./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label49.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label49.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs --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 542216decab4eb809f5dc567967fa4ce316925bd ....................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label49.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs --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 542216decab4eb809f5dc567967fa4ce316925bd ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:19:24,908 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:19:24,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:19:24,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:19:24,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:19:24,966 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:19:24,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:19:24,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:19:24,977 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:19:24,985 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:19:24,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:19:24,988 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:19:24,988 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:19:24,991 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:19:24,993 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:19:24,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:19:25,002 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:19:25,003 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:19:25,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:19:25,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:19:25,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:19:25,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:19:25,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:19:25,026 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:19:25,033 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:19:25,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:19:25,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:19:25,036 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:19:25,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:19:25,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:19:25,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:19:25,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:19:25,043 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:19:25,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:19:25,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:19:25,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:19:25,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:19:25,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:19:25,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:19:25,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:19:25,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:19:25,050 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:19:25,100 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:19:25,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:19:25,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:19:25,102 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:19:25,102 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:19:25,103 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:19:25,103 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:19:25,103 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:19:25,110 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:19:25,110 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:19:25,111 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:19:25,111 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:19:25,112 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:19:25,112 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:19:25,112 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:19:25,113 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:19:25,113 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:19:25,113 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:19:25,114 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:19:25,114 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:19:25,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:19:25,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:19:25,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:19:25,115 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:19:25,115 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:19:25,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:19:25,115 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:19:25,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:19:25,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:19:25,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:19:25,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:19:25,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:19:25,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:19:25,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:19:25,119 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:19:25,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:19:25,119 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:19:25,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:19:25,120 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:19:25,120 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 542216decab4eb809f5dc567967fa4ce316925bd [2021-10-16 02:19:25,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:19:25,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:19:25,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:19:25,423 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:19:25,423 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:19:25,424 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/eca-rers2012/Problem10_label49.c [2021-10-16 02:19:25,493 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/data/b38af5603/14bd115cded24603bb2604a4e663fcff/FLAG5d3be3155 [2021-10-16 02:19:26,100 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:19:26,100 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/sv-benchmarks/c/eca-rers2012/Problem10_label49.c [2021-10-16 02:19:26,112 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/data/b38af5603/14bd115cded24603bb2604a4e663fcff/FLAG5d3be3155 [2021-10-16 02:19:26,317 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/data/b38af5603/14bd115cded24603bb2604a4e663fcff [2021-10-16 02:19:26,320 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:19:26,321 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:19:26,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:19:26,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:19:26,335 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:19:26,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:19:26" (1/1) ... [2021-10-16 02:19:26,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d1dffbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:19:26, skipping insertion in model container [2021-10-16 02:19:26,339 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:19:26" (1/1) ... [2021-10-16 02:19:26,346 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:19:26,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:19:26,620 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/sv-benchmarks/c/eca-rers2012/Problem10_label49.c[2714,2727] [2021-10-16 02:19:26,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:19:26,852 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:19:26,884 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/sv-benchmarks/c/eca-rers2012/Problem10_label49.c[2714,2727] [2021-10-16 02:19:26,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:19:27,002 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:19:27,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:19:27 WrapperNode [2021-10-16 02:19:27,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:19:27,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:19:27,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:19:27,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:19:27,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:19:27" (1/1) ... [2021-10-16 02:19:27,036 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:19:27" (1/1) ... [2021-10-16 02:19:27,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:19:27,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:19:27,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:19:27,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:19:27,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:19:27" (1/1) ... [2021-10-16 02:19:27,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:19:27" (1/1) ... [2021-10-16 02:19:27,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:19:27" (1/1) ... [2021-10-16 02:19:27,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:19:27" (1/1) ... [2021-10-16 02:19:27,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:19:27" (1/1) ... [2021-10-16 02:19:27,231 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:19:27" (1/1) ... [2021-10-16 02:19:27,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:19:27" (1/1) ... [2021-10-16 02:19:27,255 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:19:27,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:19:27,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:19:27,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:19:27,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:19:27" (1/1) ... [2021-10-16 02:19:27,268 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:19:27,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:19:27,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:19:27,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:19:27,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:19:27,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:19:27,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:19:27,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:19:35,974 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:19:35,974 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:19:35,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:19:35 BoogieIcfgContainer [2021-10-16 02:19:35,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:19:35,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:19:35,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:19:35,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:19:35,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:19:26" (1/3) ... [2021-10-16 02:19:35,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed938be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:19:35, skipping insertion in model container [2021-10-16 02:19:35,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:19:27" (2/3) ... [2021-10-16 02:19:35,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed938be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:19:35, skipping insertion in model container [2021-10-16 02:19:35,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:19:35" (3/3) ... [2021-10-16 02:19:35,986 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label49.c [2021-10-16 02:19:35,991 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:19:35,991 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:19:36,035 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:19:36,042 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:19:36,042 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:19:36,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:19:36,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-10-16 02:19:36,062 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:19:36,063 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-10-16 02:19:36,063 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:19:36,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:19:36,070 INFO L82 PathProgramCache]: Analyzing trace with hash 885163547, now seen corresponding path program 1 times [2021-10-16 02:19:36,079 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:19:36,080 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385316329] [2021-10-16 02:19:36,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:19:36,081 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:19:36,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:19:36,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:19:36,262 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:19:36,262 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385316329] [2021-10-16 02:19:36,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385316329] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:19:36,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:19:36,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:19:36,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886168437] [2021-10-16 02:19:36,270 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:19:36,270 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:19:36,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:19:36,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:19:36,286 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:19:36,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:19:36,369 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2021-10-16 02:19:36,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:19:36,371 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-10-16 02:19:36,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:19:36,379 INFO L225 Difference]: With dead ends: 23 [2021-10-16 02:19:36,379 INFO L226 Difference]: Without dead ends: 11 [2021-10-16 02:19:36,382 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 02:19:36,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-16 02:19:36,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2021-10-16 02:19:36,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:19:36,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-16 02:19:36,416 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2021-10-16 02:19:36,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:19:36,417 