17:01:07,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:01:07,641 INFO L470 AbstractCegarLoop]: Abstraction has 645 states and 839 transitions. [2021-11-23 17:01:07,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 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 17:01:07,642 INFO L276 IsEmpty]: Start isEmpty. Operand 645 states and 839 transitions. [2021-11-23 17:01:07,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-23 17:01:07,659 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:01:07,667 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2021-11-23 17:01:07,688 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:07,877 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:01:07,878 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:01:07,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:01:07,879 INFO L85 PathProgramCache]: Analyzing trace with hash -427620669, now seen corresponding path program 1 times [2021-11-23 17:01:07,880 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:01:07,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [129580169] [2021-11-23 17:01:07,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:07,881 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:01:07,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:01:07,882 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:01:07,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 17:01:08,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:08,004 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 17:01:08,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:08,235 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 17:01:08,235 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:01:08,236 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:01:08,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [129580169] [2021-11-23 17:01:08,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [129580169] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:01:08,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:01:08,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:01:08,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243527952] [2021-11-23 17:01:08,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:01:08,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 17:01:08,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:01:08,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 17:01:08,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:01:08,248 INFO L87 Difference]: Start difference. First operand 645 states and 839 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 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 17:01:09,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:01:09,493 INFO L93 Difference]: Finished difference Result 1864 states and 2499 transitions. [2021-11-23 17:01:09,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 17:01:09,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 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 151 [2021-11-23 17:01:09,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:01:09,501 INFO L225 Difference]: With dead ends: 1864 [2021-11-23 17:01:09,501 INFO L226 Difference]: Without dead ends: 1221 [2021-11-23 17:01:09,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 17:01:09,504 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 308 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-11-23 17:01:09,505 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [308 Valid, 185 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-11-23 17:01:09,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1221 states. [2021-11-23 17:01:09,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1221 to 1213. [2021-11-23 17:01:09,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 1212 states have (on average 1.268976897689769) internal successors, (1538), 1212 states have internal predecessors, (1538), 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 17:01:09,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1538 transitions. [2021-11-23 17:01:09,545 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1538 transitions. Word has length 151 [2021-11-23 17:01:09,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:01:09,545 INFO L470 AbstractCegarLoop]: Abstraction has 1213 states and 1538 transitions. [2021-11-23 17:01:09,546 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 3 states have internal predecessors, (137), 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 17:01:09,546 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1538 transitions. [2021-11-23 17:01:09,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-11-23 17:01:09,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:01:09,553 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 17:01:09,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:09,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:01:09,768 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:01:09,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:01:09,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1574811890, now seen corresponding path program 1 times [2021-11-23 17:01:09,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:01:09,771 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863077459] [2021-11-23 17:01:09,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:09,771 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:01:09,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:01:09,772 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:01:09,794 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 17:01:09,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:09,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:01:09,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:10,063 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:01:10,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:01:10,063 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:01:10,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863077459] [2021-11-23 17:01:10,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [863077459] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:01:10,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:01:10,065 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:01:10,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971754091] [2021-11-23 17:01:10,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:01:10,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:01:10,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:01:10,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:01:10,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:01:10,068 INFO L87 Difference]: Start difference. First operand 1213 states and 1538 transitions. Second operand has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 17:01:10,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:01:10,835 INFO L93 Difference]: Finished difference Result 3127 states and 4048 transitions. [2021-11-23 17:01:10,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:01:10,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 151 [2021-11-23 17:01:10,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:01:10,848 INFO L225 Difference]: With dead ends: 3127 [2021-11-23 17:01:10,848 INFO L226 Difference]: Without dead ends: 1916 [2021-11-23 17:01:10,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 149 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 17:01:10,861 INFO L933 BasicCegarLoop]: 65 mSDtfsCounter, 182 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 17:01:10,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 82 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 17:01:10,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1916 states. [2021-11-23 17:01:10,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1916 to 1776. [2021-11-23 17:01:10,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1775 states have (on average 1.2788732394366198) internal successors, (2270), 1775 states have internal predecessors, (2270), 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 17:01:10,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2270 transitions. [2021-11-23 17:01:10,921 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2270 transitions. Word has length 151 [2021-11-23 17:01:10,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:01:10,922 INFO L470 AbstractCegarLoop]: Abstraction has 1776 states and 2270 transitions. [2021-11-23 17:01:10,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.333333333333336) internal successors, (151), 3 states have internal predecessors, (151), 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 17:01:10,923 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2270 transitions. [2021-11-23 17:01:10,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2021-11-23 17:01:10,930 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:01:10,930 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 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] [2021-11-23 17:01:10,949 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:11,149 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:01:11,150 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:01:11,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:01:11,150 INFO L85 PathProgramCache]: Analyzing trace with hash 503140008, now seen corresponding path program 1 times [2021-11-23 17:01:11,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:01:11,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1924196013] [2021-11-23 17:01:11,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:11,152 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:01:11,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:01:11,153 