./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label49.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 542216decab4eb809f5dc567967fa4ce316925bd ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label49.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 542216decab4eb809f5dc567967fa4ce316925bd ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:00:21,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:00:21,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:00:21,403 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:00:21,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:00:21,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:00:21,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:00:21,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:00:21,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:00:21,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:00:21,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:00:21,414 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:00:21,414 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:00:21,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:00:21,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:00:21,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:00:21,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:00:21,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:00:21,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:00:21,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:00:21,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:00:21,427 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:00:21,428 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:00:21,429 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:00:21,432 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:00:21,432 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:00:21,433 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:00:21,434 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:00:21,434 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:00:21,435 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:00:21,436 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:00:21,437 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:00:21,438 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:00:21,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:00:21,439 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:00:21,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:00:21,440 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:00:21,441 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:00:21,441 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:00:21,442 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:00:21,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:00:21,443 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 10:00:21,466 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:00:21,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:00:21,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:00:21,467 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:00:21,468 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:00:21,468 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:00:21,468 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 10:00:21,468 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:00:21,468 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:00:21,468 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 10:00:21,469 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 10:00:21,469 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:00:21,469 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 10:00:21,469 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 10:00:21,469 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 10:00:21,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:00:21,470 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:00:21,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 10:00:21,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:00:21,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:00:21,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:00:21,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:00:21,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:00:21,471 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:00:21,471 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:00:21,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:00:21,472 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:00:21,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:00:21,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:00:21,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:00:21,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:00:21,473 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:00:21,473 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:00:21,473 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:00:21,473 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 10:00:21,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 10:00:21,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:00:21,474 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:00:21,474 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:00:21,474 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 542216decab4eb809f5dc567967fa4ce316925bd [2020-12-09 10:00:21,658 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:00:21,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:00:21,678 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:00:21,679 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:00:21,680 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:00:21,681 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label49.c [2020-12-09 10:00:21,721 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/data/e23e6be5f/cf314a5e376240a1b828ff889e37d607/FLAGb24e1aa27 [2020-12-09 10:00:22,162 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:00:22,162 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/sv-benchmarks/c/eca-rers2012/Problem10_label49.c [2020-12-09 10:00:22,173 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/data/e23e6be5f/cf314a5e376240a1b828ff889e37d607/FLAGb24e1aa27 [2020-12-09 10:00:22,193 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/data/e23e6be5f/cf314a5e376240a1b828ff889e37d607 [2020-12-09 10:00:22,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:00:22,197 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:00:22,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:00:22,198 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:00:22,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:00:22,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:00:22" (1/1) ... [2020-12-09 10:00:22,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@400275c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:22, skipping insertion in model container [2020-12-09 10:00:22,203 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:00:22" (1/1) ... [2020-12-09 10:00:22,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:00:22,240 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:00:22,348 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/sv-benchmarks/c/eca-rers2012/Problem10_label49.c[2714,2727] [2020-12-09 10:00:22,460 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:00:22,466 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:00:22,480 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/sv-benchmarks/c/eca-rers2012/Problem10_label49.c[2714,2727] [2020-12-09 10:00:22,529 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:00:22,543 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:00:22,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:22 WrapperNode [2020-12-09 10:00:22,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:00:22,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:00:22,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:00:22,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:00:22,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:22" (1/1) ... [2020-12-09 10:00:22,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:22" (1/1) ... [2020-12-09 10:00:22,604 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:00:22,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:00:22,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:00:22,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:00:22,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:22" (1/1) ... [2020-12-09 10:00:22,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:22" (1/1) ... [2020-12-09 10:00:22,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:22" (1/1) ... [2020-12-09 10:00:22,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:22" (1/1) ... [2020-12-09 10:00:22,634 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:22" (1/1) ... [2020-12-09 10:00:22,641 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:22" (1/1) ... [2020-12-09 10:00:22,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:22" (1/1) ... [2020-12-09 10:00:22,657 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:00:22,658 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:00:22,658 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:00:22,658 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:00:22,659 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:22" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:00:22,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 10:00:22,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:00:22,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:00:22,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:00:28,924 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:00:28,924 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 10:00:28,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:00:28 BoogieIcfgContainer [2020-12-09 10:00:28,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:00:28,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:00:28,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:00:28,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:00:28,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:00:22" (1/3) ... [2020-12-09 10:00:28,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52672833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:00:28, skipping insertion in model container [2020-12-09 10:00:28,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:22" (2/3) ... [2020-12-09 10:00:28,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52672833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:00:28, skipping insertion in model container [2020-12-09 10:00:28,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:00:28" (3/3) ... [2020-12-09 10:00:28,931 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label49.c [2020-12-09 10:00:28,941 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:00:28,944 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 10:00:28,950 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 10:00:28,965 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:00:28,966 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 10:00:28,966 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:00:28,966 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:00:28,966 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:00:28,966 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:00:28,966 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:00:28,966 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:00:28,974 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-09 10:00:28,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 10:00:28,977 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:00:28,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 10:00:28,977 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:00:28,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:00:28,981 INFO L82 PathProgramCache]: Analyzing trace with hash 856680468, now seen corresponding path program 1 times [2020-12-09 10:00:28,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:00:28,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582772192] [2020-12-09 10:00:28,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:00:29,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:00:29,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:00:29,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582772192] [2020-12-09 10:00:29,104 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:00:29,104 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:00:29,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683978689] [2020-12-09 10:00:29,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:00:29,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 10:00:29,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:00:29,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:00:29,122 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-12-09 10:00:29,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:00:29,184 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2020-12-09 10:00:29,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:00:29,186 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 10:00:29,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:00:29,193 INFO L225 Difference]: With dead ends: 23 [2020-12-09 10:00:29,193 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 10:00:29,196 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:00:29,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 10:00:29,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-12-09 10:00:29,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-09 10:00:29,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-09 10:00:29,221 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2020-12-09 10:00:29,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:00:29,221 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-09 10:00:29,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:00:29,221 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-09 10:00:29,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 10:00:29,222 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:00:29,222 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2020-12-09 10:00:29,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 10:00:29,222 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:00:29,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:00:29,223 INFO L82 PathProgramCache]: Analyzing trace with hash 495530324, now seen corresponding path program 1 times [2020-12-09 10:00:29,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 10:00:29,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042786093] [2020-12-09 10:00:29,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 10:00:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:00:29,489 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:00:29,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042786093] [2020-12-09 10:00:29,489 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [94979809] [2020-12-09 10:00:29,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 10:00:29,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:00:29,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 10:00:29,575 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:00:29,757 WARN L197 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 1002 DAG size of output: 135 [2020-12-09 10:00:29,806 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,809 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,811 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,813 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:29,814 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:29,815 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,816 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,821 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:29,822 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:29,826 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,828 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,829 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,833 INFO L639 QuantifierPusher]: Distributing 10 conjuncts over 2 disjuncts [2020-12-09 10:00:29,834 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 10:00:29,835 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,837 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,841 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,842 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:29,842 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,848 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,851 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,854 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,856 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,857 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,860 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 10:00:29,860 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,863 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,865 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,866 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,868 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,868 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:29,871 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,875 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,875 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:29,876 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,878 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,879 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,880 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:29,881 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,881 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,884 INFO L639 QuantifierPusher]: Distributing 9 conjuncts over 2 disjuncts [2020-12-09 10:00:29,885 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,886 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,889 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:29,891 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:29,892 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 10:00:29,895 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:29,900 INFO L639 QuantifierPusher]: Distributing 15 conjuncts over 2 disjuncts [2020-12-09 10:00:29,900 INFO L639 QuantifierPusher]: Distributing 10 conjuncts over 2 disjuncts [2020-12-09 10:00:29,901 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,903 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,903 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,905 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,906 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 10:00:29,908 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,909 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,911 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,913 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,914 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:29,915 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,916 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,917 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,918 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,919 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,921 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,925 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,927 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,929 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,931 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,931 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,933 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,934 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,936 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,937 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:29,937 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,939 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,939 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,941 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:29,941 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,942 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,944 INFO L639 QuantifierPusher]: Distributing 9 conjuncts over 2 disjuncts [2020-12-09 10:00:29,945 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,946 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,948 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,948 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:29,949 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,950 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,951 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,952 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:29,953 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,953 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,955 INFO L639 QuantifierPusher]: Distributing 9 conjuncts over 2 disjuncts [2020-12-09 10:00:29,955 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,956 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,959 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 10:00:29,959 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 10:00:29,961 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 2 disjuncts [2020-12-09 10:00:29,962 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 10:00:29,962 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 10:00:29,964 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:29,969 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 10:00:29,970 