./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label22.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label22.c -s /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan --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 cbddc165459c7b3dca3395cc179943d3053cf321 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label22.c -s /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan --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 cbddc165459c7b3dca3395cc179943d3053cf321 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 20:21:31,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 20:21:31,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 20:21:31,323 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 20:21:31,336 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 20:21:31,337 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 20:21:31,339 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 20:21:31,341 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 20:21:31,344 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 20:21:31,345 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 20:21:31,346 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 20:21:31,347 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 20:21:31,347 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 20:21:31,349 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 20:21:31,350 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 20:21:31,351 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 20:21:31,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 20:21:31,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 20:21:31,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 20:21:31,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 20:21:31,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 20:21:31,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 20:21:31,362 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 20:21:31,363 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 20:21:31,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 20:21:31,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 20:21:31,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 20:21:31,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 20:21:31,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 20:21:31,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 20:21:31,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 20:21:31,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 20:21:31,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 20:21:31,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 20:21:31,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 20:21:31,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 20:21:31,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 20:21:31,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 20:21:31,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 20:21:31,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 20:21:31,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 20:21:31,376 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 20:21:31,398 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 20:21:31,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 20:21:31,399 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 20:21:31,399 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 20:21:31,399 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 20:21:31,399 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 20:21:31,399 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 20:21:31,399 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 20:21:31,400 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 20:21:31,400 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 20:21:31,400 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 20:21:31,400 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 20:21:31,400 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 20:21:31,400 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 20:21:31,401 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 20:21:31,401 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 20:21:31,401 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 20:21:31,401 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 20:21:31,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 20:21:31,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 20:21:31,402 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 20:21:31,402 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 20:21:31,402 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 20:21:31,402 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 20:21:31,402 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 20:21:31,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 20:21:31,402 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 20:21:31,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 20:21:31,403 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 20:21:31,403 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 20:21:31,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:21:31,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 20:21:31,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 20:21:31,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 20:21:31,403 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 20:21:31,404 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 20:21:31,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 20:21:31,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 20:21:31,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 20:21:31,404 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-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbddc165459c7b3dca3395cc179943d3053cf321 [2020-12-09 20:21:31,583 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 20:21:31,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 20:21:31,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 20:21:31,605 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 20:21:31,606 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 20:21:31,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label22.c [2020-12-09 20:21:31,648 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/data/83461f971/017e63eac1564897a46937466e389c19/FLAGa7d7177d0 [2020-12-09 20:21:32,078 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 20:21:32,078 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/sv-benchmarks/c/eca-rers2012/Problem10_label22.c [2020-12-09 20:21:32,087 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/data/83461f971/017e63eac1564897a46937466e389c19/FLAGa7d7177d0 [2020-12-09 20:21:32,099 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/data/83461f971/017e63eac1564897a46937466e389c19 [2020-12-09 20:21:32,101 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 20:21:32,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 20:21:32,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 20:21:32,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 20:21:32,107 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 20:21:32,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:21:32" (1/1) ... [2020-12-09 20:21:32,109 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16021bb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:21:32, skipping insertion in model container [2020-12-09 20:21:32,109 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:21:32" (1/1) ... [2020-12-09 20:21:32,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 20:21:32,147 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 20:21:32,298 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/sv-benchmarks/c/eca-rers2012/Problem10_label22.c[4319,4332] [2020-12-09 20:21:32,404 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:21:32,410 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 20:21:32,427 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/sv-benchmarks/c/eca-rers2012/Problem10_label22.c[4319,4332] [2020-12-09 20:21:32,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:21:32,489 INFO L208 MainTranslator]: Completed translation [2020-12-09 20:21:32,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:21:32 WrapperNode [2020-12-09 20:21:32,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 20:21:32,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 20:21:32,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 20:21:32,490 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 20:21:32,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:21:32" (1/1) ... [2020-12-09 20:21:32,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:21:32" (1/1) ... [2020-12-09 20:21:32,552 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 20:21:32,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 20:21:32,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 20:21:32,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 20:21:32,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:21:32" (1/1) ... [2020-12-09 20:21:32,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:21:32" (1/1) ... [2020-12-09 20:21:32,566 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:21:32" (1/1) ... [2020-12-09 20:21:32,566 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:21:32" (1/1) ... [2020-12-09 20:21:32,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:21:32" (1/1) ... [2020-12-09 20:21:32,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:21:32" (1/1) ... [2020-12-09 20:21:32,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:21:32" (1/1) ... [2020-12-09 20:21:32,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 20:21:32,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 20:21:32,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 20:21:32,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 20:21:32,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:21:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:21:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 