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-16 02:19:36,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:19:36,418 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-16 02:19:36,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:19:36,418 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:19:36,419 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2021-10-16 02:19:36,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:19:36,419 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:19:36,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:19:36,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1457702589, now seen corresponding path program 1 times [2021-10-16 02:19:36,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:19:36,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [16985689] [2021-10-16 02:19:36,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:19:36,422 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:19:36,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:19:36,944 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:19:36,944 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:19:36,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [16985689] [2021-10-16 02:19:36,946 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [16985689] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-16 02:19:36,946 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478977912] [2021-10-16 02:19:36,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:19:36,947 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:19:36,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:19:36,955 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:19:36,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-16 02:19:37,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:19:37,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 02:19:37,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:19:51,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:19:51,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:20:10,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2021-10-16 02:20:10,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1417661443] [2021-10-16 02:20:10,285 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2021-10-16 02:20:10,286 INFO L166 IcfgInterpreter]: Building call graph [2021-10-16 02:20:10,290 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-10-16 02:20:10,296 INFO L176 IcfgInterpreter]: Starting interpretation [2021-10-16 02:20:10,296 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-10-16 02:20:10,327 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:20:10,329 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:20:10,330 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:20:10,331 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-10-16 02:20:10,331 WARN L197 QuantifierPusher]: Ignoring assumption. [2021-10-16 02:20:10,332 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:20:10,333 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 12 [2021-10-16 02:20:10,334 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-16 02:20:10,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:20:10,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:20:10,374 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-16 02:20:10,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 9 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2021-10-16 02:20:10,382 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:20:10,384 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:20:10,384 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:20:10,388 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-10-16 02:20:10,388 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-10-16 02:20:10,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:20:10,410 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:20:10,412 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-10-16 02:20:10,414 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 152 [2021-10-16 02:20:10,414 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-10-16 02:20:10,415 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:149, output treesize:152 [2021-10-16 02:20:10,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:20:10,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:20:10,642 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: No corresponding IProgramVar for |v_#valid_10| at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:83) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.constructTermVarsProc(BasicPredicateFactory.java:92) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.BasicPredicateFactory.newPredicate(BasicPredicateFactory.java:81) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.predicate(SymbolicTools.java:174) 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.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:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:608) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) 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) [2021-10-16 02:20:10,647 INFO L168 Benchmark]: Toolchain (without parser) took 44325.03 ms. Allocated memory was 111.1 MB in the beginning and 1.2 GB in the end (delta: 1.1 GB). Free memory was 69.4 MB in the beginning and 559.5 MB in the end (delta: -490.1 MB). Peak memory consumption was 587.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:20:10,647 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 111.1 MB. Free memory is still 87.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:20:10,648 INFO L168 Benchmark]: CACSL2BoogieTranslator took 671.89 ms. Allocated memory is still 111.1 MB. Free memory was 69.2 MB in the beginning and 68.4 MB in the end (delta: 767.2 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 02:20:10,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 117.34 ms. Allocated memory is still 111.1 MB. Free memory was 68.4 MB in the beginning and 60.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-16 02:20:10,649 INFO L168 Benchmark]: Boogie Preprocessor took 135.57 ms. Allocated memory is still 111.1 MB. Free memory was 60.3 MB in the beginning and 55.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:20:10,649 INFO L168 Benchmark]: RCFGBuilder took 8718.72 ms. Allocated memory was 111.1 MB in the beginning and 299.9 MB in the end (delta: 188.7 MB). Free memory was 55.7 MB in the beginning and 197.0 MB in the end (delta: -141.3 MB). Peak memory consumption was 143.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:20:10,650 INFO L168 Benchmark]: TraceAbstraction took 34667.77 ms. Allocated memory was 299.9 MB in the beginning and 1.2 GB in the end (delta: 889.2 MB). Free memory was 196.0 MB in the beginning and 559.5 MB in the end (delta: -363.5 MB). Peak memory consumption was 525.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:20:10,656 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 111.1 MB. Free memory is still 87.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 671.89 ms. Allocated memory is still 111.1 MB. Free memory was 69.2 MB in the beginning and 68.4 MB in the end (delta: 767.2 kB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 117.34 ms. Allocated memory is still 111.1 MB. Free memory was 68.4 MB in the beginning and 60.3 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 135.57 ms. Allocated memory is still 111.1 MB. Free memory was 60.3 MB in the beginning and 55.7 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 8718.72 ms. Allocated memory was 111.1 MB in the beginning and 299.9 MB in the end (delta: 188.7 MB). Free memory was 55.7 MB in the beginning and 197.0 MB in the end (delta: -141.3 MB). Peak memory consumption was 143.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 34667.77 ms. Allocated memory was 299.9 MB in the beginning and 1.2 GB in the end (delta: 889.2 MB). Free memory was 196.0 MB in the beginning and 559.5 MB in the end (delta: -363.5 MB). Peak memory consumption was 525.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: No corresponding IProgramVar for |v_#valid_10| de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: No corresponding IProgramVar for |v_#valid_10|: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermVarsProc.computeTermVarsProc(TermVarsProc.java:97) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-10-16 02:20:10,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:20:13,201 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:20:13,203 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:20:13,249 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:20:13,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:20:13,256 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:20:13,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:20:13,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:20:13,268 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:20:13,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:20:13,278 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:20:13,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:20:13,280 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:20:13,283 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:20:13,286 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:20:13,289 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:20:13,291 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:20:13,292 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:20:13,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:20:13,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:20:13,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:20:13,306 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:20:13,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:20:13,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:20:13,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:20:13,312 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:20:13,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:20:13,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:20:13,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:20:13,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:20:13,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:20:13,316 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:20:13,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:20:13,318 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:20:13,319 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:20:13,319 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:20:13,320 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:20:13,320 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:20:13,320 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:20:13,321 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:20:13,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:20:13,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:20:13,349 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:20:13,350 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:20:13,351 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:20:13,351 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:20:13,351 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:20:13,351 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:20:13,351 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:20:13,352 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:20:13,352 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:20:13,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:20:13,353 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:20:13,353 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:20:13,353 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:20:13,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:20:13,354 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:20:13,354 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:20:13,354 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:20:13,354 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:20:13,354 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:20:13,355 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:20:13,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:20:13,355 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:20:13,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:20:13,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:20:13,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:20:13,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:20:13,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:20:13,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:20:13,356 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:20:13,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:20:13,357 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:20:13,357 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:20:13,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:20:13,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:20:13,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:20:13,358 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 542216decab4eb809f5dc567967fa4ce316925bd [2021-10-16 02:20:13,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:20:13,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:20:13,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:20:13,844 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:20:13,846 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:20:13,847 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/eca-rers2012/Problem10_label49.c [2021-10-16 02:20:13,916 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/data/ab6d8e838/f0ecb29cede649e3b9d0babb57d51a8b/FLAG985ed883c [2021-10-16 02:20:14,609 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:20:14,614 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/sv-benchmarks/c/eca-rers2012/Problem10_label49.c [2021-10-16 02:20:14,630 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/data/ab6d8e838/f0ecb29cede649e3b9d0babb57d51a8b/FLAG985ed883c [2021-10-16 02:20:14,828 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/data/ab6d8e838/f0ecb29cede649e3b9d0babb57d51a8b [2021-10-16 02:20:14,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:20:14,833 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:20:14,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:20:14,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:20:14,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:20:14,843 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:20:14" (1/1) ... [2021-10-16 02:20:14,844 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@537d3e4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:20:14, skipping insertion in model container [2021-10-16 02:20:14,845 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:20:14" (1/1) ... [2021-10-16 02:20:14,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:20:14,913 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:20:15,092 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/sv-benchmarks/c/eca-rers2012/Problem10_label49.c[2714,2727] [2021-10-16 02:20:15,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:20:15,446 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:20:15,483 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/sv-benchmarks/c/eca-rers2012/Problem10_label49.c[2714,2727] [2021-10-16 02:20:15,622 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:20:15,638 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:20:15,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:20:15 WrapperNode [2021-10-16 02:20:15,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:20:15,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:20:15,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:20:15,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:20:15,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:20:15" (1/1) ... [2021-10-16 02:20:15,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:20:15" (1/1) ... [2021-10-16 02:20:15,784 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:20:15,785 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:20:15,785 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:20:15,785 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:20:15,793 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:20:15" (1/1) ... [2021-10-16 02:20:15,794 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:20:15" (1/1) ... [2021-10-16 02:20:15,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:20:15" (1/1) ... [2021-10-16 02:20:15,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:20:15" (1/1) ... [2021-10-16 02:20:15,829 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:20:15" (1/1) ... [2021-10-16 02:20:15,840 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:20:15" (1/1) ... [2021-10-16 02:20:15,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:20:15" (1/1) ... [2021-10-16 02:20:15,870 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:20:15,871 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:20:15,871 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:20:15,871 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:20:15,872 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:20:15" (1/1) ... [2021-10-16 02:20:15,890 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:20:15,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:20:15,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:20:15,941 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:20:15,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:20:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:20:15,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:20:15,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:20:19,169 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:20:19,170 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-10-16 02:20:19,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:20:19 BoogieIcfgContainer [2021-10-16 02:20:19,175 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:20:19,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:20:19,180 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:20:19,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:20:19,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:20:14" (1/3) ... [2021-10-16 02:20:19,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@799928bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:20:19, skipping insertion in model container [2021-10-16 02:20:19,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:20:15" (2/3) ... [2021-10-16 02:20:19,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@799928bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:20:19, skipping insertion in model container [2021-10-16 02:20:19,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:20:19" (3/3) ... [2021-10-16 02:20:19,187 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label49.c [2021-10-16 02:20:19,194 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:20:19,194 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:20:19,272 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:20:19,280 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 02:20:19,281 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:20:19,316 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:20:19,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-16 02:20:19,333 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:20:19,334 INFO L512 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] [2021-10-16 02:20:19,337 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:20:19,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:20:19,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1644072970, now seen corresponding path program 1 times [2021-10-16 02:20:19,360 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:20:19,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1517981673] [2021-10-16 02:20:19,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:20:19,366 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:20:19,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:20:19,372 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:20:19,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:20:19,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:20:19,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:20:19,446 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:20:19,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:20:19,669 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:20:19,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:20:19,817 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:20:19,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1517981673] [2021-10-16 02:20:19,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1517981673] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:20:19,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:20:19,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:20:19,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815951764] [2021-10-16 02:20:19,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:20:19,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:20:19,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:20:19,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:20:19,843 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:20:33,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:20:33,423 INFO L93 Difference]: Finished difference Result 709 states and 1261 transitions. [2021-10-16 02:20:33,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:20:33,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-16 02:20:33,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:20:33,442 INFO L225 Difference]: With dead ends: 709 [2021-10-16 02:20:33,443 INFO L226 Difference]: Without dead ends: 421 [2021-10-16 02:20:33,447 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.7ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:20:33,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-16 02:20:33,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2021-10-16 02:20:33,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.3952380952380952) internal successors, (586), 420 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:20:33,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 586 transitions. [2021-10-16 02:20:33,515 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 586 transitions. Word has length 22 [2021-10-16 02:20:33,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:20:33,515 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 586 transitions. [2021-10-16 02:20:33,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:20:33,516 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 586 transitions. [2021-10-16 02:20:33,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2021-10-16 02:20:33,536 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:20:33,537 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-16 02:20:33,553 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:20:33,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:20:33,748 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:20:33,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:20:33,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1186072980, now seen corresponding path program 1 times [2021-10-16 02:20:33,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:20:33,751 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [614997721] [2021-10-16 02:20:33,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:20:33,752 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:20:33,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:20:33,753 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:20:33,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:20:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:20:33,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:20:33,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:20:34,282 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:20:34,282 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:20:34,688 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:20:34,688 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:20:34,688 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [614997721] [2021-10-16 02:20:34,689 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [614997721] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:20:34,689 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:20:34,689 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:20:34,689 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274266027] [2021-10-16 02:20:34,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:20:34,691 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:20:34,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:20:34,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:20:34,693 INFO L87 Difference]: Start difference. First operand 421 states and 586 transitions. Second operand has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:20:39,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:20:39,515 INFO L93 Difference]: Finished difference Result 1396 states and 1988 transitions. [2021-10-16 02:20:39,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:20:39,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2021-10-16 02:20:39,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:20:39,525 INFO L225 Difference]: With dead ends: 1396 [2021-10-16 02:20:39,526 INFO L226 Difference]: Without dead ends: 977 [2021-10-16 02:20:39,529 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:20:39,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2021-10-16 02:20:39,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 838. [2021-10-16 02:20:39,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.3369175627240144) internal successors, (1119), 837 states have internal predecessors, (1119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:20:39,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1119 transitions. [2021-10-16 02:20:39,581 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1119 transitions. Word has length 92 [2021-10-16 02:20:39,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:20:39,582 INFO L470 AbstractCegarLoop]: Abstraction has 838 states and 1119 transitions. [2021-10-16 02:20:39,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.75) internal successors, (163), 3 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:20:39,583 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1119 transitions. [2021-10-16 02:20:39,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2021-10-16 02:20:39,588 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:20:39,588 INFO L512 BasicCegarLoop]: trace histogram [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] [2021-10-16 02:20:39,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:20:39,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:20:39,799 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:20:39,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:20:39,800 INFO L82 PathProgramCache]: Analyzing trace with hash -751446652, now seen corresponding path program 1 times [2021-10-16 02:20:39,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:20:39,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [981382547] [2021-10-16 02:20:39,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:20:39,802 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:20:39,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:20:39,807 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:20:39,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:20:39,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:20:39,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:20:39,977 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:20:40,558 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:20:40,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:20:43,960 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:20:43,961 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:20:43,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [981382547] [2021-10-16 02:20:43,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [981382547] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:20:43,961 