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:01:11,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 17:01:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:11,252 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 17:01:11,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:11,857 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:01:11,857 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:01:12,479 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 14 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 17:01:12,479 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:01:12,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1924196013] [2021-11-23 17:01:12,479 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1924196013] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:01:12,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1182384197] [2021-11-23 17:01:12,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:12,480 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:01:12,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:01:12,487 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:01:12,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2021-11-23 17:01:12,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:12,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 17:01:12,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:13,896 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-23 17:01:13,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:01:13,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1182384197] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:01:13,897 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-23 17:01:13,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 5] total 10 [2021-11-23 17:01:13,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661707981] [2021-11-23 17:01:13,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:01:13,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 17:01:13,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:01:13,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 17:01:13,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-23 17:01:13,900 INFO L87 Difference]: Start difference. First operand 1776 states and 2270 transitions. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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 17:01:14,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:01:14,665 INFO L93 Difference]: Finished difference Result 4121 states and 5354 transitions. [2021-11-23 17:01:14,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 17:01:14,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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 158 [2021-11-23 17:01:14,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:01:14,683 INFO L225 Difference]: With dead ends: 4121 [2021-11-23 17:01:14,683 INFO L226 Difference]: Without dead ends: 2347 [2021-11-23 17:01:14,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-11-23 17:01:14,687 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 289 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 576 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-23 17:01:14,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [289 Valid, 53 Invalid, 576 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-23 17:01:14,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2347 states. [2021-11-23 17:01:14,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2347 to 2338. [2021-11-23 17:01:14,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2338 states, 2337 states have (on average 1.293538724860933) internal successors, (3023), 2337 states have internal predecessors, (3023), 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 17:01:14,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2338 states to 2338 states and 3023 transitions. [2021-11-23 17:01:14,756 INFO L78 Accepts]: Start accepts. Automaton has 2338 states and 3023 transitions. Word has length 158 [2021-11-23 17:01:14,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:01:14,757 INFO L470 AbstractCegarLoop]: Abstraction has 2338 states and 3023 transitions. [2021-11-23 17:01:14,758 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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 17:01:14,758 INFO L276 IsEmpty]: Start isEmpty. Operand 2338 states and 3023 transitions. [2021-11-23 17:01:14,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-11-23 17:01:14,765 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:01:14,766 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 17:01:14,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:14,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:15,177 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:01:15,177 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:01:15,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:01:15,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1387361933, now seen corresponding path program 1 times [2021-11-23 17:01:15,179 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:01:15,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461357752] [2021-11-23 17:01:15,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:15,179 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:01:15,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:01:15,182 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:01:15,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 17:01:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:15,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:01:15,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:15,540 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 50 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-11-23 17:01:15,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:01:15,540 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:01:15,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461357752] [2021-11-23 17:01:15,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461357752] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:01:15,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:01:15,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 17:01:15,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349002998] [2021-11-23 17:01:15,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:01:15,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:01:15,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:01:15,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:01:15,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:01:15,543 INFO L87 Difference]: Start difference. First operand 2338 states and 3023 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 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 17:01:16,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:01:16,155 INFO L93 Difference]: Finished difference Result 6372 states and 8311 transitions. [2021-11-23 17:01:16,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:01:16,156 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 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 170 [2021-11-23 17:01:16,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:01:16,178 INFO L225 Difference]: With dead ends: 6372 [2021-11-23 17:01:16,178 INFO L226 Difference]: Without dead ends: 4036 [2021-11-23 17:01:16,182 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 168 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 17:01:16,183 INFO L933 BasicCegarLoop]: 62 mSDtfsCounter, 183 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 17:01:16,183 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 82 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 17:01:16,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4036 states. [2021-11-23 17:01:16,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4036 to 3893. [2021-11-23 17:01:16,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3893 states, 3892 states have (on average 1.276464542651593) internal successors, (4968), 3892 states have internal predecessors, (4968), 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 17:01:16,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3893 states to 3893 states and 4968 transitions. [2021-11-23 17:01:16,309 INFO L78 Accepts]: Start accepts. Automaton has 3893 states and 4968 transitions. Word has length 170 [2021-11-23 17:01:16,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:01:16,310 INFO L470 AbstractCegarLoop]: Abstraction has 3893 states and 4968 transitions. [2021-11-23 17:01:16,310 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 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 17:01:16,310 INFO L276 IsEmpty]: Start isEmpty. Operand 3893 states and 4968 transitions. [2021-11-23 17:01:16,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-23 17:01:16,321 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:01:16,321 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 17:01:16,338 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:16,534 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:01:16,535 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:01:16,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:01:16,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1539272544, now seen corresponding path program 1 times [2021-11-23 17:01:16,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:01:16,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1138492870] [2021-11-23 17:01:16,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:16,538 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:01:16,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:01:16,540 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:01:16,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 17:01:16,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:16,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 17:01:16,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:17,329 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 14 proven. 