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:29,972 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,976 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 10:00:29,977 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 10:00:29,978 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 10:00:29,980 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:29,984 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-12-09 10:00:29,985 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 10:00:29,987 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 10:00:29,993 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 10:00:29,996 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:29,998 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:29,999 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:29,999 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,001 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,002 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,004 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:30,005 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,005 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,007 INFO L639 QuantifierPusher]: Distributing 9 conjuncts over 2 disjuncts [2020-12-09 10:00:30,009 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:30,010 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:30,012 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 10:00:30,015 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,016 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,018 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:30,023 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,025 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:30,025 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,028 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,032 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,035 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,037 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,037 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,039 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,040 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:30,042 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,045 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,046 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,047 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,050 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 10:00:30,050 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,053 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,055 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:30,056 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:30,057 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,057 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,060 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:30,061 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:30,063 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,065 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,066 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,069 INFO L639 QuantifierPusher]: Distributing 10 conjuncts over 2 disjuncts [2020-12-09 10:00:30,069 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 10:00:30,070 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,072 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,075 INFO L639 QuantifierPusher]: Distributing 15 conjuncts over 2 disjuncts [2020-12-09 10:00:30,076 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,077 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,078 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 10:00:30,079 INFO L639 QuantifierPusher]: Distributing 10 conjuncts over 2 disjuncts [2020-12-09 10:00:30,080 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,081 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,083 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,084 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,085 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,087 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,088 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:30,088 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,091 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,095 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,097 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,099 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,100 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,101 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,102 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:30,103 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,106 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,108 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,108 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,111 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 10:00:30,111 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,113 INFO L639 QuantifierPusher]: Distributing 10 conjuncts over 2 disjuncts [2020-12-09 10:00:30,114 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,115 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,116 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,119 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,119 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:30,120 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,122 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,122 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,124 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,124 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,126 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,130 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,133 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,134 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,136 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,136 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,138 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,139 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,140 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 2 disjuncts [2020-12-09 10:00:30,143 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 10:00:30,144 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 10:00:30,146 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:30,148 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 10:00:30,149 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:30,151 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,155 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,155 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:30,156 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,160 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,162 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,164 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,166 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,167 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,169 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 10:00:30,170 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,172 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,174 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,174 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,175 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,176 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:30,178 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,181 INFO L639 QuantifierPusher]: Distributing 10 conjuncts over 2 disjuncts [2020-12-09 10:00:30,181 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,183 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,183 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,187 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,188 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:00:30,189 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,193 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,195 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,197 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 10:00:30,197 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:30,210 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,213 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,215 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,219 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,221 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,222 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,223 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,226 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,233 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,238 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,242 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,244 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,246 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:00:30,247 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 10:00:30,251 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 13, 4, 10, 4, 7, 4, 3, 4, 2, 4, 1] term [2020-12-09 10:00:30,252 INFO L639 QuantifierPusher]: Distributing 13 conjuncts over 2 disjuncts [2020-12-09 10:00:30,254 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 1] term [2020-12-09 10:00:30,254 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:30,255 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 4, 2, 4, 1] term [2020-12-09 10:00:30,255 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 10:00:30,256 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 10, 4, 7, 4, 3, 4, 2, 4, 1] term [2020-12-09 10:00:30,256 INFO L639 QuantifierPusher]: Distributing 10 conjuncts over 3 disjuncts [2020-12-09 10:00:30,256 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 7, 4, 3, 4, 2, 4, 1] term [2020-12-09 10:00:30,257 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 10:00:30,257 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 3, 4, 2, 4, 1] term [2020-12-09 10:00:30,257 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 10:00:30,258 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 1] term [2020-12-09 10:00:30,258 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 10:00:30,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:00:30,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:00:30,577 WARN L197 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 1667 DAG size of output: 1006 [2020-12-09 10:00:30,585 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2020-12-09 10:00:30,585 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1926980022] [2020-12-09 10:00:30,601 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-12-09 10:00:30,602 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 10:00:30,605 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 10:00:30,609 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 