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2002111703] [2021-10-16 02:20:43,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:20:43,962 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:20:43,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:20:43,964 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:20:43,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-10-16 02:20:44,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:20:44,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:20:44,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:20:44,565 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:20:44,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:20:44,820 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:20:44,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2002111703] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:20:44,821 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 2 imperfect interpolant sequences. [2021-10-16 02:20:44,821 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4, 4] total 9 [2021-10-16 02:20:44,821 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356421203] [2021-10-16 02:20:44,822 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:20:44,822 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:20:44,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:20:44,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:20:44,824 INFO L87 Difference]: Start difference. First operand 838 states and 1119 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:20:49,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:20:49,016 INFO L93 Difference]: Finished difference Result 2091 states and 2885 transitions. [2021-10-16 02:20:49,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:20:49,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 97 [2021-10-16 02:20:49,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:20:49,028 INFO L225 Difference]: With dead ends: 2091 [2021-10-16 02:20:49,029 INFO L226 Difference]: Without dead ends: 1394 [2021-10-16 02:20:49,030 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 301.0ms TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-16 02:20:49,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-10-16 02:20:49,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2021-10-16 02:20:49,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.3129935391241925) internal successors, (1829), 1393 states have internal predecessors, (1829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:20:49,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1829 transitions. [2021-10-16 02:20:49,089 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1829 transitions. Word has length 97 [2021-10-16 02:20:49,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:20:49,091 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 1829 transitions. [2021-10-16 02:20:49,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:20:49,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1829 transitions. [2021-10-16 02:20:49,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2021-10-16 02:20:49,108 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:20:49,109 INFO L512 BasicCegarLoop]: trace histogram [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, 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] [2021-10-16 02:20:49,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:20:49,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:20:49,522 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:20:49,522 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:20:49,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:20:49,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1975823509, now seen corresponding path program 1 times [2021-10-16 02:20:49,527 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:20:49,527 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135340524] [2021-10-16 02:20:49,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:20:49,528 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:20:49,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:20:49,538 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:20:49,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:20:49,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:20:49,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:20:49,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:20:50,391 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:20:50,391 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:20:51,448 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:20:51,449 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:20:51,449 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135340524] [2021-10-16 02:20:51,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2135340524] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:20:51,450 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:20:51,450 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-16 02:20:51,450 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016815843] [2021-10-16 02:20:51,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:20:51,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:20:51,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:20:51,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:20:51,455 INFO L87 Difference]: Start difference. First operand 1394 states and 1829 transitions. Second operand has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:20:55,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:20:55,622 INFO L93 Difference]: Finished difference Result 2647 states and 3507 transitions. [2021-10-16 02:20:55,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:20:55,625 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 181 [2021-10-16 02:20:55,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:20:55,634 INFO L225 Difference]: With dead ends: 2647 [2021-10-16 02:20:55,634 INFO L226 Difference]: Without dead ends: 1394 [2021-10-16 02:20:55,636 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 358 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:20:55,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2021-10-16 02:20:55,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1394. [2021-10-16 02:20:55,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.2412060301507537) internal successors, (1729), 1393 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:20:55,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1729 transitions. [2021-10-16 02:20:55,683 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1729 transitions. Word has length 181 [2021-10-16 02:20:55,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:20:55,683 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 1729 transitions. [2021-10-16 02:20:55,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 4 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:20:55,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1729 transitions. [2021-10-16 02:20:55,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2021-10-16 02:20:55,688 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:20:55,688 INFO L512 BasicCegarLoop]: trace histogram [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, 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] [2021-10-16 02:20:55,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:20:55,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:20:55,901 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:20:55,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:20:55,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1838444835, now seen corresponding path program 1 times [2021-10-16 02:20:55,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:20:55,903 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [319635778] [2021-10-16 02:20:55,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:20:55,904 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:20:55,904 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:20:55,912 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:20:55,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-16 02:20:56,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:20:56,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 02:20:56,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:20:57,553 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 39 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:20:57,554 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:21:02,244 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 39 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:21:02,244 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:21:02,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [319635778] [2021-10-16 02:21:02,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [319635778] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:21:02,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1279843631] [2021-10-16 02:21:02,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:21:02,246 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:21:02,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:21:02,254 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:21:02,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2021-10-16 02:21:03,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:21:03,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:21:03,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:21:04,914 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 39 proven. 48 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-16 02:21:04,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:21:05,420 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-10-16 02:21:05,421 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1279843631] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:21:05,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2021-10-16 02:21:05,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3, 6] total 11 [2021-10-16 02:21:05,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286377071] [2021-10-16 02:21:05,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 02:21:05,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:21:05,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 02:21:05,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-16 02:21:05,424 INFO L87 Difference]: Start difference. First operand 1394 states and 1729 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:21:08,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:21:08,484 INFO L93 Difference]: Finished difference Result 2091 states and 2566 transitions. [2021-10-16 02:21:08,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 02:21:08,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 192 [2021-10-16 02:21:08,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:21:08,499 INFO L225 Difference]: With dead ends: 2091 [2021-10-16 02:21:08,499 INFO L226 Difference]: Without dead ends: 2089 [2021-10-16 02:21:08,500 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 764 GetRequests, 755 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 419.2ms TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-10-16 02:21:08,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2021-10-16 02:21:08,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 1394. [2021-10-16 02:21:08,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1394 states, 1393 states have (on average 1.2412060301507537) internal successors, (1729), 1393 states have internal predecessors, (1729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:21:08,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1394 states to 1394 states and 1729 transitions. [2021-10-16 02:21:08,543 INFO L78 Accepts]: Start accepts. Automaton has 1394 states and 1729 transitions. Word has length 192 [2021-10-16 02:21:08,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:21:08,544 INFO L470 AbstractCegarLoop]: Abstraction has 1394 states and 1729 transitions. [2021-10-16 02:21:08,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:21:08,544 INFO L276 IsEmpty]: Start isEmpty. Operand 1394 states and 1729 transitions. [2021-10-16 02:21:08,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2021-10-16 02:21:08,555 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:21:08,556 INFO L512 BasicCegarLoop]: trace histogram [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, 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] [2021-10-16 02:21:08,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-16 02:21:08,771 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2021-10-16 02:21:08,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:21:08,969 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:21:08,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:21:08,970 INFO L82 PathProgramCache]: Analyzing trace with hash 79128916, now seen corresponding path program 1 times [2021-10-16 02:21:08,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:21:08,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1993046721] [2021-10-16 02:21:08,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:21:08,973 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:21:08,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:21:08,974 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:21:09,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-16 02:21:09,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:21:09,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-16 02:21:09,674 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:21:10,308 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-16 02:21:10,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:21:11,070 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-16 02:21:11,071 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:21:11,071 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1993046721] [2021-10-16 02:21:11,071 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1993046721] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:21:11,072 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:21:11,072 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-10-16 02:21:11,072 