20:21:32,680 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 20:21:32,681 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 20:21:32,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 20:21:38,446 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 20:21:38,447 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 20:21:38,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:21:38 BoogieIcfgContainer [2020-12-09 20:21:38,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 20:21:38,450 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 20:21:38,450 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 20:21:38,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 20:21:38,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:21:32" (1/3) ... [2020-12-09 20:21:38,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72537596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:21:38, skipping insertion in model container [2020-12-09 20:21:38,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:21:32" (2/3) ... [2020-12-09 20:21:38,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72537596 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:21:38, skipping insertion in model container [2020-12-09 20:21:38,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:21:38" (3/3) ... [2020-12-09 20:21:38,454 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label22.c [2020-12-09 20:21:38,464 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 20:21:38,468 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 20:21:38,475 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 20:21:38,491 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 20:21:38,491 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 20:21:38,491 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 20:21:38,491 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 20:21:38,492 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 20:21:38,492 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 20:21:38,492 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 20:21:38,492 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 20:21:38,500 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-09 20:21:38,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 20:21:38,503 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:21:38,503 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 20:21:38,504 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:21:38,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:21:38,508 INFO L82 PathProgramCache]: Analyzing trace with hash 857612634, now seen corresponding path program 1 times [2020-12-09 20:21:38,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:21:38,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580970331] [2020-12-09 20:21:38,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:21:38,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:21:38,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:21:38,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580970331] [2020-12-09 20:21:38,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:21:38,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:21:38,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828705072] [2020-12-09 20:21:38,662 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:21:38,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:21:38,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:21:38,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:21:38,675 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2020-12-09 20:21:38,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:21:38,752 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2020-12-09 20:21:38,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:21:38,754 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-09 20:21:38,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:21:38,761 INFO L225 Difference]: With dead ends: 23 [2020-12-09 20:21:38,761 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 20:21:38,764 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:21:38,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 20:21:38,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-12-09 20:21:38,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-09 20:21:38,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-09 20:21:38,788 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2020-12-09 20:21:38,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:21:38,788 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-09 20:21:38,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:21:38,788 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-09 20:21:38,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 20:21:38,789 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:21:38,789 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2020-12-09 20:21:38,789 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 20:21:38,789 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:21:38,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:21:38,790 INFO L82 PathProgramCache]: Analyzing trace with hash -2031604124, now seen corresponding path program 1 times [2020-12-09 20:21:38,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:21:38,790 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947019397] [2020-12-09 20:21:38,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:21:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:21:39,084 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:21:39,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947019397] [2020-12-09 20:21:39,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811703912] [2020-12-09 20:21:39,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 20:21:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:21:39,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 13 conjunts are in the unsatisfiable core [2020-12-09 20:21:39,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:21:39,339 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 1002 DAG size of output: 133 [2020-12-09 20:21:39,375 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:21:39,377 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,379 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:21:39,380 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,381 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:21:39,382 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:21:39,384 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:21:39,386 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:21:39,390 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:21:39,391 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,392 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,393 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,395 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:21:39,399 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,401 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,403 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:21:39,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:21:39,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,408 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:21:39,412 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:21:39,413 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,414 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,415 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,418 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:21:39,421 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:21:39,422 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:21:39,423 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:21:39,425 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 20:21:39,427 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 20:21:39,428 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 20:21:39,431 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:21:39,435 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,437 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:21:39,438 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:21:39,439 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,442 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:21:39,445 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,446 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,447 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:21:39,448 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:21:39,449 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 20:21:39,452 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,455 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:21:39,456 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,456 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,457 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 20:21:39,459 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 20:21:39,464 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 9, 4, 5, 4, 4, 4, 3, 4, 1] term [2020-12-09 20:21:39,465 INFO L639 QuantifierPusher]: Distributing 9 conjuncts over 2 disjuncts [2020-12-09 20:21:39,466 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 5, 4, 4, 4, 3, 4, 1] term [2020-12-09 20:21:39,466 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:21:39,467 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 4, 4, 3, 4, 1] term [2020-12-09 20:21:39,467 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:21:39,468 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 4, 1] term [2020-12-09 20:21:39,468 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 20:21:39,470 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 4, 4, 3, 4, 1] term [2020-12-09 20:21:39,471 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:21:39,575 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 20:21:39,576 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-09 20:21:39,636 