10:00:30,609 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 10:00:30,728 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 17 [2020-12-09 10:00:30,934 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 17 [2020-12-09 10:00:31,469 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 1647 DAG size of output: 1556 [2020-12-09 10:00:48,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-09 10:00:48,545 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: variable got div captured at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:426) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$IDerHelper.findBestReplacementSbr(DualJunctionDer.java:305) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$IDerHelper.tryToEliminateSbr(DualJunctionDer.java:319) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:190) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:174) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:141) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminate(DualJunctionDer.java:119) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:776) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:739) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:656) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:358) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:151) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:202) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1133) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 10:00:48,555 INFO L168 Benchmark]: Toolchain (without parser) took 26355.99 ms. Allocated memory was 88.1 MB in the beginning and 601.9 MB in the end (delta: 513.8 MB). Free memory was 67.1 MB in the beginning and 256.7 MB in the end (delta: -189.6 MB). Peak memory consumption was 420.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:00:48,555 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 88.1 MB. Free memory was 63.6 MB in the beginning and 63.5 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:00:48,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.08 ms. Allocated memory is still 88.1 MB. Free memory was 66.8 MB in the beginning and 63.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. [2020-12-09 10:00:48,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.68 ms. Allocated memory is still 88.1 MB. Free memory was 63.9 MB in the beginning and 56.1 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 10:00:48,557 INFO L168 Benchmark]: Boogie Preprocessor took 52.67 ms. Allocated memory is still 88.1 MB. Free memory was 56.1 MB in the beginning and 50.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 10:00:48,558 INFO L168 Benchmark]: RCFGBuilder took 6268.01 ms. Allocated memory was 88.1 MB in the beginning and 243.3 MB in the end (delta: 155.2 MB). Free memory was 50.9 MB in the beginning and 153.0 MB in the end (delta: -102.2 MB). Peak memory consumption was 139.4 MB. Max. memory is 16.1 GB. [2020-12-09 10:00:48,558 INFO L168 Benchmark]: TraceAbstraction took 19625.38 ms. Allocated memory was 243.3 MB in the beginning and 601.9 MB in the end (delta: 358.6 MB). Free memory was 153.0 MB in the beginning and 256.7 MB in the end (delta: -103.6 MB). Peak memory consumption was 351.5 MB. Max. memory is 16.1 GB. [2020-12-09 10:00:48,562 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 88.1 MB. Free memory was 63.6 MB in the beginning and 63.5 MB in the end (delta: 115.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 346.08 ms. Allocated memory is still 88.1 MB. Free memory was 66.8 MB in the beginning and 63.9 MB in the end (delta: 2.9 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.68 ms. Allocated memory is still 88.1 MB. Free memory was 63.9 MB in the beginning and 56.1 MB in the end (delta: 7.8 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.67 ms. Allocated memory is still 88.1 MB. Free memory was 56.1 MB in the beginning and 50.9 MB in the end (delta: 5.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 6268.01 ms. Allocated memory was 88.1 MB in the beginning and 243.3 MB in the end (delta: 155.2 MB). Free memory was 50.9 MB in the beginning and 153.0 MB in the end (delta: -102.2 MB). Peak memory consumption was 139.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19625.38 ms. Allocated memory was 243.3 MB in the beginning and 601.9 MB in the end (delta: 358.6 MB). Free memory was 153.0 MB in the beginning and 256.7 MB in the end (delta: -103.6 MB). Peak memory consumption was 351.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: variable got div captured de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: variable got div captured: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:426) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 10:00:50,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 10:00:50,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 10:00:50,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 10:00:50,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 10:00:50,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 10:00:50,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 10:00:50,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 10:00:50,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 10:00:50,260 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 10:00:50,261 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 10:00:50,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 10:00:50,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 10:00:50,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 10:00:50,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 10:00:50,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 10:00:50,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 10:00:50,269 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 10:00:50,271 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 10:00:50,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 10:00:50,275 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 10:00:50,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 10:00:50,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 10:00:50,278 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 10:00:50,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 10:00:50,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 10:00:50,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 10:00:50,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 10:00:50,284 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 10:00:50,285 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 10:00:50,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 10:00:50,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 10:00:50,287 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 10:00:50,288 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 10:00:50,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 10:00:50,289 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 10:00:50,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 10:00:50,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 10:00:50,289 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 10:00:50,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 10:00:50,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 10:00:50,291 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 10:00:50,318 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 10:00:50,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 10:00:50,320 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 10:00:50,320 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 10:00:50,320 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 10:00:50,320 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 10:00:50,321 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 10:00:50,321 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 10:00:50,321 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 10:00:50,322 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 10:00:50,322 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 10:00:50,322 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 10:00:50,322 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 10:00:50,322 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 10:00:50,323 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 10:00:50,323 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 10:00:50,323 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 10:00:50,323 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 10:00:50,323 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 10:00:50,324 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 10:00:50,324 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 10:00:50,324 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 10:00:50,324 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 10:00:50,324 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 10:00:50,325 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 10:00:50,325 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 10:00:50,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:00:50,325 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 10:00:50,325 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 10:00:50,326 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 10:00:50,326 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 10:00:50,326 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 10:00:50,326 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 10:00:50,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 10:00:50,327 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 10:00:50,327 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 542216decab4eb809f5dc567967fa4ce316925bd [2020-12-09 10:00:50,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 10:00:50,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 10:00:50,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 10:00:50,593 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 10:00:50,593 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 10:00:50,594 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem10_label49.c [2020-12-09 10:00:50,633 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/data/b8c848371/583ce733629946c89dc0978cec46f8c5/FLAGc22b20b2e [2020-12-09 10:00:51,104 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 10:00:51,104 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/sv-benchmarks/c/eca-rers2012/Problem10_label49.c [2020-12-09 10:00:51,113 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/data/b8c848371/583ce733629946c89dc0978cec46f8c5/FLAGc22b20b2e [2020-12-09 10:00:51,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/data/b8c848371/583ce733629946c89dc0978cec46f8c5 [2020-12-09 10:00:51,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 10:00:51,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 