49 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 17:01:17,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:01:17,968 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 14 proven. 49 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 17:01:17,969 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:01:17,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1138492870] [2021-11-23 17:01:17,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1138492870] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:01:17,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1796699478] [2021-11-23 17:01:17,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:17,970 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 17:01:17,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/cvc4 [2021-11-23 17:01:17,978 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 17:01:17,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2021-11-23 17:01:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:18,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 17:01:18,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:18,997 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 30 proven. 33 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 17:01:18,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 17:01:19,879 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 30 proven. 33 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 17:01:19,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1796699478] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-23 17:01:19,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612258533] [2021-11-23 17:01:19,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:19,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 17:01:19,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/z3 [2021-11-23 17:01:19,883 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 17:01:19,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-23 17:01:19,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:19,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:01:19,960 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:20,216 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-11-23 17:01:20,216 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:01:20,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612258533] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:01:20,217 INFO L186 FreeRefinementEngine]: Found 1 perfect and 4 imperfect interpolant sequences. [2021-11-23 17:01:20,217 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5, 5, 5] total 11 [2021-11-23 17:01:20,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382756756] [2021-11-23 17:01:20,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:01:20,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:01:20,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:01:20,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:01:20,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-23 17:01:20,220 INFO L87 Difference]: Start difference. First operand 3893 states and 4968 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 17:01:20,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:01:20,854 INFO L93 Difference]: Finished difference Result 7363 states and 9371 transitions. [2021-11-23 17:01:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:01:20,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 175 [2021-11-23 17:01:20,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:01:20,873 INFO L225 Difference]: With dead ends: 7363 [2021-11-23 17:01:20,873 INFO L226 Difference]: Without dead ends: 3472 [2021-11-23 17:01:20,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 870 GetRequests, 861 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-11-23 17:01:20,879 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 144 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-23 17:01:20,880 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [144 Valid, 267 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-23 17:01:20,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3472 states. [2021-11-23 17:01:20,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3472 to 2903. [2021-11-23 17:01:20,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2903 states, 2902 states have (on average 1.209855272226051) internal successors, (3511), 2902 states have internal predecessors, (3511), 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 17:01:20,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2903 states to 2903 states and 3511 transitions. [2021-11-23 17:01:20,957 INFO L78 Accepts]: Start accepts. Automaton has 2903 states and 3511 transitions. Word has length 175 [2021-11-23 17:01:20,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:01:20,958 INFO L470 AbstractCegarLoop]: Abstraction has 2903 states and 3511 transitions. [2021-11-23 17:01:20,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 17:01:20,958 INFO L276 IsEmpty]: Start isEmpty. Operand 2903 states and 3511 transitions. [2021-11-23 17:01:20,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2021-11-23 17:01:20,965 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:01:20,966 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 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] [2021-11-23 17:01:20,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:21,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:21,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:21,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/cvc4 --incremental --print-success --lang smt,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:01:21,576 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:01:21,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:01:21,577 INFO L85 PathProgramCache]: Analyzing trace with hash 743941047, now seen corresponding path program 1 times [2021-11-23 17:01:21,578 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:01:21,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649720195] [2021-11-23 17:01:21,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:21,578 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:01:21,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:01:21,579 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:01:21,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-23 17:01:21,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:21,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:01:21,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:21,897 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2021-11-23 17:01:21,898 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:01:21,898 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:01:21,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649720195] [2021-11-23 17:01:21,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649720195] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:01:21,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:01:21,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:01:21,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988388121] [2021-11-23 17:01:21,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:01:21,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:01:21,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:01:21,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:01:21,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:01:21,901 INFO L87 Difference]: Start difference. First operand 2903 states and 3511 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 17:01:22,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:01:22,489 INFO L93 Difference]: Finished difference Result 6506 states and 7868 transitions. [2021-11-23 17:01:22,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:01:22,490 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 187 [2021-11-23 17:01:22,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:01:22,520 INFO L225 Difference]: With dead ends: 6506 [2021-11-23 17:01:22,521 INFO L226 Difference]: Without dead ends: 3465 [2021-11-23 17:01:22,523 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 185 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 17:01:22,524 INFO L933 BasicCegarLoop]: 249 mSDtfsCounter, 143 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 17:01:22,524 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 266 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 17:01:22,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2021-11-23 17:01:22,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3463. [2021-11-23 17:01:22,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3463 states, 3462 states have (on average 1.1787983824378971) internal successors, (4081), 3462 states have internal predecessors, (4081), 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 17:01:22,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3463 states to 3463 states and 4081 transitions. [2021-11-23 17:01:22,604 INFO L78 Accepts]: Start accepts. Automaton has 3463 states and 4081 transitions. Word has length 187 [2021-11-23 17:01:22,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:01:22,605 INFO L470 AbstractCegarLoop]: Abstraction has 3463 states and 4081 transitions. [2021-11-23 17:01:22,605 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 17:01:22,605 INFO L276 IsEmpty]: Start isEmpty. Operand 3463 states