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:21:39,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:21:39,890 WARN L197 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 1666 DAG size of output: 1146 [2020-12-09 20:21:39,904 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2020-12-09 20:21:39,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1636985641] [2020-12-09 20:21:39,919 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-12-09 20:21:39,919 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 20:21:39,922 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 20:21:39,926 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 20:21:39,926 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 20:21:40,050 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 32 [2020-12-09 20:21:40,685 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 32 [2020-12-09 20:21:41,600 WARN L197 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 1686 DAG size of output: 1601 [2020-12-09 20:30:24,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-09 20:30:24,358 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: variable got div captured at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:426) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$IDerHelper.findBestReplacementSbr(DualJunctionDer.java:305) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$IDerHelper.tryToEliminateSbr(DualJunctionDer.java:319) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:190) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:174) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:141) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminate(DualJunctionDer.java:119) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:776) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:739) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:656) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:358) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.doit(QuantifierPusher.java:523) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:378) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:151) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:202) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1133) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) 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) [2020-12-09 20:30:24,372 INFO L168 Benchmark]: Toolchain (without parser) took 532264.75 ms. Allocated memory was 109.1 MB in the beginning and 872.4 MB in the end (delta: 763.4 MB). Free memory was 70.4 MB in the beginning and 767.8 MB in the end (delta: -697.4 MB). Peak memory consumption was 565.7 MB. Max. memory is 16.1 GB. [2020-12-09 20:30:24,374 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 109.1 MB. Free memory is still 88.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:30:24,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 385.11 ms. Allocated memory is still 109.1 MB. Free memory was 70.2 MB in the beginning and 69.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 20:30:24,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.53 ms. Allocated memory is still 109.1 MB. Free memory was 69.0 MB in the beginning and 61.2 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 20:30:24,377 INFO L168 Benchmark]: Boogie Preprocessor took 73.93 ms. Allocated memory is still 109.1 MB. Free memory was 61.2 MB in the beginning and 56.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 20:30:24,378 INFO L168 Benchmark]: RCFGBuilder took 5820.96 ms. Allocated memory was 109.1 MB in the beginning and 270.5 MB in the end (delta: 161.5 MB). Free memory was 56.0 MB in the beginning and 164.2 MB in the end (delta: -108.2 MB). Peak memory consumption was 126.6 MB. Max. memory is 16.1 GB. [2020-12-09 20:30:24,378 INFO L168 Benchmark]: TraceAbstraction took 525917.09 ms. Allocated memory was 270.5 MB in the beginning and 872.4 MB in the end (delta: 601.9 MB). Free memory was 163.2 MB in the beginning and 767.8 MB in the end (delta: -604.6 MB). Peak memory consumption was 497.5 MB. Max. memory is 16.1 GB. [2020-12-09 20:30:24,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 109.1 MB. Free memory is still 88.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 385.11 ms. Allocated memory is still 109.1 MB. Free memory was 70.2 MB in the beginning and 69.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 62.53 ms. Allocated memory is still 109.1 MB. Free memory was 69.0 MB in the beginning and 61.2 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.93 ms. Allocated memory is still 109.1 MB. Free memory was 61.2 MB in the beginning and 56.0 MB in the end (delta: 5.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5820.96 ms. Allocated memory was 109.1 MB in the beginning and 270.5 MB in the end (delta: 161.5 MB). Free memory was 56.0 MB in the beginning and 164.2 MB in the end (delta: -108.2 MB). Peak memory consumption was 126.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 525917.09 ms. Allocated memory was 270.5 MB in the beginning and 872.4 MB in the end (delta: 601.9 MB). Free memory was 163.2 MB in the beginning and 767.8 MB in the end (delta: -604.6 MB). Peak memory consumption was 497.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: variable got div captured de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: variable got div captured: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:426) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 20:30:25,899 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 20:30:25,901 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 20:30:25,929 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 20:30:25,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 20:30:25,930 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 20:30:25,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 20:30:25,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 20:30:25,936 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 20:30:25,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 20:30:25,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 20:30:25,940 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 20:30:25,941 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 20:30:25,942 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 20:30:25,943 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 20:30:25,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 20:30:25,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 20:30:25,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 20:30:25,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 20:30:25,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 20:30:25,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 20:30:25,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 20:30:25,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 20:30:25,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 20:30:25,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 20:30:25,960 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 20:30:25,961 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 20:30:25,962 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 20:30:25,962 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 20:30:25,963 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 20:30:25,964 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 20:30:25,965 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 20:30:25,966 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 20:30:25,967 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 20:30:25,968 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 20:30:25,968 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 20:30:25,969 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 20:30:25,969 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 20:30:25,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 20:30:25,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 20:30:25,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 20:30:25,971 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 20:30:25,995 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 20:30:25,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 20:30:25,995 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 20:30:25,996 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 20:30:25,996 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 20:30:25,996 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 20:30:25,996 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 20:30:25,996 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 20:30:25,996 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 20:30:25,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 20:30:25,997 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 20:30:25,997 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 20:30:25,997 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 20:30:25,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 20:30:25,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 20:30:25,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 20:30:25,998 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 20:30:25,998 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 20:30:25,998 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 20:30:25,998 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 20:30:25,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 20:30:25,998 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 20:30:25,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 20:30:25,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 20:30:25,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 20:30:25,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 20:30:25,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:30:25,999 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 20:30:25,999 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 20:30:25,999 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 