10:00:51,647 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 10:00:51,647 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 10:00:51,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 10:00:51,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:00:51" (1/1) ... [2020-12-09 10:00:51,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12a3704f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:51, skipping insertion in model container [2020-12-09 10:00:51,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 10:00:51" (1/1) ... [2020-12-09 10:00:51,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 10:00:51,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 10:00:51,793 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/sv-benchmarks/c/eca-rers2012/Problem10_label49.c[2714,2727] [2020-12-09 10:00:51,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:00:51,925 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 10:00:51,938 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/sv-benchmarks/c/eca-rers2012/Problem10_label49.c[2714,2727] [2020-12-09 10:00:52,000 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 10:00:52,011 INFO L208 MainTranslator]: Completed translation [2020-12-09 10:00:52,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:52 WrapperNode [2020-12-09 10:00:52,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 10:00:52,012 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 10:00:52,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 10:00:52,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 10:00:52,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:52" (1/1) ... [2020-12-09 10:00:52,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:52" (1/1) ... [2020-12-09 10:00:52,066 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 10:00:52,067 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 10:00:52,067 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 10:00:52,067 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 10:00:52,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:52" (1/1) ... [2020-12-09 10:00:52,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:52" (1/1) ... [2020-12-09 10:00:52,078 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:52" (1/1) ... [2020-12-09 10:00:52,078 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:52" (1/1) ... [2020-12-09 10:00:52,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:52" (1/1) ... [2020-12-09 10:00:52,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:52" (1/1) ... [2020-12-09 10:00:52,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:52" (1/1) ... [2020-12-09 10:00:52,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 10:00:52,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 10:00:52,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 10:00:52,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 10:00:52,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:52" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 10:00:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 10:00:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 10:00:52,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 10:00:52,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 10:00:54,151 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 10:00:54,152 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 10:00:54,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:00:54 BoogieIcfgContainer [2020-12-09 10:00:54,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 10:00:54,157 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 10:00:54,158 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 10:00:54,160 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 10:00:54,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 10:00:51" (1/3) ... [2020-12-09 10:00:54,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c382d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:00:54, skipping insertion in model container [2020-12-09 10:00:54,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 10:00:52" (2/3) ... [2020-12-09 10:00:54,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c382d89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 10:00:54, skipping insertion in model container [2020-12-09 10:00:54,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:00:54" (3/3) ... [2020-12-09 10:00:54,162 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label49.c [2020-12-09 10:00:54,171 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 10:00:54,174 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 10:00:54,181 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 10:00:54,199 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 10:00:54,199 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 10:00:54,199 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 10:00:54,199 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 10:00:54,199 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 10:00:54,199 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 10:00:54,199 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 10:00:54,200 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 10:00:54,212 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states. [2020-12-09 10:00:54,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-09 10:00:54,216 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:00:54,216 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:00:54,217 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:00:54,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:00:54,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1644072970, now seen corresponding path program 1 times [2020-12-09 10:00:54,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:00:54,230 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1589797144] [2020-12-09 10:00:54,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 10:00:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:00:54,293 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 10:00:54,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:00:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:00:54,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:00:54,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1589797144] [2020-12-09 10:00:54,353 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:00:54,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:00:54,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058149039] [2020-12-09 10:00:54,358 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:00:54,359 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:00:54,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:00:54,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:00:54,374 INFO L87 Difference]: Start difference. First operand 206 states. Second operand 3 states. [2020-12-09 10:00:57,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:00:57,029 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2020-12-09 10:00:57,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:00:57,030 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-09 10:00:57,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:00:57,039 INFO L225 Difference]: With dead ends: 552 [2020-12-09 10:00:57,039 INFO L226 Difference]: Without dead ends: 282 [2020-12-09 10:00:57,042 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:00:57,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-12-09 10:00:57,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2020-12-09 10:00:57,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 282 states. [2020-12-09 10:00:57,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 407 transitions. [2020-12-09 10:00:57,078 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 407 transitions. Word has length 22 [2020-12-09 10:00:57,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:00:57,078 INFO L481 AbstractCegarLoop]: Abstraction has 282 states and 407 transitions. [2020-12-09 10:00:57,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:00:57,079 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 407 transitions. [2020-12-09 10:00:57,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2020-12-09 10:00:57,081 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:00:57,082 INFO L422 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] [2020-12-09 10:00:57,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 10:00:57,284 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:00:57,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:00:57,287 INFO L82 PathProgramCache]: Analyzing trace with hash -634365679, now seen corresponding path program 1 times [2020-12-09 10:00:57,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:00:57,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1898708599] [2020-12-09 10:00:57,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 10:00:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:00:57,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 10:00:57,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:00:57,445 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:00:57,445 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:00:57,445 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1898708599] [2020-12-09 10:00:57,446 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:00:57,446 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:00:57,446 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420591096] [2020-12-09 10:00:57,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:00:57,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:00:57,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:00:57,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:00:57,449 INFO L87 Difference]: Start difference. First operand 282 states and 407 transitions. Second operand 3 states. [2020-12-09 10:00:59,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:00:59,907 INFO L93 Difference]: Finished difference Result 840 states and 1216 transitions. [2020-12-09 10:00:59,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:00:59,907 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2020-12-09 10:00:59,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:00:59,911 INFO L225 Difference]: With dead ends: 840 [2020-12-09 10:00:59,912 INFO L226 Difference]: Without dead ends: 560 [2020-12-09 10:00:59,914 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:00:59,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2020-12-09 10:00:59,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2020-12-09 10:00:59,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-12-09 10:00:59,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 715 transitions. [2020-12-09 10:00:59,944 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 715 transitions. Word has length 90 [2020-12-09 