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936347610] [2021-10-16 02:21:11,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 02:21:11,073 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:21:11,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 02:21:11,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:21:11,075 INFO L87 Difference]: Start difference. First operand 1394 states and 1729 transitions. Second operand has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:21:14,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:21:14,545 INFO L93 Difference]: Finished difference Result 4037 states and 5017 transitions. [2021-10-16 02:21:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:21:14,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 251 [2021-10-16 02:21:14,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:21:14,558 INFO L225 Difference]: With dead ends: 4037 [2021-10-16 02:21:14,558 INFO L226 Difference]: Without dead ends: 2784 [2021-10-16 02:21:14,560 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 498 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-16 02:21:14,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2784 states. [2021-10-16 02:21:14,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2784 to 1811. [2021-10-16 02:21:14,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1810 states have (on average 1.158011049723757) internal successors, (2096), 1810 states have internal predecessors, (2096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:21:14,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2096 transitions. [2021-10-16 02:21:14,622 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2096 transitions. Word has length 251 [2021-10-16 02:21:14,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:21:14,622 INFO L470 AbstractCegarLoop]: Abstraction has 1811 states and 2096 transitions. [2021-10-16 02:21:14,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:21:14,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2096 transitions. [2021-10-16 02:21:14,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2021-10-16 02:21:14,630 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:21:14,631 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:21:14,649 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-16 02:21:14,846 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:21:14,846 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:21:14,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:21:14,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1801365689, now seen corresponding path program 1 times [2021-10-16 02:21:14,850 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:21:14,850 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [516461744] [2021-10-16 02:21:14,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:21:14,850 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:21:14,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:21:14,851 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:21:14,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-16 02:21:15,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:21:15,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:21:15,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:21:16,868 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 186 proven. 72 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-16 02:21:16,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:21:20,271 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 204 proven. 54 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-16 02:21:20,272 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:21:20,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [516461744] [2021-10-16 02:21:20,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [516461744] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:21:20,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1792470094] [2021-10-16 02:21:20,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:21:20,273 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:21:20,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:21:20,276 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:21:20,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2021-10-16 02:21:21,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:21:21,583 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 02:21:21,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:21:24,674 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 165 proven. 75 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-16 02:21:24,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:21:27,234 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 202 proven. 38 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-16 02:21:27,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1792470094] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:21:27,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39328311] [2021-10-16 02:21:27,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:21:27,236 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:21:27,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:21:27,238 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:21:27,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-16 02:21:28,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:21:29,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 02:21:29,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:21:31,267 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-16 02:21:31,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:21:33,539 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 240 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-10-16 02:21:33,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39328311] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:21:33,540 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 4 imperfect interpolant sequences. [2021-10-16 02:21:33,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [4, 4, 7, 7] total 20 [2021-10-16 02:21:33,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934492019] [2021-10-16 02:21:33,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 02:21:33,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:21:33,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 02:21:33,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2021-10-16 02:21:33,543 INFO L87 Difference]: Start difference. First operand 1811 states and 2096 transitions. Second operand has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 6 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:21:36,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:21:36,195 INFO L93 Difference]: Finished difference Result 3536 states and 4101 transitions. [2021-10-16 02:21:36,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 02:21:36,196 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 6 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 308 [2021-10-16 02:21:36,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:21:36,205 INFO L225 Difference]: With dead ends: 3536 [2021-10-16 02:21:36,205 INFO L226 Difference]: Without dead ends: 1811 [2021-10-16 02:21:36,208 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1842 GetRequests, 1821 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 910.5ms TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2021-10-16 02:21:36,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2021-10-16 02:21:36,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1811. [2021-10-16 02:21:36,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1811 states, 1810 states have (on average 1.1541436464088397) internal successors, (2089), 1810 states have internal predecessors, (2089), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:21:36,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1811 states to 1811 states and 2089 transitions. [2021-10-16 02:21:36,251 INFO L78 Accepts]: Start accepts. Automaton has 1811 states and 2089 transitions. Word has length 308 [2021-10-16 02:21:36,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:21:36,252 INFO L470 AbstractCegarLoop]: Abstraction has 1811 states and 2089 transitions. [2021-10-16 02:21:36,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 6 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:21:36,253 INFO L276 IsEmpty]: Start isEmpty. Operand 1811 states and 2089 transitions. [2021-10-16 02:21:36,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2021-10-16 02:21:36,261 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:21:36,261 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:21:36,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-16 02:21:36,502 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-16 02:21:36,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2021-10-16 02:21:36,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt [2021-10-16 02:21:36,882 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:21:36,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:21:36,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1635215713, now seen corresponding path program 1 times [2021-10-16 02:21:36,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:21:36,884 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885076892] [2021-10-16 02:21:36,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:21:36,885 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:21:36,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:21:36,887 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:21:36,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-10-16 02:21:38,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:21:38,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-16 02:21:38,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:21:39,623 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 222 proven. 72 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-16 02:21:39,623 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:21:54,291 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 222 proven. 72 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-10-16 02:21:54,292 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:21:54,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885076892] [2021-10-16 02:21:54,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885076892] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:21:54,292 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [94434712] [2021-10-16 02:21:54,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:21:54,292 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:21:54,292 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:21:54,293 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:21:54,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2021-10-16 02:21:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:21:56,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-16 02:21:56,746 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:22:03,241 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 222 proven. 20 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-16 02:22:03,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:22:06,702 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 222 proven. 20 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-16 02:22:06,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [94434712] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:22:06,702 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646460644] [2021-10-16 02:22:06,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:22:06,703 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:22:06,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:22:06,704 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:22:06,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-10-16 02:22:09,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:22:09,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:22:09,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:22:13,929 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 225 proven. 17 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-16 02:22:13,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:22:18,054 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 225 proven. 