20:30:26,000 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 20:30:26,000 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 20:30:26,000 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 20:30:26,000 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 20:30:26,000 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 20:30:26,000 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-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cbddc165459c7b3dca3395cc179943d3053cf321 [2020-12-09 20:30:26,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 20:30:26,233 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 20:30:26,235 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 20:30:26,236 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 20:30:26,236 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 20:30:26,237 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label22.c [2020-12-09 20:30:26,277 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/data/df40925f0/e55a2ad59d1f4359ab2a97234c84abf0/FLAG7fa055c38 [2020-12-09 20:30:26,706 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 20:30:26,706 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/sv-benchmarks/c/eca-rers2012/Problem10_label22.c [2020-12-09 20:30:26,717 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/data/df40925f0/e55a2ad59d1f4359ab2a97234c84abf0/FLAG7fa055c38 [2020-12-09 20:30:26,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/data/df40925f0/e55a2ad59d1f4359ab2a97234c84abf0 [2020-12-09 20:30:26,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 20:30:26,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 20:30:26,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 20:30:26,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 20:30:26,743 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 20:30:26,744 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:30:26" (1/1) ... [2020-12-09 20:30:26,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ec17dea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:30:26, skipping insertion in model container [2020-12-09 20:30:26,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:30:26" (1/1) ... [2020-12-09 20:30:26,752 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 20:30:26,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 20:30:26,911 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/sv-benchmarks/c/eca-rers2012/Problem10_label22.c[4319,4332] [2020-12-09 20:30:27,061 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:30:27,073 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 20:30:27,097 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/sv-benchmarks/c/eca-rers2012/Problem10_label22.c[4319,4332] [2020-12-09 20:30:27,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:30:27,186 INFO L208 MainTranslator]: Completed translation [2020-12-09 20:30:27,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:30:27 WrapperNode [2020-12-09 20:30:27,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 20:30:27,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 20:30:27,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 20:30:27,188 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 20:30:27,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:30:27" (1/1) ... [2020-12-09 20:30:27,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:30:27" (1/1) ... [2020-12-09 20:30:27,243 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 20:30:27,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 20:30:27,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 20:30:27,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 20:30:27,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:30:27" (1/1) ... [2020-12-09 20:30:27,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:30:27" (1/1) ... [2020-12-09 20:30:27,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:30:27" (1/1) ... [2020-12-09 20:30:27,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:30:27" (1/1) ... [2020-12-09 20:30:27,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:30:27" (1/1) ... [2020-12-09 20:30:27,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:30:27" (1/1) ... [2020-12-09 20:30:27,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:30:27" (1/1) ... [2020-12-09 20:30:27,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 20:30:27,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 20:30:27,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 20:30:27,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 20:30:27,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:30:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:30:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 20:30:27,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 20:30:27,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 20:30:27,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 20:30:29,389 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 20:30:29,389 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 20:30:29,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:30:29 BoogieIcfgContainer [2020-12-09 20:30:29,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 20:30:29,393 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 20:30:29,393 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 20:30:29,396 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 20:30:29,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:30:26" (1/3) ... [2020-12-09 20:30:29,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5560ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:30:29, skipping insertion in model container [2020-12-09 20:30:29,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:30:27" (2/3) ... [2020-12-09 20:30:29,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5560ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:30:29, skipping insertion in model container [2020-12-09 20:30:29,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:30:29" (3/3) ... [2020-12-09 20:30:29,399 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label22.c [2020-12-09 20:30:29,411 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 20:30:29,415 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 20:30:29,424 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 20:30:29,444 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 20:30:29,444 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 20:30:29,444 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 20:30:29,444 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 20:30:29,444 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 20:30:29,444 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 20:30:29,444 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 20:30:29,444 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 20:30:29,456 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2020-12-09 20:30:29,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-12-09 20:30:29,460 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:30:29,461 INFO L422 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] [2020-12-09 20:30:29,461 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:30:29,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:30:29,465 INFO L82 PathProgramCache]: Analyzing trace with hash 2088660649, now seen corresponding path program 1 times [2020-12-09 20:30:29,474 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:30:29,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503170115] [2020-12-09 20:30:29,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 20:30:29,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:30:29,536 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 20:30:29,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:30:29,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:30:29,612 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:30:29,612 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503170115] [2020-12-09 20:30:29,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:30:29,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:30:29,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032560324] [2020-12-09 20:30:29,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:30:29,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:30:29,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:30:29,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:30:29,627 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 3 states. [2020-12-09 20:30:32,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:30:32,389 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2020-12-09 20:30:32,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:30:32,391 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 37 [2020-12-09 20:30:32,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:30:32,400 INFO L225 Difference]: With dead ends: 552 [2020-12-09 20:30:32,400 INFO L226 Difference]: Without dead ends: 282 [2020-12-09 20:30:32,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:30:32,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-12-09 20:30:32,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-12-09 20:30:32,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-12-09 20:30:32,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 407 transitions. [2020-12-09 20:30:32,438 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 407 transitions. Word has length 37 [2020-12-09 20:30:32,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:30:32,438 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 407 transitions. [2020-12-09 20:30:32,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:30:32,438 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 407 transitions. [2020-12-09 20:30:32,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-12-09 20:30:32,441 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:30:32,442 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-12-09 20:30:32,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 20:30:32,643 