and 4081 transitions. [2021-11-23 17:01:22,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2021-11-23 17:01:22,614 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:01:22,614 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-11-23 17:01:22,629 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:22,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:01:22,826 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:01:22,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:01:22,826 INFO L85 PathProgramCache]: Analyzing trace with hash -367012180, now seen corresponding path program 1 times [2021-11-23 17:01:22,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:01:22,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1588419250] [2021-11-23 17:01:22,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:22,828 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:01:22,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:01:22,828 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:01:22,829 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-23 17:01:22,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:22,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:01:22,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:23,232 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2021-11-23 17:01:23,232 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:01:23,232 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:01:23,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1588419250] [2021-11-23 17:01:23,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1588419250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:01:23,232 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:01:23,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:01:23,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969270318] [2021-11-23 17:01:23,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:01:23,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:01:23,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:01:23,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:01:23,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:01:23,234 INFO L87 Difference]: Start difference. First operand 3463 states and 4081 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 17:01:23,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:01:23,733 INFO L93 Difference]: Finished difference Result 7902 states and 9315 transitions. [2021-11-23 17:01:23,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:01:23,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 202 [2021-11-23 17:01:23,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:01:23,749 INFO L225 Difference]: With dead ends: 7902 [2021-11-23 17:01:23,749 INFO L226 Difference]: Without dead ends: 3172 [2021-11-23 17:01:23,753 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 200 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 17:01:23,754 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 21 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 17:01:23,754 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 273 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 17:01:23,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3172 states. [2021-11-23 17:01:23,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3172 to 3172. [2021-11-23 17:01:23,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3172 states, 3171 states have (on average 1.153263954588458) internal successors, (3657), 3171 states have internal predecessors, (3657), 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 17:01:23,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3172 states to 3172 states and 3657 transitions. [2021-11-23 17:01:23,823 INFO L78 Accepts]: Start accepts. Automaton has 3172 states and 3657 transitions. Word has length 202 [2021-11-23 17:01:23,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:01:23,823 INFO L470 AbstractCegarLoop]: Abstraction has 3172 states and 3657 transitions. [2021-11-23 17:01:23,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 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 17:01:23,824 INFO L276 IsEmpty]: Start isEmpty. Operand 3172 states and 3657 transitions. [2021-11-23 17:01:23,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2021-11-23 17:01:23,832 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:01:23,832 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 17:01:23,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:24,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:01:24,048 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:01:24,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:01:24,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1813362471, now seen corresponding path program 1 times [2021-11-23 17:01:24,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:01:24,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [240289735] [2021-11-23 17:01:24,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:24,050 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:01:24,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:01:24,051 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:01:24,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-23 17:01:24,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:24,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:01:24,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:24,442 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-11-23 17:01:24,442 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:01:24,442 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:01:24,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [240289735] [2021-11-23 17:01:24,442 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [240289735] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:01:24,442 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:01:24,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:01:24,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130591442] [2021-11-23 17:01:24,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:01:24,443 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:01:24,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:01:24,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:01:24,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:01:24,444 INFO L87 Difference]: Start difference. First operand 3172 states and 3657 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 17:01:24,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:01:24,954 INFO L93 Difference]: Finished difference Result 7044 states and 8177 transitions. [2021-11-23 17:01:24,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:01:24,954 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 208 [2021-11-23 17:01:24,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:01:24,973 INFO L225 Difference]: With dead ends: 7044 [2021-11-23 17:01:24,973 INFO L226 Difference]: Without dead ends: 3874 [2021-11-23 17:01:24,977 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 206 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 17:01:24,978 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 121 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 17:01:24,978 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [121 Valid, 227 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-23 17:01:24,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3874 states. [2021-11-23 17:01:25,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3874 to 3732. [2021-11-23 17:01:25,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3732 states, 3731 states have (on average 1.1326722058429375) internal successors, (4226), 3731 states have internal predecessors, (4226), 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 17:01:25,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 4226 transitions. [2021-11-23 17:01:25,076 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 4226 transitions. Word has length 208 [2021-11-23 17:01:25,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:01:25,077 INFO L470 AbstractCegarLoop]: Abstraction has 3732 states and 4226 transitions. [2021-11-23 17:01:25,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 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 17:01:25,077 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 4226 transitions. [2021-11-23 17:01:25,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-11-23 17:01:25,087 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:01:25,087 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-11-23 17:01:25,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:25,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:01:25,299 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:01:25,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:01:25,300 INFO L85 PathProgramCache]: Analyzing trace with hash 575594156, now seen corresponding path program 1 times [2021-11-23 17:01:25,301 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:01:25,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1021881995] [2021-11-23 17:01:25,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:25,302 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:01:25,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:01:25,303 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:01:25,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-23 17:01:25,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:25,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:01:25,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:25,712 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-11-23 17:01:25,712 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:01:25,713 