17 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2021-10-16 02:22:18,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646460644] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:22:18,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:22:18,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 11, 8, 4, 4] total 21 [2021-10-16 02:22:18,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887920245] [2021-10-16 02:22:18,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-16 02:22:18,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:22:18,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-16 02:22:18,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=324, Unknown=0, NotChecked=0, Total=420 [2021-10-16 02:22:18,058 INFO L87 Difference]: Start difference. First operand 1811 states and 2089 transitions. Second operand has 21 states, 21 states have (on average 51.61904761904762) internal successors, (1084), 21 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:25:39,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:25:39,440 INFO L93 Difference]: Finished difference Result 5798 states and 6707 transitions. [2021-10-16 02:25:39,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-10-16 02:25:39,449 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 51.61904761904762) internal successors, (1084), 21 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 344 [2021-10-16 02:25:39,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:25:39,484 INFO L225 Difference]: With dead ends: 5798 [2021-10-16 02:25:39,484 INFO L226 Difference]: Without dead ends: 4128 [2021-10-16 02:25:39,488 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2121 GetRequests, 2065 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 935 ImplicationChecksByTransitivity, 42346.7ms TimeCoverageRelationStatistics Valid=747, Invalid=2559, Unknown=0, NotChecked=0, Total=3306 [2021-10-16 02:25:39,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4128 states. [2021-10-16 02:25:39,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4128 to 2645. [2021-10-16 02:25:39,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2645 states, 2644 states have (on average 1.1059001512859303) internal successors, (2924), 2644 states have internal predecessors, (2924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:25:39,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2645 states to 2645 states and 2924 transitions. [2021-10-16 02:25:39,563 INFO L78 Accepts]: Start accepts. Automaton has 2645 states and 2924 transitions. Word has length 344 [2021-10-16 02:25:39,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:25:39,564 INFO L470 AbstractCegarLoop]: Abstraction has 2645 states and 2924 transitions. [2021-10-16 02:25:39,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 51.61904761904762) internal successors, (1084), 21 states have internal predecessors, (1084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:25:39,565 INFO L276 IsEmpty]: Start isEmpty. Operand 2645 states and 2924 transitions. [2021-10-16 02:25:39,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-10-16 02:25:39,575 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:25:39,575 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:25:39,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2021-10-16 02:25:39,799 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2021-10-16 02:25:40,013 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-10-16 02:25:40,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:25:40,183 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:25:40,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:25:40,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1115836380, now seen corresponding path program 1 times [2021-10-16 02:25:40,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:25:40,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [431334684] [2021-10-16 02:25:40,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:25:40,186 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:25:40,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:25:40,187 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:25:40,188 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2021-10-16 02:25:42,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:25:42,897 INFO L263 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 15 conjunts are in the unsatisfiable core [2021-10-16 02:25:42,902 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:25:49,420 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 65 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:25:49,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:26:12,398 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2021-10-16 02:26:12,399 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:26:12,399 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [431334684] [2021-10-16 02:26:12,399 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [431334684] provided 1 perfect and 1 imperfect interpolant sequences [2021-10-16 02:26:12,399 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-16 02:26:12,399 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9] total 16 [2021-10-16 02:26:12,399 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773036791] [2021-10-16 02:26:12,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 02:26:12,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:26:12,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 02:26:12,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-10-16 02:26:12,401 INFO L87 Difference]: Start difference. First operand 2645 states and 2924 transitions. Second operand has 8 states, 8 states have (on average 36.5) internal successors, (292), 8 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:26:15,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:26:15,605 INFO L93 Difference]: Finished difference Result 5119 states and 5689 transitions. [2021-10-16 02:26:15,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-16 02:26:15,609 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 36.5) internal successors, (292), 8 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 373 [2021-10-16 02:26:15,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:26:15,623 INFO L225 Difference]: With dead ends: 5119 [2021-10-16 02:26:15,623 INFO L226 Difference]: Without dead ends: 2893 [2021-10-16 02:26:15,626 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 744 GetRequests, 730 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 729.4ms TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2021-10-16 02:26:15,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2893 states. [2021-10-16 02:26:15,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2893 to 2853. [2021-10-16 02:26:15,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2852 states have (on average 1.099929873772791) internal successors, (3137), 2852 states have internal predecessors, (3137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:26:15,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 3137 transitions. [2021-10-16 02:26:15,713 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 3137 transitions. Word has length 373 [2021-10-16 02:26:15,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:26:15,714 INFO L470 AbstractCegarLoop]: Abstraction has 2853 states and 3137 transitions. [2021-10-16 02:26:15,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 36.5) internal successors, (292), 8 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:26:15,715 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 3137 transitions. [2021-10-16 02:26:15,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2021-10-16 02:26:15,726 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:26:15,726 INFO L512 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:26:15,753 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2021-10-16 02:26:15,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:26:15,942 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:26:15,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:26:15,942 INFO L82 PathProgramCache]: Analyzing trace with hash -2000279015, now seen corresponding path program 1 times [2021-10-16 02:26:15,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:26:15,944 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1529101013] [2021-10-16 02:26:15,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:26:15,945 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:26:15,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:26:15,945 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:26:15,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2021-10-16 02:26:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:26:19,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-16 02:26:19,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:26:21,817 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 0 proven. 371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:26:21,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:26:23,486 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 260 proven. 20 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-10-16 02:26:23,486 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:26:23,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1529101013] [2021-10-16 02:26:23,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1529101013] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:26:23,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1745127821] [2021-10-16 02:26:23,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:26:23,487 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-16 02:26:23,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 [2021-10-16 02:26:23,488 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-16 02:26:23,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2021-10-16 02:26:29,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:26:29,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-16 02:26:29,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:26:31,356 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 0 proven. 371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:26:31,356 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:26:33,591 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 260 proven. 20 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-10-16 02:26:33,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1745127821] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:26:33,592 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001961916] [2021-10-16 02:26:33,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:26:33,592 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:26:33,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:26:33,593 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-16 02:26:33,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-10-16 02:26:39,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:26:39,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-16 02:26:39,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:26:44,048 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 0 proven. 371 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:26:44,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:26:46,092 INFO L134 CoverageAnalysis]: Checked inductivity of 371 backedges. 260 proven. 20 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-10-16 02:26:46,093 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001961916] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-16 02:26:46,093 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2021-10-16 02:26:46,094 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 7, 7, 6, 4] total 17 [2021-10-16 02:26:46,094 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772212484] [2021-10-16 02:26:46,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-16 02:26:46,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:26:46,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-16 02:26:46,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2021-10-16 02:26:46,098 INFO L87 Difference]: Start difference. First operand 2853 states and 3137 transitions. Second operand has 17 states, 17 states have (on average 63.529411764705884) internal successors, (1080), 17 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:21,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:27:21,397 INFO L93 Difference]: Finished difference Result 8282 states and 9197 transitions. [2021-10-16 02:27:21,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-10-16 02:27:21,408 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 63.529411764705884) internal successors, (1080), 17 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 382 [2021-10-16 02:27:21,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:27:21,417 INFO L225 Difference]: With dead ends: 8282 [2021-10-16 02:27:21,418 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:27:21,434 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2307 GetRequests, 2280 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 819.0ms TimeCoverageRelationStatistics Valid=240, Invalid=516, Unknown=0, NotChecked=0, Total=756 [2021-10-16 02:27:21,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:27:21,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:27:21,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:21,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:27:21,435 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 382 [2021-10-16 02:27:21,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:27:21,435 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:27:21,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 63.529411764705884) internal successors, (1080), 17 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:27:21,436 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:27:21,436 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:27:21,438 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:27:21,462 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:21,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2021-10-16 02:27:21,886 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-10-16 02:27:22,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/cvc4 --incremental --print-success --lang smt,19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-16 02:27:22,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:27:22,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:27:22,815 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:27:23,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:27:39,232 WARN L207 SmtUtils]: Spent 15.91 s on a formula simplification. DAG size of input: 209 DAG size of output: 75 [2021-10-16 02:27:54,077 WARN L207 SmtUtils]: Spent 14.84 s on a formula simplification. DAG size of input: 209 DAG size of output: 75 [2021-10-16 02:27:54,081 INFO L857 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2021-10-16 02:27:54,081 INFO L857 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2021-10-16 02:27:54,081 INFO L857 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2021-10-16 02:27:54,081 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2021-10-16 02:27:54,081 INFO L857 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2021-10-16 02:27:54,081 INFO L857 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2021-10-16 02:27:54,081 INFO L857 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,082 INFO L857 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,082 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,082 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,082 INFO L857 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,082 INFO L857 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,083 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2021-10-16 02:27:54,083 INFO L857 garLoopResultBuilder]: For program point L203(line 203) no Hoare annotation was computed. [2021-10-16 02:27:54,083 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-16 02:27:54,083 INFO L857 garLoopResultBuilder]: For program point L137(line 