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:30:32,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:30:32,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1138263967, now seen corresponding path program 1 times [2020-12-09 20:30:32,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:30:32,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [644313461] [2020-12-09 20:30:32,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 20:30:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:30:32,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 20:30:32,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:30:32,849 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:30:32,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:30:32,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [644313461] [2020-12-09 20:30:32,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:30:32,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:30:32,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798939126] [2020-12-09 20:30:32,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:30:32,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:30:32,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:30:32,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:30:32,852 INFO L87 Difference]: Start difference. First operand 282 states and 407 transitions. Second operand 3 states. [2020-12-09 20:30:35,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:30:35,533 INFO L93 Difference]: Finished difference Result 840 states and 1216 transitions. [2020-12-09 20:30:35,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:30:35,534 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 105 [2020-12-09 20:30:35,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:30:35,537 INFO L225 Difference]: With dead ends: 840 [2020-12-09 20:30:35,537 INFO L226 Difference]: Without dead ends: 560 [2020-12-09 20:30:35,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:30:35,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-12-09 20:30:35,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2020-12-09 20:30:35,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-12-09 20:30:35,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 735 transitions. [2020-12-09 20:30:35,559 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 735 transitions. Word has length 105 [2020-12-09 20:30:35,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:30:35,560 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 735 transitions. [2020-12-09 20:30:35,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:30:35,560 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 735 transitions. [2020-12-09 20:30:35,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2020-12-09 20:30:35,565 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:30:35,565 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-12-09 20:30:35,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 20:30:35,767 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:30:35,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:30:35,770 INFO L82 PathProgramCache]: Analyzing trace with hash 1974904213, now seen corresponding path program 1 times [2020-12-09 20:30:35,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:30:35,773 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [889497347] [2020-12-09 20:30:35,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 20:30:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:30:35,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 20:30:35,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:30:35,911 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:30:35,911 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:30:35,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [889497347] [2020-12-09 20:30:35,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:30:35,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 20:30:35,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240937281] [2020-12-09 20:30:35,912 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:30:35,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:30:35,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:30:35,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:30:35,913 INFO L87 Difference]: Start difference. First operand 560 states and 735 transitions. Second operand 3 states. [2020-12-09 20:30:38,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:30:38,399 INFO L93 Difference]: Finished difference Result 1396 states and 1872 transitions. [2020-12-09 20:30:38,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:30:38,402 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2020-12-09 20:30:38,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:30:38,406 INFO L225 Difference]: With dead ends: 1396 [2020-12-09 20:30:38,406 INFO L226 Difference]: Without dead ends: 838 [2020-12-09 20:30:38,407 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:30:38,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-12-09 20:30:38,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-12-09 20:30:38,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-12-09 20:30:38,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1044 transitions. [2020-12-09 20:30:38,423 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1044 transitions. Word has length 114 [2020-12-09 20:30:38,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:30:38,423 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1044 transitions. [2020-12-09 20:30:38,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:30:38,424 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1044 transitions. [2020-12-09 20:30:38,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-12-09 20:30:38,427 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:30:38,427 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-12-09 20:30:38,627 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 20:30:38,629 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:30:38,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:30:38,630 INFO L82 PathProgramCache]: Analyzing trace with hash -218435537, now seen corresponding path program 1 times [2020-12-09 20:30:38,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:30:38,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [120673022] [2020-12-09 20:30:38,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 20:30:38,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:30:38,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 20:30:38,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:30:39,060 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:30:39,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:30:39,060 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [120673022] [2020-12-09 20:30:39,060 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:30:39,060 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:30:39,061 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138727728] [2020-12-09 20:30:39,061 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 20:30:39,061 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:30:39,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 20:30:39,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 20:30:39,062 INFO L87 Difference]: Start difference. First operand 838 states and 1044 transitions. Second operand 4 states. [2020-12-09 20:30:41,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:30:41,412 INFO L93 Difference]: Finished difference Result 1833 states and 2255 transitions. [2020-12-09 20:30:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 20:30:41,417 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 150 [2020-12-09 20:30:41,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:30:41,421 INFO L225 Difference]: With dead ends: 1833 [2020-12-09 20:30:41,421 INFO L226 Difference]: Without dead ends: 997 [2020-12-09 20:30:41,422 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 20:30:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 997 states. [2020-12-09 20:30:41,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 997 to 977. [2020-12-09 20:30:41,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 977 states. [2020-12-09 20:30:41,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1188 transitions. [2020-12-09 20:30:41,444 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1188 transitions. Word has length 150 [2020-12-09 20:30:41,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:30:41,444 INFO L481 AbstractCegarLoop]: Abstraction has 977 states and 1188 transitions. [2020-12-09 20:30:41,444 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 20:30:41,445 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1188 transitions. [2020-12-09 20:30:41,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2020-12-09 20:30:41,448 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:30:41,449 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-12-09 20:30:41,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 20:30:41,650 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:30:41,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:30:41,652 INFO L82 PathProgramCache]: Analyzing trace with hash 294682690, now seen corresponding path program 1 times [2020-12-09 20:30:41,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:30:41,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1964003111] [2020-12-09 20:30:41,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 20:30:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:30:41,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 20:30:41,787 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:30:41,895 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 134 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:30:41,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:30:41,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1964003111] [2020-12-09 20:30:41,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:30:41,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 