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:01:25,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1021881995] [2021-11-23 17:01:25,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1021881995] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:01:25,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:01:25,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:01:25,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297742207] [2021-11-23 17:01:25,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:01:25,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:01:25,714 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:01:25,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:01:25,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:01:25,715 INFO L87 Difference]: Start difference. First operand 3732 states and 4226 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 17:01:26,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:01:26,018 INFO L93 Difference]: Finished difference Result 6893 states and 7834 transitions. [2021-11-23 17:01:26,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:01:26,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 225 [2021-11-23 17:01:26,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:01:26,034 INFO L225 Difference]: With dead ends: 6893 [2021-11-23 17:01:26,035 INFO L226 Difference]: Without dead ends: 3163 [2021-11-23 17:01:26,039 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 223 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 17:01:26,040 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 203 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 17:01:26,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 22 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-23 17:01:26,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3163 states. [2021-11-23 17:01:26,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3163 to 3163. [2021-11-23 17:01:26,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3163 states, 3162 states have (on average 1.1220746363061354) internal successors, (3548), 3162 states have internal predecessors, (3548), 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 17:01:26,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3163 states to 3163 states and 3548 transitions. [2021-11-23 17:01:26,154 INFO L78 Accepts]: Start accepts. Automaton has 3163 states and 3548 transitions. Word has length 225 [2021-11-23 17:01:26,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:01:26,154 INFO L470 AbstractCegarLoop]: Abstraction has 3163 states and 3548 transitions. [2021-11-23 17:01:26,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 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 17:01:26,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3163 states and 3548 transitions. [2021-11-23 17:01:26,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-23 17:01:26,165 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:01:26,166 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 17:01:26,186 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:26,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:01:26,377 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:01:26,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:01:26,378 INFO L85 PathProgramCache]: Analyzing trace with hash -207897926, now seen corresponding path program 1 times [2021-11-23 17:01:26,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:01:26,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1672880308] [2021-11-23 17:01:26,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:26,380 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:01:26,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:01:26,381 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:01:26,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-11-23 17:01:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:26,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:01:26,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:26,813 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 173 proven. 0 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2021-11-23 17:01:26,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:01:26,814 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:01:26,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1672880308] [2021-11-23 17:01:26,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1672880308] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:01:26,814 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:01:26,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:01:26,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209481166] [2021-11-23 17:01:26,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:01:26,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:01:26,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:01:26,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:01:26,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:01:26,816 INFO L87 Difference]: Start difference. First operand 3163 states and 3548 transitions. Second operand has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 17:01:27,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:01:27,257 INFO L93 Difference]: Finished difference Result 6695 states and 7531 transitions. [2021-11-23 17:01:27,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:01:27,258 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 243 [2021-11-23 17:01:27,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:01:27,268 INFO L225 Difference]: With dead ends: 6695 [2021-11-23 17:01:27,269 INFO L226 Difference]: Without dead ends: 3024 [2021-11-23 17:01:27,272 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 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 17:01:27,273 INFO L933 BasicCegarLoop]: 113 mSDtfsCounter, 115 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 17:01:27,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 125 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 17:01:27,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3024 states. [2021-11-23 17:01:27,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3024 to 2883. [2021-11-23 17:01:27,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2883 states, 2882 states have (on average 1.0794587092297017) internal successors, (3111), 2882 states have internal predecessors, (3111), 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 17:01:27,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2883 states to 2883 states and 3111 transitions. [2021-11-23 17:01:27,323 INFO L78 Accepts]: Start accepts. Automaton has 2883 states and 3111 transitions. Word has length 243 [2021-11-23 17:01:27,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:01:27,324 INFO L470 AbstractCegarLoop]: Abstraction has 2883 states and 3111 transitions. [2021-11-23 17:01:27,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.666666666666664) internal successors, (173), 3 states have internal predecessors, (173), 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 17:01:27,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2883 states and 3111 transitions. [2021-11-23 17:01:27,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2021-11-23 17:01:27,333 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 17:01:27,333 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-11-23 17:01:27,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:27,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:01:27,545 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 17:01:27,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 17:01:27,546 INFO L85 PathProgramCache]: Analyzing trace with hash -1912554438, now seen corresponding path program 1 times [2021-11-23 17:01:27,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 17:01:27,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1339626322] [2021-11-23 17:01:27,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 17:01:27,548 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 17:01:27,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat [2021-11-23 17:01:27,550 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 17:01:27,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-11-23 17:01:27,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 17:01:27,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-23 17:01:27,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 17:01:28,033 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-11-23 17:01:28,033 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-23 17:01:28,034 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 17:01:28,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1339626322] [2021-11-23 17:01:28,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1339626322] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 17:01:28,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 17:01:28,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-23 17:01:28,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122439732] [2021-11-23 17:01:28,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 17:01:28,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-23 17:01:28,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 17:01:28,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-23 17:01:28,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-23 17:01:28,036 INFO L87 Difference]: Start difference. First operand 2883 states and 3111 transitions. Second operand has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 17:01:28,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 17:01:28,434 INFO L93 Difference]: Finished difference Result 3725 states and 4004 transitions. [2021-11-23 17:01:28,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-23 