137) no Hoare annotation was computed. [2021-10-16 02:27:54,083 INFO L857 garLoopResultBuilder]: For program point L104(line 104) no Hoare annotation was computed. [2021-10-16 02:27:54,084 INFO L857 garLoopResultBuilder]: For program point L71(line 71) no Hoare annotation was computed. [2021-10-16 02:27:54,084 INFO L857 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2021-10-16 02:27:54,084 INFO L857 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2021-10-16 02:27:54,084 INFO L857 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2021-10-16 02:27:54,084 INFO L857 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2021-10-16 02:27:54,084 INFO L857 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2021-10-16 02:27:54,085 INFO L857 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2021-10-16 02:27:54,085 INFO L857 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2021-10-16 02:27:54,085 INFO L857 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,085 INFO L857 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,085 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,086 INFO L857 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,086 INFO L857 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,086 INFO L857 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,086 INFO L857 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2021-10-16 02:27:54,086 INFO L857 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2021-10-16 02:27:54,087 INFO L857 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2021-10-16 02:27:54,087 INFO L857 garLoopResultBuilder]: For program point L206(line 206) no Hoare annotation was computed. [2021-10-16 02:27:54,087 INFO L857 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-10-16 02:27:54,087 INFO L857 garLoopResultBuilder]: For program point L140(line 140) no Hoare annotation was computed. [2021-10-16 02:27:54,087 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-10-16 02:27:54,088 INFO L857 garLoopResultBuilder]: For program point L74(line 74) no Hoare annotation was computed. [2021-10-16 02:27:54,088 INFO L857 garLoopResultBuilder]: For program point L41(line 41) no Hoare annotation was computed. [2021-10-16 02:27:54,088 INFO L857 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2021-10-16 02:27:54,088 INFO L857 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2021-10-16 02:27:54,088 INFO L857 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2021-10-16 02:27:54,088 INFO L857 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,089 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,089 INFO L857 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,089 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,089 INFO L857 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,089 INFO L857 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,089 INFO L857 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2021-10-16 02:27:54,089 INFO L857 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2021-10-16 02:27:54,089 INFO L857 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2021-10-16 02:27:54,089 INFO L857 garLoopResultBuilder]: For program point L209(line 209) no Hoare annotation was computed. [2021-10-16 02:27:54,090 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-16 02:27:54,090 INFO L857 garLoopResultBuilder]: For program point L143(line 143) no Hoare annotation was computed. [2021-10-16 02:27:54,090 INFO L857 garLoopResultBuilder]: For program point L110(line 110) no Hoare annotation was computed. [2021-10-16 02:27:54,090 INFO L857 garLoopResultBuilder]: For program point L77(line 77) no Hoare annotation was computed. [2021-10-16 02:27:54,090 INFO L857 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-10-16 02:27:54,090 INFO L857 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2021-10-16 02:27:54,090 INFO L857 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2021-10-16 02:27:54,090 INFO L857 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2021-10-16 02:27:54,090 INFO L857 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2021-10-16 02:27:54,090 INFO L857 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,090 INFO L857 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,091 INFO L857 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,091 INFO L857 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,091 INFO L857 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,091 INFO L857 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,091 INFO L857 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2021-10-16 02:27:54,091 INFO L857 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2021-10-16 02:27:54,091 INFO L857 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-10-16 02:27:54,091 INFO L857 garLoopResultBuilder]: For program point L179(line 179) no Hoare annotation was computed. [2021-10-16 02:27:54,091 INFO L857 garLoopResultBuilder]: For program point L146(line 146) no Hoare annotation was computed. [2021-10-16 02:27:54,091 INFO L857 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-10-16 02:27:54,091 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-16 02:27:54,091 INFO L857 garLoopResultBuilder]: For program point L47(line 47) no Hoare annotation was computed. [2021-10-16 02:27:54,092 INFO L857 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2021-10-16 02:27:54,092 INFO L857 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2021-10-16 02:27:54,092 INFO L857 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2021-10-16 02:27:54,092 INFO L857 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,092 INFO L857 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,092 INFO L857 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,092 INFO L857 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,092 INFO L857 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,092 INFO L857 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2021-10-16 02:27:54,092 INFO L857 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2021-10-16 02:27:54,092 INFO L857 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2021-10-16 02:27:54,092 INFO L857 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2021-10-16 02:27:54,093 INFO L857 garLoopResultBuilder]: For program point L182(line 182) no Hoare annotation was computed. [2021-10-16 02:27:54,093 INFO L857 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-10-16 02:27:54,093 INFO L857 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-10-16 02:27:54,093 INFO L857 garLoopResultBuilder]: For program point L83(line 83) no Hoare annotation was computed. [2021-10-16 02:27:54,093 INFO L857 garLoopResultBuilder]: For program point L50(line 50) no Hoare annotation was computed. [2021-10-16 02:27:54,093 INFO L857 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2021-10-16 02:27:54,093 INFO L857 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2021-10-16 02:27:54,093 INFO L857 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2021-10-16 02:27:54,093 INFO L857 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2021-10-16 02:27:54,093 INFO L857 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2021-10-16 02:27:54,093 INFO L857 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,093 INFO L857 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,094 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,094 INFO L857 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,094 INFO L857 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,094 INFO L857 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2021-10-16 02:27:54,094 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:27:54,094 INFO L857 garLoopResultBuilder]: For program point L185(line 185) no Hoare annotation was computed. [2021-10-16 02:27:54,095 INFO L857 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-10-16 02:27:54,095 INFO L857 garLoopResultBuilder]: For program point L119(line 119) no Hoare annotation was computed. [2021-10-16 02:27:54,095 INFO L857 garLoopResultBuilder]: For program point L86(line 86) no Hoare annotation was computed. [2021-10-16 02:27:54,095 INFO L857 garLoopResultBuilder]: For program point L53(line 53) no Hoare annotation was computed. [2021-10-16 02:27:54,096 INFO L853 garLoopResultBuilder]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse13 (= (_ bv8 32) ~a19~0))) (let ((.cse1 (not .cse13)) (.cse3 (= (_ bv0 32) ~a12~0))) (let ((.cse12 (= ~a19~0 (_ bv9 32))) (.cse7 (not (bvsle (bvadd (_ bv505228 32) (bvsdiv (bvmul (bvsdiv ~a1~0 (_ bv5 32)) (_ bv5 32)) (_ bv5 32))) (_ bv4294967283 32)))) (.cse2 (= (_ bv14 32) ~a4~0)) (.cse6 (not (= (_ bv10 32) ~a19~0))) (.cse10 (or .cse1 (not .cse3))) (.cse5 (= (_ bv2 32) ~a10~0)) (.cse11 (not (bvslt (_ bv38 32) ~a1~0)))) (let ((.cse0 (let ((.cse14 (or (and .cse5 .cse10) (and .cse5 .cse11)))) (or (and .cse12 .cse2 .cse3 .cse14 .cse6) (and .cse7 .cse2 .cse3 .cse14 .cse6)))) (.cse9 (not .cse5)) (.cse8 (= (_ bv1 32) ~a10~0)) (.cse4 (bvslt (_ bv218 32) (bvadd ~a1~0 (_ bv592110 32))))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 (bvsge (_ bv38 32) ~a1~0) (= (_ bv0 32) ~a10~0)) (and (bvslt (_ bv218 32) ~a1~0) .cse2 .cse3 .cse5 .cse4 .cse6) (and .cse7 .cse2 .cse3 .cse8) (and .cse0 .cse4) (and (not (= (_ bv3 32) ~a10~0)) .cse9 .cse2 .cse3 (not .cse8) .cse6) (and (not (bvslt (_ bv4294967283 32) ~a1~0)) .cse7 .cse9 .cse2 .cse3 .cse10 .cse6 .cse11) (and .cse7 .cse9 .cse2 .cse3 .cse10 .cse6 .cse11 (not .cse12)) (and .cse2 .cse3 .cse13 .cse8) (and .cse12 .cse2 .cse3 .cse4 (not (= ULTIMATE.start_calculate_output_~input (_ bv5 32))))))))) [2021-10-16 02:27:54,096 INFO L857 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2021-10-16 02:27:54,096 INFO L857 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2021-10-16 02:27:54,096 INFO L857 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2021-10-16 02:27:54,096 INFO L857 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2021-10-16 02:27:54,097 INFO L857 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,097 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,097 INFO L857 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,097 INFO L857 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,097 INFO L857 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,098 INFO L857 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2021-10-16 02:27:54,098 INFO L857 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2021-10-16 02:27:54,098 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2021-10-16 02:27:54,098 INFO L857 garLoopResultBuilder]: For program point L188(line 188) no Hoare annotation was computed. [2021-10-16 02:27:54,098 INFO L857 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-10-16 02:27:54,098 INFO L857 garLoopResultBuilder]: For program point L122(line 122) no Hoare annotation was computed. [2021-10-16 02:27:54,098 INFO L857 garLoopResultBuilder]: For program point L89(line 89) no Hoare annotation was computed. [2021-10-16 02:27:54,098 INFO L857 garLoopResultBuilder]: For program point L56(line 56) no Hoare annotation was computed. [2021-10-16 02:27:54,098 INFO L857 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2021-10-16 02:27:54,099 INFO L857 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2021-10-16 02:27:54,099 INFO L860 garLoopResultBuilder]: At program point L586(lines 586 602) the Hoare annotation is: true [2021-10-16 02:27:54,099 INFO L857 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2021-10-16 02:27:54,099 INFO L857 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2021-10-16 02:27:54,099 INFO L857 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2021-10-16 02:27:54,099 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:27:54,099 INFO L857 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,099 INFO L857 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,099 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,100 INFO L857 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,100 INFO L857 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,100 INFO L857 garLoopResultBuilder]: For program point L191(line 191) no Hoare annotation was computed. [2021-10-16 02:27:54,100 INFO L857 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-10-16 02:27:54,100 INFO L857 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2021-10-16 02:27:54,100 INFO L857 garLoopResultBuilder]: For program point L92(line 92) no Hoare annotation was computed. [2021-10-16 02:27:54,100 INFO L857 garLoopResultBuilder]: For program point L59(line 59) no Hoare annotation was computed. [2021-10-16 02:27:54,100 INFO L857 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2021-10-16 02:27:54,100 INFO L857 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2021-10-16 02:27:54,100 INFO L857 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2021-10-16 02:27:54,100 INFO L857 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2021-10-16 02:27:54,101 INFO L857 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,101 INFO L857 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,101 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,101 INFO L857 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,101 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:27:54,101 INFO L857 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,102 INFO L857 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2021-10-16 02:27:54,102 INFO L857 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2021-10-16 02:27:54,102 INFO L857 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2021-10-16 02:27:54,102 INFO L857 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2021-10-16 02:27:54,102 INFO L857 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-10-16 02:27:54,103 INFO L857 garLoopResultBuilder]: For program point L161(line 161) no Hoare annotation was computed. [2021-10-16 02:27:54,103 INFO L857 garLoopResultBuilder]: For program point L128(line 128) no Hoare annotation was computed. [2021-10-16 02:27:54,103 INFO L857 garLoopResultBuilder]: For program point L95(line 95) no Hoare annotation was computed. [2021-10-16 02:27:54,103 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-16 02:27:54,103 INFO L857 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2021-10-16 02:27:54,103 