20:30:41,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817041185] [2020-12-09 20:30:41,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 20:30:41,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:30:41,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 20:30:41,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:30:41,897 INFO L87 Difference]: Start difference. First operand 977 states and 1188 transitions. Second operand 3 states. [2020-12-09 20:30:44,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:30:44,375 INFO L93 Difference]: Finished difference Result 2091 states and 2634 transitions. [2020-12-09 20:30:44,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 20:30:44,376 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 180 [2020-12-09 20:30:44,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:30:44,381 INFO L225 Difference]: With dead ends: 2091 [2020-12-09 20:30:44,381 INFO L226 Difference]: Without dead ends: 1255 [2020-12-09 20:30:44,382 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 20:30:44,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-12-09 20:30:44,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 1116. [2020-12-09 20:30:44,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-12-09 20:30:44,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1337 transitions. [2020-12-09 20:30:44,398 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1337 transitions. Word has length 180 [2020-12-09 20:30:44,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:30:44,398 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1337 transitions. [2020-12-09 20:30:44,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 20:30:44,398 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1337 transitions. [2020-12-09 20:30:44,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-12-09 20:30:44,400 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:30:44,400 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-12-09 20:30:44,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 20:30:44,602 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:30:44,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:30:44,604 INFO L82 PathProgramCache]: Analyzing trace with hash -1947933650, now seen corresponding path program 1 times [2020-12-09 20:30:44,607 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:30:44,608 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [886806712] [2020-12-09 20:30:44,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 20:30:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:30:44,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 20:30:44,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:30:45,012 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 69 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:30:45,012 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:30:45,432 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 87 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:30:45,432 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [886806712] [2020-12-09 20:30:45,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [134998487] [2020-12-09 20:30:45,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt [2020-12-09 20:30:45,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:30:45,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 20:30:45,543 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:30:45,843 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:30:45,844 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 20:30:45,844 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 20:30:45,850 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:30:45,854 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 20:30:45,856 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 20:30:46,077 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 108 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:30:46,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:30:46,391 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 20:30:46,392 INFO L639 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-12-09 20:30:46,516 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 124 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:30:46,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438741632] [2020-12-09 20:30:46,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 20:30:46,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:30:46,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 20:30:46,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:30:47,041 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:30:47,041 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 20:30:47,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 20:30:47,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [4, 4, 8, 8] total 21 [2020-12-09 20:30:47,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559080913] [2020-12-09 20:30:47,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 20:30:47,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:30:47,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 20:30:47,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-12-09 20:30:47,043 INFO L87 Difference]: Start difference. First operand 1116 states and 1337 transitions. Second operand 7 states. [2020-12-09 20:30:49,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:30:49,033 INFO L93 Difference]: Finished difference Result 2146 states and 2583 transitions. [2020-12-09 20:30:49,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 20:30:49,034 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 189 [2020-12-09 20:30:49,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:30:49,037 INFO L225 Difference]: With dead ends: 2146 [2020-12-09 20:30:49,038 INFO L226 Difference]: Without dead ends: 1116 [2020-12-09 20:30:49,039 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 940 GetRequests, 919 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2020-12-09 20:30:49,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-12-09 20:30:49,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2020-12-09 20:30:49,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-12-09 20:30:49,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1332 transitions. [2020-12-09 20:30:49,055 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1332 transitions. Word has length 189 [2020-12-09 20:30:49,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:30:49,055 INFO L481 AbstractCegarLoop]: Abstraction has 1116 states and 1332 transitions. [2020-12-09 20:30:49,055 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 20:30:49,055 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1332 transitions. [2020-12-09 20:30:49,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-12-09 20:30:49,057 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:30:49,057 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-12-09 20:30:49,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt [2020-12-09 20:30:49,660 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:30:49,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:30:49,661 INFO L82 PathProgramCache]: Analyzing trace with hash -1189835144, now seen corresponding path program 1 times [2020-12-09 20:30:49,665 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 20:30:49,665 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [436840591] [2020-12-09 20:30:49,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-12-09 20:30:49,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:30:49,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 20:30:49,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:30:50,073 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 0 proven. 134 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:30:50,074 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:30:50,392 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 8 [2020-12-09 20:30:50,563 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 29 proven. 40 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-12-09 20:30:50,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [436840591] [2020-12-09 20:30:50,563 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1264863867] [2020-12-09 20:30:50,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/cvc4 Starting monitored process 11 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4 --incremental --print-success --lang smt [2020-12-09 20:30:50,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:30:50,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 20:30:50,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:30:50,884 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 20:30:50,885 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 20:30:50,959 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 125 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:30:50,959 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:30:51,123 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-12-09 20:30:51,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 20:30:51,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 4, 8] total 17 [2020-12-09 20:30:51,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910401022] [2020-12-09 20:30:51,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 20:30:51,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 20:30:51,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 20:30:51,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-12-09 20:30:51,125 INFO L87 Difference]: Start difference. First operand 1116 states and 1332 transitions. Second operand 5 states. [2020-12-09 20:30:53,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:30:53,401 INFO L93 Difference]: Finished difference Result 1394 states and 1655 transitions. [2020-12-09 20:30:53,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 20:30:53,402 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 211 [2020-12-09 