10:00:59,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:00:59,945 INFO L481 AbstractCegarLoop]: Abstraction has 560 states and 715 transitions. [2020-12-09 10:00:59,945 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:00:59,945 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 715 transitions. [2020-12-09 10:00:59,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2020-12-09 10:00:59,947 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:00:59,947 INFO L422 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] [2020-12-09 10:01:00,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 10:01:00,149 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:01:00,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:01:00,151 INFO L82 PathProgramCache]: Analyzing trace with hash -751446652, now seen corresponding path program 1 times [2020-12-09 10:01:00,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:01:00,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1463268504] [2020-12-09 10:01:00,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 10:01:00,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:00,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 10:01:00,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:00,385 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:01:00,385 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:01:00,616 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:01:00,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1463268504] [2020-12-09 10:01:00,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [195863556] [2020-12-09 10:01:00,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/cvc4 Starting monitored process 5 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4 --incremental --print-success --lang smt [2020-12-09 10:01:00,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:00,690 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 10:01:00,692 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:00,774 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:01:00,774 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:01:00,774 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 10:01:00,774 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 8 [2020-12-09 10:01:00,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431045990] [2020-12-09 10:01:00,775 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:01:00,775 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:01:00,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:01:00,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-09 10:01:00,776 INFO L87 Difference]: Start difference. First operand 560 states and 715 transitions. Second operand 3 states. [2020-12-09 10:01:03,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:01:03,335 INFO L93 Difference]: Finished difference Result 1396 states and 1832 transitions. [2020-12-09 10:01:03,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:01:03,335 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 97 [2020-12-09 10:01:03,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:01:03,339 INFO L225 Difference]: With dead ends: 1396 [2020-12-09 10:01:03,339 INFO L226 Difference]: Without dead ends: 838 [2020-12-09 10:01:03,340 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-12-09 10:01:03,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2020-12-09 10:01:03,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2020-12-09 10:01:03,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-12-09 10:01:03,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1043 transitions. [2020-12-09 10:01:03,358 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1043 transitions. Word has length 97 [2020-12-09 10:01:03,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:01:03,358 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1043 transitions. [2020-12-09 10:01:03,358 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:01:03,358 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1043 transitions. [2020-12-09 10:01:03,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-12-09 10:01:03,362 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:01:03,362 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:01:03,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3,5 cvc4 --incremental --print-success --lang smt [2020-12-09 10:01:03,764 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:01:03,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:01:03,766 INFO L82 PathProgramCache]: Analyzing trace with hash 306595737, now seen corresponding path program 1 times [2020-12-09 10:01:03,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:01:03,770 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [119533694] [2020-12-09 10:01:03,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 10:01:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:03,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 10:01:03,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:04,101 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 88 proven. 18 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 10:01:04,102 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:01:04,496 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-12-09 10:01:04,497 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [119533694] [2020-12-09 10:01:04,497 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 10:01:04,497 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 10:01:04,497 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965868702] [2020-12-09 10:01:04,497 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 10:01:04,497 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:01:04,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 10:01:04,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-09 10:01:04,498 INFO L87 Difference]: Start difference. First operand 838 states and 1043 transitions. Second operand 4 states. [2020-12-09 10:01:32,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:01:32,529 INFO L93 Difference]: Finished difference Result 2110 states and 2656 transitions. [2020-12-09 10:01:32,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 10:01:32,531 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 166 [2020-12-09 10:01:32,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:01:32,536 INFO L225 Difference]: With dead ends: 2110 [2020-12-09 10:01:32,537 INFO L226 Difference]: Without dead ends: 1255 [2020-12-09 10:01:32,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 326 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-12-09 10:01:32,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1255 states. [2020-12-09 10:01:32,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1255 to 838. [2020-12-09 10:01:32,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 838 states. [2020-12-09 10:01:32,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1039 transitions. [2020-12-09 10:01:32,554 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1039 transitions. Word has length 166 [2020-12-09 10:01:32,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:01:32,555 INFO L481 AbstractCegarLoop]: Abstraction has 838 states and 1039 transitions. [2020-12-09 10:01:32,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 10:01:32,555 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1039 transitions. [2020-12-09 10:01:32,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-12-09 10:01:32,557 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:01:32,557 INFO L422 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] [2020-12-09 10:01:32,758 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 10:01:32,758 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:01:32,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:01:32,760 INFO L82 PathProgramCache]: Analyzing trace with hash 763539440, now seen corresponding path program 1 times [2020-12-09 10:01:32,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:01:32,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829120306] [2020-12-09 10:01:32,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 10:01:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:32,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 10:01:32,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:33,060 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 39 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:01:33,060 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:01:33,303 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 39 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:01:33,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829120306] [2020-12-09 10:01:33,304 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2124276920] [2020-12-09 10:01:33,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/cvc4 Starting monitored process 8 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4 --incremental --print-success --lang smt [2020-12-09 10:01:33,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:33,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 10:01:33,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:33,611 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 91 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:01:33,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:01:33,745 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 91 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:01:33,745 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911975984] [2020-12-09 10:01:33,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 10:01:33,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:33,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 10:01:33,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:33,943 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-12-09 10:01:33,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:01:33,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 10:01:33,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3, 5, 5] total 10 [2020-12-09 10:01:33,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027083918] [2020-12-09 10:01:33,944 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:01:33,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:01:33,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:01:33,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-12-09 10:01:33,945 INFO L87 Difference]: Start difference. First operand 838 states and 1039 transitions. Second operand 3 states. [2020-12-09 10:01:38,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:01:38,330 INFO L93 Difference]: Finished difference Result 2508 states and 3112 transitions. [2020-12-09 10:01:38,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:01:38,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 174 [2020-12-09 10:01:38,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:01:38,337 