17:01:28,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 248 [2021-11-23 17:01:28,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 17:01:28,435 INFO L225 Difference]: With dead ends: 3725 [2021-11-23 17:01:28,435 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 17:01:28,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 246 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 17:01:28,438 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 102 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 17:01:28,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 207 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-23 17:01:28,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 17:01:28,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 17:01:28,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 17:01:28,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 17:01:28,440 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 248 [2021-11-23 17:01:28,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 17:01:28,440 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 17:01:28,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.0) internal successors, (204), 3 states have internal predecessors, (204), 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 17:01:28,441 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 17:01:28,441 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 17:01:28,443 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 17:01:28,454 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-11-23 17:01:28,652 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/mathsat -unsat_core_generation=3 [2021-11-23 17:01:28,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 17:01:29,874 INFO L858 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,874 INFO L858 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,874 INFO L858 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,874 INFO L858 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2021-11-23 17:01:29,874 INFO L858 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2021-11-23 17:01:29,875 INFO L858 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2021-11-23 17:01:29,875 INFO L858 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2021-11-23 17:01:29,875 INFO L858 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2021-11-23 17:01:29,875 INFO L858 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2021-11-23 17:01:29,875 INFO L858 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2021-11-23 17:01:29,875 INFO L858 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2021-11-23 17:01:29,875 INFO L858 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,875 INFO L858 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,875 INFO L858 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,875 INFO L858 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2021-11-23 17:01:29,876 INFO L858 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2021-11-23 17:01:29,876 INFO L858 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2021-11-23 17:01:29,876 INFO L858 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2021-11-23 17:01:29,876 INFO L858 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2021-11-23 17:01:29,876 INFO L858 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,876 INFO L858 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,876 INFO L858 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,876 INFO L858 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2021-11-23 17:01:29,876 INFO L858 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2021-11-23 17:01:29,876 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2021-11-23 17:01:29,877 INFO L858 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2021-11-23 17:01:29,877 INFO L858 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2021-11-23 17:01:29,877 INFO L858 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2021-11-23 17:01:29,877 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2021-11-23 17:01:29,877 INFO L858 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2021-11-23 17:01:29,877 INFO L858 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2021-11-23 17:01:29,877 INFO L858 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2021-11-23 17:01:29,877 INFO L858 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,877 INFO L858 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,877 INFO L858 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,878 INFO L858 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2021-11-23 17:01:29,878 INFO L858 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2021-11-23 17:01:29,878 INFO L858 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2021-11-23 17:01:29,878 INFO L858 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2021-11-23 17:01:29,878 INFO L858 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2021-11-23 17:01:29,878 INFO L858 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2021-11-23 17:01:29,878 INFO L858 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2021-11-23 17:01:29,878 INFO L858 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,878 INFO L858 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,878 INFO L858 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,878 INFO L858 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2021-11-23 17:01:29,879 INFO L858 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2021-11-23 17:01:29,879 INFO L858 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2021-11-23 17:01:29,879 INFO L858 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2021-11-23 17:01:29,879 INFO L858 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2021-11-23 17:01:29,879 INFO L858 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2021-11-23 17:01:29,879 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2021-11-23 17:01:29,879 INFO L858 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,879 INFO L858 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,879 INFO L858 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,879 INFO L858 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2021-11-23 17:01:29,879 INFO L858 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2021-11-23 17:01:29,880 INFO L858 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2021-11-23 17:01:29,880 INFO L858 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2021-11-23 17:01:29,880 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2021-11-23 17:01:29,881 INFO L858 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,881 INFO L858 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,881 INFO L858 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,881 INFO L858 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2021-11-23 17:01:29,882 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2021-11-23 17:01:29,882 INFO L858 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2021-11-23 17:01:29,882 INFO L858 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2021-11-23 17:01:29,882 INFO L858 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2021-11-23 17:01:29,882 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2021-11-23 17:01:29,882 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2021-11-23 17:01:29,882 INFO L858 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2021-11-23 17:01:29,883 INFO L858 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,883 INFO L858 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,883 INFO L858 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,883 INFO L858 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2021-11-23 17:01:29,883 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 17:01:29,883 INFO L858 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2021-11-23 17:01:29,883 INFO L858 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2021-11-23 17:01:29,884 INFO L858 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2021-11-23 17:01:29,884 INFO L858 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2021-11-23 17:01:29,884 INFO L858 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2021-11-23 17:01:29,884 INFO L858 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2021-11-23 17:01:29,884 INFO L858 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2021-11-23 17:01:29,884 INFO L858 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,884 INFO L858 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,885 INFO L858 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,885 INFO L858 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2021-11-23 17:01:29,885 INFO L858 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2021-11-23 17:01:29,885 INFO L858 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2021-11-23 17:01:29,885 INFO L858 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2021-11-23 17:01:29,885 INFO L858 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2021-11-23 17:01:29,885 INFO L858 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2021-11-23 17:01:29,886 INFO L858 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2021-11-23 17:01:29,886 INFO L858 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2021-11-23 17:01:29,886 INFO L858 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2021-11-23 17:01:29,886 INFO L858 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,886 INFO L858 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,886 INFO L858 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,886 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2021-11-23 17:01:29,887 INFO L858 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2021-11-23 17:01:29,887 INFO L858 