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2021-10-16 02:27:54,104 INFO L857 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2021-10-16 02:27:54,104 INFO L853 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse13 (= (_ bv8 32) ~a19~0))) (let ((.cse1 (not .cse13)) (.cse3 (= (_ bv0 32) ~a12~0))) (let ((.cse12 (= ~a19~0 (_ bv9 32))) (.cse7 (not (bvsle (bvadd (_ bv505228 32) (bvsdiv (bvmul (bvsdiv ~a1~0 (_ bv5 32)) (_ bv5 32)) (_ bv5 32))) (_ bv4294967283 32)))) (.cse2 (= (_ bv14 32) ~a4~0)) (.cse6 (not (= (_ bv10 32) ~a19~0))) (.cse10 (or .cse1 (not .cse3))) (.cse5 (= (_ bv2 32) ~a10~0)) (.cse11 (not (bvslt (_ bv38 32) ~a1~0)))) (let ((.cse0 (let ((.cse14 (or (and .cse5 .cse10) (and .cse5 .cse11)))) (or (and .cse12 .cse2 .cse3 .cse14 .cse6) (and .cse7 .cse2 .cse3 .cse14 .cse6)))) (.cse9 (not .cse5)) (.cse8 (= (_ bv1 32) ~a10~0)) (.cse4 (bvslt (_ bv218 32) (bvadd ~a1~0 (_ bv592110 32))))) (or (and .cse0 .cse1) (and .cse2 .cse3 .cse4 (bvsge (_ bv38 32) ~a1~0) (= (_ bv0 32) ~a10~0)) (and (bvslt (_ bv218 32) ~a1~0) .cse2 .cse3 .cse5 .cse4 .cse6) (and .cse7 .cse2 .cse3 .cse8) (and .cse0 .cse4) (and (not (= (_ bv3 32) ~a10~0)) .cse9 .cse2 .cse3 (not .cse8) .cse6) (and (not (bvslt (_ bv4294967283 32) ~a1~0)) .cse7 .cse9 .cse2 .cse3 .cse10 .cse6 .cse11) (and .cse7 .cse9 .cse2 .cse3 .cse10 .cse6 .cse11 (not .cse12)) (and .cse2 .cse3 .cse13 .cse8) (and .cse12 .cse2 .cse3 .cse4 (not (= ULTIMATE.start_calculate_output_~input (_ bv5 32))))))))) [2021-10-16 02:27:54,104 INFO L857 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2021-10-16 02:27:54,104 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,105 INFO L857 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,105 INFO L857 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,105 INFO L857 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,105 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2021-10-16 02:27:54,105 INFO L857 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,105 INFO L857 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,106 INFO L857 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2021-10-16 02:27:54,106 INFO L857 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2021-10-16 02:27:54,106 INFO L857 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2021-10-16 02:27:54,106 INFO L857 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-10-16 02:27:54,106 INFO L857 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-10-16 02:27:54,106 INFO L857 garLoopResultBuilder]: For program point L131(line 131) no Hoare annotation was computed. [2021-10-16 02:27:54,107 INFO L857 garLoopResultBuilder]: For program point L98(line 98) no Hoare annotation was computed. [2021-10-16 02:27:54,107 INFO L857 garLoopResultBuilder]: For program point L65(line 65) no Hoare annotation was computed. [2021-10-16 02:27:54,107 INFO L857 garLoopResultBuilder]: For program point L32(line 32) no Hoare annotation was computed. [2021-10-16 02:27:54,107 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:27:54,107 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2021-10-16 02:27:54,108 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2021-10-16 02:27:54,108 INFO L857 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2021-10-16 02:27:54,108 INFO L857 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2021-10-16 02:27:54,108 INFO L857 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2021-10-16 02:27:54,108 INFO L857 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,108 INFO L857 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,109 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,109 INFO L857 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,109 INFO L857 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,109 INFO L857 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2021-10-16 02:27:54,109 INFO L857 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2021-10-16 02:27:54,109 INFO L857 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2021-10-16 02:27:54,110 INFO L857 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2021-10-16 02:27:54,110 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-16 02:27:54,110 INFO L857 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-10-16 02:27:54,110 INFO L857 garLoopResultBuilder]: For program point L134(line 134) no Hoare annotation was computed. [2021-10-16 02:27:54,110 INFO L857 garLoopResultBuilder]: For program point L101(line 101) no Hoare annotation was computed. [2021-10-16 02:27:54,110 INFO L857 garLoopResultBuilder]: For program point L68(line 68) no Hoare annotation was computed. [2021-10-16 02:27:54,111 INFO L857 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-10-16 02:27:54,115 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:27:54,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:27:54 BoogieIcfgContainer [2021-10-16 02:27:54,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:27:54,144 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:27:54,144 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:27:54,144 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:27:54,145 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:20:19" (3/4) ... [2021-10-16 02:27:54,148 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:27:54,170 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-16 02:27:54,172 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 02:27:54,173 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:27:54,174 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:27:54,314 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:27:54,315 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:27:54,316 INFO L168 Benchmark]: Toolchain (without parser) took 459482.66 ms. Allocated memory was 71.3 MB in the beginning and 343.9 MB in the end (delta: 272.6 MB). Free memory was 50.8 MB in the beginning and 75.8 MB in the end (delta: -25.0 MB). Peak memory consumption was 281.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:54,317 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 71.3 MB. Free memory was 50.8 MB in the beginning and 50.7 MB in the end (delta: 54.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:27:54,317 INFO L168 Benchmark]: CACSL2BoogieTranslator took 804.77 ms. Allocated memory is still 71.3 MB. Free memory was 50.5 MB in the beginning and 32.8 MB in the end (delta: 17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:54,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 144.07 ms. Allocated memory is still 71.3 MB. Free memory was 32.8 MB in the beginning and 48.9 MB in the end (delta: -16.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:54,318 INFO L168 Benchmark]: Boogie Preprocessor took 84.97 ms. Allocated memory is still 71.3 MB. Free memory was 48.9 MB in the beginning and 44.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:54,318 INFO L168 Benchmark]: RCFGBuilder took 3304.79 ms. Allocated memory was 71.3 MB in the beginning and 94.4 MB in the end (delta: 23.1 MB). Free memory was 44.7 MB in the beginning and 58.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:54,319 INFO L168 Benchmark]: TraceAbstraction took 454964.58 ms. Allocated memory was 94.4 MB in the beginning and 343.9 MB in the end (delta: 249.6 MB). Free memory was 58.3 MB in the beginning and 58.7 MB in the end (delta: -396.4 kB). Peak memory consumption was 268.9 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:54,319 INFO L168 Benchmark]: Witness Printer took 170.64 ms. Allocated memory is still 343.9 MB. Free memory was 58.7 MB in the beginning and 75.8 MB in the end (delta: -17.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:27:54,322 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 71.3 MB. Free memory was 50.8 MB in the beginning and 50.7 MB in the end (delta: 54.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 804.77 ms. Allocated memory is still 71.3 MB. Free memory was 50.5 MB in the beginning and 32.8 MB in the end (delta: 17.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 144.07 ms. Allocated memory is still 71.3 MB. Free memory was 32.8 MB in the beginning and 48.9 MB in the end (delta: -16.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 84.97 ms. Allocated memory is still 71.3 MB. Free memory was 48.9 MB in the beginning and 44.7 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 3304.79 ms. Allocated memory was 71.3 MB in the beginning and 94.4 MB in the end (delta: 23.1 MB). Free memory was 44.7 MB in the beginning and 58.3 MB in the end (delta: -13.6 MB). Peak memory consumption was 29.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 454964.58 ms. Allocated memory was 94.4 MB in the beginning and 343.9 MB in the end (delta: 249.6 MB). Free memory was 58.3 MB in the beginning and 58.7 MB in the end (delta: -396.4 kB). Peak memory consumption was 268.9 MB. Max. memory is 16.1 GB. * Witness Printer took 170.64 ms. Allocated memory is still 343.9 MB. Free memory was 58.7 MB in the beginning and 75.8 MB in the end (delta: -17.1 MB). Peak memory consumption was 17.8 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 80]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 454845.2ms, OverallIterations: 10, TraceHistogramMax: 4, EmptinessCheckTime: 125.2ms, AutomataDifference: 276073.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 32033.8ms, InitialAbstractionConstructionTime: 19.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 488 SDtfs, 4943 SDslu, 328 SDs, 0 SdLazy, 16235 SolverSat, 2766 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 217637.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9246 GetRequests, 9104 SyntacticMatches, 4 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1295 ImplicationChecksByTransitivity, 45585.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2853occurred in iteration=9, InterpolantAutomatonStates: 98, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 520.6ms AutomataMinimizationTime, 10 MinimizatonAttempts, 3330 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 100 NumberOfFragments, 763 HoareAnnotationTreeSize, 3 FomulaSimplifications, 19430 FormulaSimplificationTreeSizeReduction, 1263.7ms HoareSimplificationTime, 3 FomulaSimplificationsInter, 31212 FormulaSimplificationTreeSizeReductionInter, 30761.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 331.7ms SsaConstructionTime, 2110.5ms SatisfiabilityAnalysisTime, 110415.6ms InterpolantComputationTime, 4599 NumberOfCodeBlocks, 4599 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 9162 ConstructedInterpolants, 0 QuantifiedInterpolants, 70314 SizeOfPredicates, 68 NumberOfNonLiveVariables, 5675 ConjunctsInSsa, 124 ConjunctsInUnsatCore, 36 InterpolantComputations, 14 PerfectInterpolantSequences, 5364/7480 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((((((((((((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19)) || ((((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19))) && !(8bv32 == a19)) || ((((14bv32 == a4 && 0bv32 == a12) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32))) && ~bvsge32(38bv32, a1)) && 0bv32 == a10)) || (((((~bvslt32(218bv32, a1) && 14bv32 == a4) && 0bv32 == a12) && 2bv32 == a10) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32))) && !(10bv32 == a19))) || (((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && 14bv32 == a4) && 0bv32 == a12) && 1bv32 == a10)) || ((((((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19)) || ((((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19))) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32)))) || (((((!(3bv32 == a10) && !(2bv32 == a10)) && 14bv32 == a4) && 0bv32 == a12) && !(1bv32 == a10)) && !(10bv32 == a19))) || (((((((!~bvslt32(4294967283bv32, a1) && !~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32)) && !(2bv32 == a10)) && 14bv32 == a4) && 0bv32 == a12) && (!(8bv32 == a19) || !(0bv32 == a12))) && !(10bv32 == a19)) && !~bvslt32(38bv32, a1))) || (((((((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && !(2bv32 == a10)) && 14bv32 == a4) && 0bv32 == a12) && (!(8bv32 == a19) || !(0bv32 == a12))) && !(10bv32 == a19)) && !~bvslt32(38bv32, a1)) && !(a19 == 9bv32))) || (((14bv32 == a4 && 0bv32 == a12) && 8bv32 == a19) && 1bv32 == a10)) || ((((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32))) && !(input == 5bv32)) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((((((((((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19)) || ((((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19))) && !(8bv32 == a19)) || ((((14bv32 == a4 && 0bv32 == a12) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32))) && ~bvsge32(38bv32, a1)) && 0bv32 == a10)) || (((((~bvslt32(218bv32, a1) && 14bv32 == a4) && 0bv32 == a12) && 2bv32 == a10) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32))) && !(10bv32 == a19))) || (((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && 14bv32 == a4) && 0bv32 == a12) && 1bv32 == a10)) || ((((((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19)) || ((((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && 14bv32 == a4) && 0bv32 == a12) && ((2bv32 == a10 && (!(8bv32 == a19) || !(0bv32 == a12))) || (2bv32 == a10 && !~bvslt32(38bv32, a1)))) && !(10bv32 == a19))) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32)))) || (((((!(3bv32 == a10) && !(2bv32 == a10)) && 14bv32 == a4) && 0bv32 == a12) && !(1bv32 == a10)) && !(10bv32 == a19))) || (((((((!~bvslt32(4294967283bv32, a1) && !~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32)) && !(2bv32 == a10)) && 14bv32 == a4) && 0bv32 == a12) && (!(8bv32 == a19) || !(0bv32 == a12))) && !(10bv32 == a19)) && !~bvslt32(38bv32, a1))) || (((((((!~bvsle32(~bvadd64(505228bv32, ~bvsdiv32(~bvmul32(~bvsdiv32(a1, 5bv32), 5bv32), 5bv32)), 4294967283bv32) && !(2bv32 == a10)) && 14bv32 == a4) && 0bv32 == a12) && (!(8bv32 == a19) || !(0bv32 == a12))) && !(10bv32 == a19)) && !~bvslt32(38bv32, a1)) && !(a19 == 9bv32))) || (((14bv32 == a4 && 0bv32 == a12) && 8bv32 == a19) && 1bv32 == a10)) || ((((a19 == 9bv32 && 14bv32 == a4) && 0bv32 == a12) && ~bvslt32(218bv32, ~bvadd64(a1, 592110bv32))) && !(input == 5bv32)) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-10-16 02:27:54,440 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_561e5482-e5e8-46f8-883d-ed550d57bb33/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...