INFO L225 Difference]: With dead ends: 2508 [2020-12-09 10:01:38,337 INFO L226 Difference]: Without dead ends: 1672 [2020-12-09 10:01:38,338 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 865 GetRequests, 855 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-12-09 10:01:38,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1672 states. [2020-12-09 10:01:38,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1672 to 1672. [2020-12-09 10:01:38,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1672 states. [2020-12-09 10:01:38,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1672 states to 1672 states and 1978 transitions. [2020-12-09 10:01:38,360 INFO L78 Accepts]: Start accepts. Automaton has 1672 states and 1978 transitions. Word has length 174 [2020-12-09 10:01:38,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:01:38,360 INFO L481 AbstractCegarLoop]: Abstraction has 1672 states and 1978 transitions. [2020-12-09 10:01:38,360 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:01:38,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1672 states and 1978 transitions. [2020-12-09 10:01:38,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-12-09 10:01:38,362 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:01:38,362 INFO L422 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] [2020-12-09 10:01:38,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,7 mathsat -unsat_core_generation=3,8 cvc4 --incremental --print-success --lang smt [2020-12-09 10:01:38,965 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:01:38,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:01:38,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1933258404, now seen corresponding path program 1 times [2020-12-09 10:01:38,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:01:38,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [178477156] [2020-12-09 10:01:38,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-12-09 10:01:39,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:39,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 10:01:39,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:39,152 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:01:39,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:01:39,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [178477156] [2020-12-09 10:01:39,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:01:39,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 10:01:39,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377050313] [2020-12-09 10:01:39,153 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:01:39,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:01:39,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:01:39,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:01:39,154 INFO L87 Difference]: Start difference. First operand 1672 states and 1978 transitions. Second operand 3 states. [2020-12-09 10:01:41,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:01:41,705 INFO L93 Difference]: Finished difference Result 3898 states and 4694 transitions. [2020-12-09 10:01:41,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:01:41,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 182 [2020-12-09 10:01:41,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:01:41,713 INFO L225 Difference]: With dead ends: 3898 [2020-12-09 10:01:41,713 INFO L226 Difference]: Without dead ends: 2228 [2020-12-09 10:01:41,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:01:41,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2020-12-09 10:01:41,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2089. [2020-12-09 10:01:41,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-12-09 10:01:41,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2421 transitions. [2020-12-09 10:01:41,741 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2421 transitions. Word has length 182 [2020-12-09 10:01:41,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:01:41,742 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2421 transitions. [2020-12-09 10:01:41,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:01:41,742 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2421 transitions. [2020-12-09 10:01:41,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-12-09 10:01:41,744 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:01:41,744 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 10:01:41,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-12-09 10:01:41,945 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:01:41,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:01:41,945 INFO L82 PathProgramCache]: Analyzing trace with hash -51833937, now seen corresponding path program 1 times [2020-12-09 10:01:41,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:01:41,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1052346317] [2020-12-09 10:01:41,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-12-09 10:01:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:42,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 10:01:42,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:42,179 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 91 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-12-09 10:01:42,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:01:42,180 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1052346317] [2020-12-09 10:01:42,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 10:01:42,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 10:01:42,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264365449] [2020-12-09 10:01:42,180 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:01:42,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:01:42,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:01:42,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:01:42,181 INFO L87 Difference]: Start difference. First operand 2089 states and 2421 transitions. Second operand 3 states. [2020-12-09 10:01:44,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:01:44,200 INFO L93 Difference]: Finished difference Result 4315 states and 4988 transitions. [2020-12-09 10:01:44,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:01:44,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-12-09 10:01:44,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:01:44,211 INFO L225 Difference]: With dead ends: 4315 [2020-12-09 10:01:44,211 INFO L226 Difference]: Without dead ends: 2228 [2020-12-09 10:01:44,212 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 10:01:44,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2228 states. [2020-12-09 10:01:44,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2228 to 2228. [2020-12-09 10:01:44,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2228 states. [2020-12-09 10:01:44,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2228 states to 2228 states and 2564 transitions. [2020-12-09 10:01:44,248 INFO L78 Accepts]: Start accepts. Automaton has 2228 states and 2564 transitions. Word has length 189 [2020-12-09 10:01:44,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:01:44,249 INFO L481 AbstractCegarLoop]: Abstraction has 2228 states and 2564 transitions. [2020-12-09 10:01:44,249 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:01:44,249 INFO L276 IsEmpty]: Start isEmpty. Operand 2228 states and 2564 transitions. [2020-12-09 10:01:44,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-12-09 10:01:44,252 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:01:44,252 INFO L422 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, 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] [2020-12-09 10:01:44,453 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-12-09 10:01:44,454 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:01:44,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:01:44,455 INFO L82 PathProgramCache]: Analyzing trace with hash 76640356, now seen corresponding path program 1 times [2020-12-09 10:01:44,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:01:44,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [866989662] [2020-12-09 10:01:44,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-12-09 10:01:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:44,638 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 10:01:44,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:44,931 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-12-09 10:01:44,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:01:45,324 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 173 proven. 15 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2020-12-09 10:01:45,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [866989662] [2020-12-09 10:01:45,324 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [975628391] [2020-12-09 10:01:45,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt [2020-12-09 10:01:45,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:45,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 10:01:45,466 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:45,738 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 10:01:45,739 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 10:01:45,742 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 10:01:45,747 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 10:01:45,751 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 10:01:45,755 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 10:01:45,757 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 10:01:45,760 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 10:01:45,934 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 173 proven. 20 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-12-09 10:01:45,934 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:01:46,160 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 10:01:46,161 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 10:01:46,347 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 178 proven. 