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2021-11-23 17:01:29,887 INFO L858 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2021-11-23 17:01:29,887 INFO L858 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2021-11-23 17:01:29,887 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2021-11-23 17:01:29,887 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 17:01:29,887 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 557) no Hoare annotation was computed. [2021-11-23 17:01:29,888 INFO L858 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,888 INFO L858 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,888 INFO L858 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,888 INFO L858 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2021-11-23 17:01:29,888 INFO L858 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2021-11-23 17:01:29,888 INFO L858 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2021-11-23 17:01:29,888 INFO L858 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2021-11-23 17:01:29,889 INFO L858 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2021-11-23 17:01:29,889 INFO L858 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2021-11-23 17:01:29,889 INFO L858 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2021-11-23 17:01:29,889 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2021-11-23 17:01:29,889 INFO L858 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,889 INFO L858 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,889 INFO L858 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,890 INFO L858 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2021-11-23 17:01:29,890 INFO L858 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2021-11-23 17:01:29,890 INFO L858 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2021-11-23 17:01:29,890 INFO L858 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2021-11-23 17:01:29,890 INFO L858 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2021-11-23 17:01:29,890 INFO L858 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,890 INFO L858 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,891 INFO L858 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,891 INFO L858 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2021-11-23 17:01:29,891 INFO L858 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2021-11-23 17:01:29,891 INFO L858 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2021-11-23 17:01:29,891 INFO L858 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2021-11-23 17:01:29,891 INFO L858 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2021-11-23 17:01:29,892 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2021-11-23 17:01:29,892 INFO L858 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2021-11-23 17:01:29,892 INFO L858 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2021-11-23 17:01:29,892 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2021-11-23 17:01:29,892 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2021-11-23 17:01:29,892 INFO L858 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2021-11-23 17:01:29,892 INFO L858 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,893 INFO L858 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,893 INFO L858 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2021-11-23 17:01:29,893 INFO L858 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2021-11-23 17:01:29,893 INFO L858 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2021-11-23 17:01:29,893 INFO L858 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2021-11-23 17:01:29,893 INFO L858 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2021-11-23 17:01:29,893 INFO L858 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2021-11-23 17:01:29,894 INFO L858 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2021-11-23 17:01:29,894 INFO L858 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2021-11-23 17:01:29,894 INFO L858 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2021-11-23 17:01:29,894 INFO L854 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~a11~0)) (.cse6 (= (_ bv10 32) ~a28~0)) (.cse2 (= (_ bv8 32) ~a17~0)) (.cse1 (= (_ bv0 32) ~a25~0)) (.cse7 (= (_ bv7 32) ~a17~0)) (.cse3 (= (_ bv1 32) ~a25~0)) (.cse4 (= (_ bv1 32) ~a19~0)) (.cse8 (= (_ bv11 32) ~a28~0)) (.cse5 (= (_ bv0 32) ~a11~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4 .cse2) (and .cse1 .cse5 .cse2) (and .cse4 .cse6 .cse1 .cse2) (and .cse7 .cse1) (and .cse3 .cse5 .cse2) (and .cse3 .cse4 .cse8 .cse2) (and .cse3 .cse4 .cse6 .cse2) (and (= (_ bv7 32) ~a28~0) .cse4 .cse1 .cse5 (or (= (_ bv1 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv4 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv5 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv3 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv6 32) |ULTIMATE.start_calculate_output_~input#1|))) (and .cse7 .cse3) (and .cse3 .cse4 .cse8 .cse5))) [2021-11-23 17:01:29,894 INFO L858 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,895 INFO L858 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,895 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2021-11-23 17:01:29,895 INFO L858 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2021-11-23 17:01:29,895 INFO L858 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2021-11-23 17:01:29,895 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2021-11-23 17:01:29,895 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2021-11-23 17:01:29,895 INFO L858 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2021-11-23 17:01:29,896 INFO L861 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2021-11-23 17:01:29,896 INFO L858 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,896 INFO L858 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,896 INFO L858 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2021-11-23 17:01:29,896 INFO L858 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2021-11-23 17:01:29,896 INFO L858 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2021-11-23 17:01:29,896 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2021-11-23 17:01:29,897 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2021-11-23 17:01:29,897 INFO L858 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2021-11-23 17:01:29,897 INFO L858 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2021-11-23 17:01:29,897 INFO L858 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2021-11-23 17:01:29,897 INFO L858 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2021-11-23 17:01:29,897 INFO L858 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,897 INFO L858 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,898 INFO L858 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2021-11-23 17:01:29,898 INFO L858 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2021-11-23 17:01:29,898 INFO L858 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2021-11-23 17:01:29,898 INFO L858 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2021-11-23 17:01:29,898 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 17:01:29,898 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2021-11-23 17:01:29,898 INFO L858 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2021-11-23 17:01:29,899 INFO L854 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse0 (= (_ bv1 32) ~a11~0)) (.cse6 (= (_ bv10 32) ~a28~0)) (.cse2 (= (_ bv8 32) ~a17~0)) (.cse1 (= (_ bv0 32) ~a25~0)) (.cse7 (= (_ bv7 32) ~a17~0)) (.cse3 (= (_ bv1 32) ~a25~0)) (.cse4 (= (_ bv1 32) ~a19~0)) (.cse8 (= (_ bv11 32) ~a28~0)) (.cse5 (= (_ bv0 32) ~a11~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse3 .cse4 .cse2) (and .cse1 .cse5 .cse2) (and .cse4 .cse6 .cse1 .cse2) (and .cse7 .cse1) (and .cse3 .cse5 .cse2) (and .cse3 .cse4 .cse8 .cse2) (and .cse3 .cse4 .cse6 .cse2) (and (= (_ bv7 32) ~a28~0) .cse4 .cse1 .cse5 (or (= (_ bv1 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv4 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv5 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv3 32) |ULTIMATE.start_calculate_output_~input#1|) (= (_ bv6 32) |ULTIMATE.start_calculate_output_~input#1|))) (and .cse7 .cse3) (and .cse3 .cse4 .cse8 .cse5))) [2021-11-23 17:01:29,899 INFO L858 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,899 INFO L858 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,899 INFO L858 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2021-11-23 17:01:29,899 INFO L858 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2021-11-23 17:01:29,899 INFO L858 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2021-11-23 17:01:29,899 INFO L858 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2021-11-23 17:01:29,900 INFO L858 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2021-11-23 17:01:29,900 INFO L858 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,900 INFO L858 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,900 INFO L858 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2021-11-23 17:01:29,900 INFO L858 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2021-11-23 17:01:29,900 INFO L858 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2021-11-23 17:01:29,900 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2021-11-23 17:01:29,901 INFO L858 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2021-11-23 17:01:29,901 INFO L858 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2021-11-23 17:01:29,901 INFO L858 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2021-11-23 17:01:29,901 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-11-23 17:01:29,901 INFO L858 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2021-11-23 17:01:29,901 INFO L858 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,901 INFO L858 