20:30:53,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:30:53,403 INFO L225 Difference]: With dead ends: 1394 [2020-12-09 20:30:53,403 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 20:30:53,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 840 GetRequests, 825 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2020-12-09 20:30:53,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 20:30:53,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 20:30:53,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 20:30:53,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 20:30:53,405 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 211 [2020-12-09 20:30:53,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:30:53,405 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 20:30:53,405 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 20:30:53,405 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 20:30:53,405 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 20:30:53,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3,11 cvc4 --incremental --print-success --lang smt [2020-12-09 20:30:53,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 20:30:54,015 INFO L262 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-12-09 20:30:54,015 INFO L262 CegarLoopResult]: For program point L564(lines 564 582) no Hoare annotation was computed. [2020-12-09 20:30:54,015 INFO L262 CegarLoopResult]: For program point L333(lines 333 582) no Hoare annotation was computed. [2020-12-09 20:30:54,015 INFO L262 CegarLoopResult]: For program point L367(lines 367 582) no Hoare annotation was computed. [2020-12-09 20:30:54,015 INFO L262 CegarLoopResult]: For program point L301(lines 301 582) no Hoare annotation was computed. [2020-12-09 20:30:54,015 INFO L262 CegarLoopResult]: For program point L235(lines 235 582) no Hoare annotation was computed. [2020-12-09 20:30:54,015 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,015 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,015 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,015 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,015 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,016 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,016 INFO L262 CegarLoopResult]: For program point L533(lines 533 582) no Hoare annotation was computed. [2020-12-09 20:30:54,016 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-09 20:30:54,016 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-09 20:30:54,016 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-09 20:30:54,016 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-09 20:30:54,016 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-09 20:30:54,016 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-09 20:30:54,016 INFO L262 CegarLoopResult]: For program point L567(lines 567 582) no Hoare annotation was computed. [2020-12-09 20:30:54,016 INFO L262 CegarLoopResult]: For program point L435(lines 435 582) no Hoare annotation was computed. [2020-12-09 20:30:54,016 INFO L262 CegarLoopResult]: For program point L336(lines 336 582) no Hoare annotation was computed. [2020-12-09 20:30:54,016 INFO L262 CegarLoopResult]: For program point L270(lines 270 582) no Hoare annotation was computed. [2020-12-09 20:30:54,017 INFO L262 CegarLoopResult]: For program point L403(lines 403 582) no Hoare annotation was computed. [2020-12-09 20:30:54,017 INFO L262 CegarLoopResult]: For program point L370(lines 370 582) no Hoare annotation was computed. [2020-12-09 20:30:54,017 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,017 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,017 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,017 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,017 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,017 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,017 INFO L262 CegarLoopResult]: For program point L536(lines 536 582) no Hoare annotation was computed. [2020-12-09 20:30:54,017 INFO L262 CegarLoopResult]: For program point L503(lines 503 582) no Hoare annotation was computed. [2020-12-09 20:30:54,017 INFO L262 CegarLoopResult]: For program point L470(lines 470 582) no Hoare annotation was computed. [2020-12-09 20:30:54,018 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-09 20:30:54,018 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-09 20:30:54,018 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-09 20:30:54,018 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-09 20:30:54,018 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-09 20:30:54,018 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-09 20:30:54,018 INFO L262 CegarLoopResult]: For program point L339(lines 339 582) no Hoare annotation was computed. [2020-12-09 20:30:54,018 INFO L262 CegarLoopResult]: For program point L306(lines 306 582) no Hoare annotation was computed. [2020-12-09 20:30:54,018 INFO L262 CegarLoopResult]: For program point L241(lines 241 582) no Hoare annotation was computed. [2020-12-09 20:30:54,018 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,019 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,019 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,019 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,019 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,019 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,019 INFO L262 CegarLoopResult]: For program point L539(lines 539 582) no Hoare annotation was computed. [2020-12-09 20:30:54,019 INFO L262 CegarLoopResult]: For program point L440(lines 440 582) no Hoare annotation was computed. [2020-12-09 20:30:54,019 INFO L262 CegarLoopResult]: For program point L275(lines 275 582) no Hoare annotation was computed. [2020-12-09 20:30:54,019 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-09 20:30:54,019 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-09 20:30:54,020 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-09 20:30:54,020 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-09 20:30:54,020 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-09 20:30:54,020 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-09 20:30:54,020 INFO L262 CegarLoopResult]: For program point L573(lines 573 582) no Hoare annotation was computed. [2020-12-09 20:30:54,020 INFO L262 CegarLoopResult]: For program point L408(lines 408 582) no Hoare annotation was computed. [2020-12-09 20:30:54,020 INFO L262 CegarLoopResult]: For program point L375(lines 375 582) no Hoare annotation was computed. [2020-12-09 20:30:54,020 INFO L262 CegarLoopResult]: For program point L475(lines 475 582) no Hoare annotation was computed. [2020-12-09 20:30:54,020 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,020 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,020 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,021 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,021 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,021 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,021 INFO L262 CegarLoopResult]: For program point L509(lines 509 582) no Hoare annotation was computed. [2020-12-09 20:30:54,021 INFO L262 CegarLoopResult]: For program point L311(lines 311 582) no Hoare annotation was computed. [2020-12-09 20:30:54,021 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-09 20:30:54,021 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-09 20:30:54,021 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-09 20:30:54,021 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-09 20:30:54,021 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-09 20:30:54,021 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-09 20:30:54,021 INFO L262 CegarLoopResult]: For program point L345(lines 345 582) no Hoare annotation was computed. [2020-12-09 20:30:54,021 INFO L262 CegarLoopResult]: For program point L246(lines 246 582) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L544(lines 544 582) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L446(lines 446 582) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L413(lines 413 582) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L380(lines 380 582) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L281(lines 281 582) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L579(lines 579 582) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L249(lines 249 582) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L514(lines 514 582) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L481(lines 481 582) no Hoare annotation was computed. [2020-12-09 20:30:54,022 INFO L262 CegarLoopResult]: For program point L316(lines 316 582) no Hoare annotation was computed. [2020-12-09 20:30:54,023 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,023 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,023 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,023 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,023 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,023 INFO L262 CegarLoopResult]: For program point L350(lines 350 582) no Hoare annotation was computed. [2020-12-09 20:30:54,023 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 20:30:54,023 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-09 20:30:54,023 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-09 20:30:54,023 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-09 20:30:54,023 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-09 20:30:54,023 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-09 20:30:54,023 INFO L258 CegarLoopResult]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) (bvadd ~a4~0 (_ bv4294967282 32)))) (.cse1 (= (_ bv0 32) ~a12~0))) (or (and (= (_ bv2 32) ~a10~0) .cse0 .cse1) (and .cse0 (not (= (_ bv7 32) ~a19~0)) .cse1) (and .cse0 (= (_ bv1 32) ~a10~0) .cse1))) [2020-12-09 20:30:54,023 INFO L262 CegarLoopResult]: For program point L550(lines 550 582) no Hoare annotation was computed. [2020-12-09 20:30:54,023 INFO L262 CegarLoopResult]: For program point L418(lines 418 582) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L385(lines 385 582) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L220(lines 220 582) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L452(lines 452 582) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L287(lines 287 582) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L254(lines 254 582) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L519(lines 519 582) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L486(lines 486 582) no Hoare annotation was computed. [2020-12-09 20:30:54,024 INFO L265 CegarLoopResult]: At program point L586(lines 586 602) the Hoare annotation is: true [2020-12-09 20:30:54,024 INFO L262 CegarLoopResult]: For program point L388(lines 388 582) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L355(lines 355 582) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L322(lines 322 582) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L555(lines 555 582) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L225(lines 225 582) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L424(lines 424 582) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L259(lines 259 582) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,025 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L524(lines 524 582) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L491(lines 491 582) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L458(lines 458 582) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L293(lines 293 582) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L558(lines 558 582) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L393(lines 393 582) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L327(lines 327 582) no Hoare annotation was computed. [2020-12-09 20:30:54,026 INFO L258 CegarLoopResult]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (= (_ bv0 32) (bvadd ~a4~0 (_ bv4294967282 32)))) (.cse1 (= (_ bv0 32) ~a12~0))) (or (and (= (_ bv2 32) ~a10~0) .cse0 .cse1) (and .cse0 (not (= (_ bv7 32) ~a19~0)) .cse1) (and .cse0 (= (_ bv1 32) ~a10~0) .cse1))) [2020-12-09 20:30:54,026 INFO L262 CegarLoopResult]: For program point L361(lines 361 582) no Hoare annotation was computed. [2020-12-09 20:30:54,027 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,027 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,027 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,027 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,027 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-09 20:30:54,027 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,027 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,027 INFO L262 CegarLoopResult]: For program point L527(lines 527 582) no Hoare annotation was computed. [2020-12-09 20:30:54,027 INFO L262 CegarLoopResult]: For program point L296(lines 296 582) no Hoare annotation was computed. [2020-12-09 20:30:54,027 INFO L262 CegarLoopResult]: For program point L230(lines 230 582) no Hoare annotation was computed. [2020-12-09 20:30:54,027 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 125) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L429(lines 429 582) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L330(lines 330 582) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L264(lines 264 582) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L364(lines 364 582) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,028 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 20:30:54,029 INFO L262 CegarLoopResult]: For program point L497(lines 497 582) no Hoare annotation was computed. [2020-12-09 20:30:54,029 INFO L262 CegarLoopResult]: For program point L464(lines 464 582) no Hoare annotation was computed. [2020-12-09 20:30:54,029 INFO L262 CegarLoopResult]: For program point L398(lines 398 582) no Hoare annotation was computed. [2020-12-09 20:30:54,029 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-09 20:30:54,029 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-09 20:30:54,029 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-09 20:30:54,029 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-09 20:30:54,029 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-09 20:30:54,029 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-09 20:30:54,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:30:54 BoogieIcfgContainer [2020-12-09 20:30:54,042 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 20:30:54,043 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 20:30:54,043 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 20:30:54,043 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 20:30:54,043 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:30:29" (3/4) ... [2020-12-09 20:30:54,045 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 20:30:54,059 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 20:30:54,060 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 20:30:54,061 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 20:30:54,062 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 20:30:54,142 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_894d8fda-e9b8-494d-bbd4-ad7e6b1ba7f5/bin/utaipan/witness.graphml [2020-12-09 20:30:54,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 20:30:54,143 INFO L168 Benchmark]: Toolchain (without parser) took 27408.52 ms. Allocated memory was 48.2 MB in the beginning and 130.0 MB in the end (delta: 81.8 MB). Free memory was 22.7 MB in the beginning and 56.0 MB in the end (delta: -33.3 MB). Peak memory consumption was 49.2 MB. Max. memory is 16.1 GB. [2020-12-09 20:30:54,143 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 48.2 MB. Free memory is still 30.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:30:54,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 447.50 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 33.2 MB in the beginning and 37.2 MB in the end (delta: -4.0 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2020-12-09 20:30:54,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.04 ms. Allocated memory is still 60.8 MB. Free memory was 37.2 MB in the beginning and 31.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 20:30:54,144 INFO L168 Benchmark]: Boogie Preprocessor took 43.65 ms. Allocated memory is still 60.8 MB. Free memory was 31.7 MB in the beginning and 27.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 20:30:54,144 INFO L168 Benchmark]: RCFGBuilder took 2104.25 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 27.2 MB in the beginning and 39.9 MB in the end (delta: -12.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-12-09 20:30:54,144 INFO L168 Benchmark]: TraceAbstraction took 24649.28 ms. Allocated memory was 73.4 MB in the beginning and 130.0 MB in the end (delta: 56.6 MB). Free memory was 39.5 MB in the beginning and 71.0 MB in the end (delta: -31.5 MB). Peak memory consumption was 67.0 MB. Max. memory is 16.1 GB. [2020-12-09 20:30:54,145 INFO L168 Benchmark]: Witness Printer took 99.26 ms. Allocated memory is still 130.0 MB. Free memory was 71.0 MB in the beginning and 56.0 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 20:30:54,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 48.2 MB. Free memory is still 30.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 447.50 ms. Allocated memory was 48.2 MB in the beginning and 60.8 MB in the end (delta: 12.6 MB). Free memory was 33.2 MB in the beginning and 37.2 MB in the end (delta: -4.0 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.04 ms. Allocated memory is still 60.8 MB. Free memory was 37.2 MB in the beginning and 31.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.65 ms. Allocated memory is still 60.8 MB. Free memory was 31.7 MB in the beginning and 27.2 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2104.25 ms. Allocated memory was 60.8 MB in the beginning and 73.4 MB in the end (delta: 12.6 MB). Free memory was 27.2 MB in the beginning and 39.9 MB in the end (delta: -12.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 24649.28 ms. Allocated memory was 73.4 MB in the beginning and 130.0 MB in the end (delta: 56.6 MB). Free memory was 39.5 MB in the beginning and 71.0 MB in the end (delta: -31.5 MB). Peak memory consumption was 67.0 MB. Max. memory is 16.1 GB. * Witness Printer took 99.26 ms. Allocated memory is still 130.0 MB. Free memory was 71.0 MB in the beginning and 56.0 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 125]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((2bv32 == a10 && 0bv32 == ~bvadd64(a4, 4294967282bv32)) && 0bv32 == a12) || ((0bv32 == ~bvadd64(a4, 4294967282bv32) && !(7bv32 == a19)) && 0bv32 == a12)) || ((0bv32 == ~bvadd64(a4, 4294967282bv32) && 1bv32 == a10) && 0bv32 == a12) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((2bv32 == a10 && 0bv32 == ~bvadd64(a4, 4294967282bv32)) && 0bv32 == a12) || ((0bv32 == ~bvadd64(a4, 4294967282bv32) && !(7bv32 == a19)) && 0bv32 == a12)) || ((0bv32 == ~bvadd64(a4, 4294967282bv32) && 1bv32 == a10) && 0bv32 == a12) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 24.3s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 17.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 668 SDtfs, 1318 SDslu, 44 SDs, 0 SdLazy, 2859 SolverSat, 571 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2362 GetRequests, 2319 SyntacticMatches, 2 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1116occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 159 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 27 NumberOfFragments, 77 HoareAnnotationTreeSize, 3 FomulaSimplifications, 846 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 66 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 1575 NumberOfCodeBlocks, 1575 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 2361 ConstructedInterpolants, 0 QuantifiedInterpolants, 3171267 SizeOfPredicates, 28 NumberOfNonLiveVariables, 2094 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 14 InterpolantComputations, 7 PerfectInterpolantSequences, 1120/1487 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 RESULT: Ultimate proved your program to be correct! Received shutdown request...