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,902 INFO L858 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2021-11-23 17:01:29,902 INFO L858 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,902 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 17:01:29,902 INFO L858 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2021-11-23 17:01:29,902 INFO L858 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2021-11-23 17:01:29,902 INFO L858 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2021-11-23 17:01:29,902 INFO L858 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2021-11-23 17:01:29,903 INFO L858 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2021-11-23 17:01:29,903 INFO L858 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2021-11-23 17:01:29,903 INFO L858 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,903 INFO L858 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,903 INFO L858 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,903 INFO L858 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2021-11-23 17:01:29,903 INFO L858 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2021-11-23 17:01:29,904 INFO L858 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2021-11-23 17:01:29,904 INFO L858 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2021-11-23 17:01:29,904 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2021-11-23 17:01:29,904 INFO L858 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,904 INFO L858 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,904 INFO L858 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2021-11-23 17:01:29,904 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2021-11-23 17:01:29,905 INFO L858 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2021-11-23 17:01:29,905 INFO L858 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2021-11-23 17:01:29,905 INFO L858 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-11-23 17:01:29,905 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2021-11-23 17:01:29,905 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2021-11-23 17:01:29,911 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 17:01:29,913 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 17:01:29,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 05:01:29 BoogieIcfgContainer [2021-11-23 17:01:29,953 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 17:01:29,954 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 17:01:29,954 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 17:01:29,955 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 17:01:29,955 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 05:00:57" (3/4) ... [2021-11-23 17:01:29,958 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-23 17:01:29,989 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-23 17:01:29,990 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-23 17:01:29,991 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-23 17:01:29,993 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-23 17:01:30,143 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/bin/utaipan-fb15Y9Yzbl/witness.graphml [2021-11-23 17:01:30,143 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 17:01:30,144 INFO L158 Benchmark]: Toolchain (without parser) took 35210.12ms. Allocated memory was 65.0MB in the beginning and 251.7MB in the end (delta: 186.6MB). Free memory was 43.2MB in the beginning and 71.1MB in the end (delta: -27.9MB). Peak memory consumption was 158.3MB. Max. memory is 16.1GB. [2021-11-23 17:01:30,144 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 65.0MB. Free memory was 46.5MB in the beginning and 46.4MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 17:01:30,145 INFO L158 Benchmark]: CACSL2BoogieTranslator took 730.61ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 43.0MB in the beginning and 51.5MB in the end (delta: -8.5MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2021-11-23 17:01:30,146 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.76ms. Allocated memory is still 83.9MB. Free memory was 51.5MB in the beginning and 46.1MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 17:01:30,146 INFO L158 Benchmark]: Boogie Preprocessor took 103.88ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 41.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 17:01:30,148 INFO L158 Benchmark]: RCFGBuilder took 1593.77ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 35.9MB in the end (delta: 6.0MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2021-11-23 17:01:30,149 INFO L158 Benchmark]: TraceAbstraction took 32488.25ms. Allocated memory was 83.9MB in the beginning and 251.7MB in the end (delta: 167.8MB). Free memory was 35.5MB in the beginning and 85.8MB in the end (delta: -50.3MB). Peak memory consumption was 135.7MB. Max. memory is 16.1GB. [2021-11-23 17:01:30,149 INFO L158 Benchmark]: Witness Printer took 189.27ms. Allocated memory is still 251.7MB. Free memory was 85.8MB in the beginning and 71.1MB in the end (delta: 14.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 17:01:30,156 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 65.0MB. Free memory was 46.5MB in the beginning and 46.4MB in the end (delta: 48.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 730.61ms. Allocated memory was 65.0MB in the beginning and 83.9MB in the end (delta: 18.9MB). Free memory was 43.0MB in the beginning and 51.5MB in the end (delta: -8.5MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.76ms. Allocated memory is still 83.9MB. Free memory was 51.5MB in the beginning and 46.1MB in the end (delta: 5.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 103.88ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 41.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1593.77ms. Allocated memory is still 83.9MB. Free memory was 41.9MB in the beginning and 35.9MB in the end (delta: 6.0MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * TraceAbstraction took 32488.25ms. Allocated memory was 83.9MB in the beginning and 251.7MB in the end (delta: 167.8MB). Free memory was 35.5MB in the beginning and 85.8MB in the end (delta: -50.3MB). Peak memory consumption was 135.7MB. Max. memory is 16.1GB. * Witness Printer took 189.27ms. Allocated memory is still 251.7MB. Free memory was 85.8MB in the beginning and 71.1MB in the end (delta: 14.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 557]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 32.4s, OverallIterations: 13, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.2s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2652 SdHoareTripleChecker+Valid, 9.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2652 mSDsluCounter, 2043 SdHoareTripleChecker+Invalid, 7.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 301 mSDsCounter, 1078 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5885 IncrementalHoareTripleChecker+Invalid, 6963 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1078 mSolverCounterUnsat, 1742 mSDtfsCounter, 5885 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3380 GetRequests, 3344 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3893occurred in iteration=6, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 13 MinimizatonAttempts, 1158 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 69 NumberOfFragments, 279 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1651 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 3 FomulaSimplificationsInter, 2620 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 14.5s InterpolantComputationTime, 2890 NumberOfCodeBlocks, 2890 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 3379 ConstructedInterpolants, 0 QuantifiedInterpolants, 15699 SizeOfPredicates, 33 NumberOfNonLiveVariables, 4033 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 19 InterpolantComputations, 13 PerfectInterpolantSequences, 1621/1837 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((((((((1bv32 == a11 && 0bv32 == a25) && 8bv32 == a17) || (((1bv32 == a11 && 1bv32 == a25) && 1bv32 == a19) && 8bv32 == a17)) || ((0bv32 == a25 && 0bv32 == a11) && 8bv32 == a17)) || (((1bv32 == a19 && 10bv32 == a28) && 0bv32 == a25) && 8bv32 == a17)) || (7bv32 == a17 && 0bv32 == a25)) || ((1bv32 == a25 && 0bv32 == a11) && 8bv32 == a17)) || (((1bv32 == a25 && 1bv32 == a19) && 11bv32 == a28) && 8bv32 == a17)) || (((1bv32 == a25 && 1bv32 == a19) && 10bv32 == a28) && 8bv32 == a17)) || ((((7bv32 == a28 && 1bv32 == a19) && 0bv32 == a25) && 0bv32 == a11) && ((((1bv32 == input || 4bv32 == input) || 5bv32 == input) || 3bv32 == input) || 6bv32 == input))) || (7bv32 == a17 && 1bv32 == a25)) || (((1bv32 == a25 && 1bv32 == a19) && 11bv32 == a28) && 0bv32 == a11) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((((1bv32 == a11 && 0bv32 == a25) && 8bv32 == a17) || (((1bv32 == a11 && 1bv32 == a25) && 1bv32 == a19) && 8bv32 == a17)) || ((0bv32 == a25 && 0bv32 == a11) && 8bv32 == a17)) || (((1bv32 == a19 && 10bv32 == a28) && 0bv32 == a25) && 8bv32 == a17)) || (7bv32 == a17 && 0bv32 == a25)) || ((1bv32 == a25 && 0bv32 == a11) && 8bv32 == a17)) || (((1bv32 == a25 && 1bv32 == a19) && 11bv32 == a28) && 8bv32 == a17)) || (((1bv32 == a25 && 1bv32 == a19) && 10bv32 == a28) && 8bv32 == a17)) || ((((7bv32 == a28 && 1bv32 == a19) && 0bv32 == a25) && 0bv32 == a11) && ((((1bv32 == input || 4bv32 == input) || 5bv32 == input) || 3bv32 == input) || 6bv32 == input))) || (7bv32 == a17 && 1bv32 == a25)) || (((1bv32 == a25 && 1bv32 == a19) && 11bv32 == a28) && 0bv32 == a11) RESULT: Ultimate proved your program to be correct! [2021-11-23 17:01:30,222 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cd80d3b-27eb-4115-89bb-9b7ee71a58f4/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 Writing output log to file Ultimate.log Result: TRUE