15 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-12-09 10:01:46,347 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890559367] [2020-12-09 10:01:46,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 10:01:46,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:46,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 10:01:46,452 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:47,005 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-12-09 10:01:47,005 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:01:47,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 10:01:47,006 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 4, 8, 8] total 20 [2020-12-09 10:01:47,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950927783] [2020-12-09 10:01:47,006 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 10:01:47,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:01:47,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 10:01:47,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2020-12-09 10:01:47,007 INFO L87 Difference]: Start difference. First operand 2228 states and 2564 transitions. Second operand 7 states. [2020-12-09 10:01:49,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:01:49,934 INFO L93 Difference]: Finished difference Result 4270 states and 4928 transitions. [2020-12-09 10:01:49,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-09 10:01:49,938 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 265 [2020-12-09 10:01:49,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:01:49,945 INFO L225 Difference]: With dead ends: 4270 [2020-12-09 10:01:49,945 INFO L226 Difference]: Without dead ends: 2089 [2020-12-09 10:01:49,947 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1320 GetRequests, 1299 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2020-12-09 10:01:49,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-12-09 10:01:49,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2020-12-09 10:01:49,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-12-09 10:01:49,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2400 transitions. [2020-12-09 10:01:49,985 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2400 transitions. Word has length 265 [2020-12-09 10:01:49,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:01:49,985 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2400 transitions. [2020-12-09 10:01:49,985 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 10:01:49,985 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2400 transitions. [2020-12-09 10:01:49,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-12-09 10:01:49,990 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:01:49,991 INFO L422 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, 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] [2020-12-09 10:01:50,592 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,13 cvc4 --incremental --print-success --lang smt,12 mathsat -unsat_core_generation=3 [2020-12-09 10:01:50,592 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:01:50,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:01:50,594 INFO L82 PathProgramCache]: Analyzing trace with hash 1440717452, now seen corresponding path program 1 times [2020-12-09 10:01:50,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:01:50,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1795841475] [2020-12-09 10:01:50,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-12-09 10:01:50,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:50,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjunts are in the unsatisfiable core [2020-12-09 10:01:50,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:50,955 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 127 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:01:50,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:01:51,617 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-12-09 10:01:51,852 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 126 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:01:51,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1795841475] [2020-12-09 10:01:51,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1098910514] [2020-12-09 10:01:51,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/cvc4 Starting monitored process 16 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4 --incremental --print-success --lang smt [2020-12-09 10:01:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:52,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 10:01:52,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:52,426 INFO L134 CoverageAnalysis]: Checked inductivity of 262 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-12-09 10:01:52,426 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:01:52,426 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 10:01:52,426 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4] total 9 [2020-12-09 10:01:52,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722077362] [2020-12-09 10:01:52,427 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 10:01:52,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:01:52,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 10:01:52,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-12-09 10:01:52,427 INFO L87 Difference]: Start difference. First operand 2089 states and 2400 transitions. Second operand 3 states. [2020-12-09 10:01:54,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:01:54,625 INFO L93 Difference]: Finished difference Result 4037 states and 4655 transitions. [2020-12-09 10:01:54,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 10:01:54,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2020-12-09 10:01:54,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:01:54,632 INFO L225 Difference]: With dead ends: 4037 [2020-12-09 10:01:54,633 INFO L226 Difference]: Without dead ends: 2089 [2020-12-09 10:01:54,634 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 799 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-12-09 10:01:54,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2089 states. [2020-12-09 10:01:54,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2089 to 2089. [2020-12-09 10:01:54,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2089 states. [2020-12-09 10:01:54,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2089 states to 2089 states and 2387 transitions. [2020-12-09 10:01:54,662 INFO L78 Accepts]: Start accepts. Automaton has 2089 states and 2387 transitions. Word has length 270 [2020-12-09 10:01:54,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:01:54,663 INFO L481 AbstractCegarLoop]: Abstraction has 2089 states and 2387 transitions. [2020-12-09 10:01:54,663 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 10:01:54,663 INFO L276 IsEmpty]: Start isEmpty. Operand 2089 states and 2387 transitions. [2020-12-09 10:01:54,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2020-12-09 10:01:54,665 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 10:01:54,665 INFO L422 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, 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] [2020-12-09 10:01:55,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 cvc4 --incremental --print-success --lang smt,15 mathsat -unsat_core_generation=3 [2020-12-09 10:01:55,066 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 10:01:55,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 10:01:55,068 INFO L82 PathProgramCache]: Analyzing trace with hash 593345289, now seen corresponding path program 1 times [2020-12-09 10:01:55,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 10:01:55,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1280854307] [2020-12-09 10:01:55,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-12-09 10:01:55,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:55,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 10:01:55,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:55,496 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:01:55,496 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 10:01:56,497 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-09 10:01:56,766 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 10:01:56,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1280854307] [2020-12-09 10:01:56,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1212528265] [2020-12-09 10:01:56,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/cvc4 Starting monitored process 18 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt [2020-12-09 10:01:56,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 10:01:56,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 10:01:56,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 10:01:57,438 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-12-09 10:01:57,438 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 10:01:57,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 10:01:57,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 12 [2020-12-09 10:01:57,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469233653] [2020-12-09 10:01:57,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 10:01:57,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 10:01:57,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 10:01:57,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-12-09 10:01:57,440 INFO L87 Difference]: Start difference. First operand 2089 states and 2387 transitions. Second operand 5 states. [2020-12-09 10:02:01,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 10:02:01,696 INFO L93 Difference]: Finished difference Result 4613 states and 5355 transitions. [2020-12-09 10:02:01,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 10:02:01,696 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 270 [2020-12-09 10:02:01,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 10:02:01,697 INFO L225 Difference]: With dead ends: 4613 [2020-12-09 10:02:01,697 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 10:02:01,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 809 GetRequests, 798 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2020-12-09 10:02:01,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 10:02:01,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 10:02:01,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 10:02:01,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 10:02:01,699 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 270 [2020-12-09 10:02:01,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 10:02:01,700 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 10:02:01,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 10:02:01,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 10:02:01,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 10:02:02,100 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3,18 cvc4 --incremental --print-success --lang smt [2020-12-09 10:02:02,101 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 10:02:02,487 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 32 [2020-12-09 10:02:02,718 WARN L197 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 32 [2020-12-09 10:02:02,721 INFO L262 CegarLoopResult]: For program point L597(line 597) no Hoare annotation was computed. [2020-12-09 10:02:02,721 INFO L262 CegarLoopResult]: For program point L564(lines 564 582) no Hoare annotation was computed. [2020-12-09 10:02:02,721 INFO L262 CegarLoopResult]: For program point L333(lines 333 582) no Hoare annotation was computed. [2020-12-09 10:02:02,722 INFO L262 CegarLoopResult]: For program point L367(lines 367 582) no Hoare annotation was computed. [2020-12-09 10:02:02,722 INFO L262 CegarLoopResult]: For program point L301(lines 301 582) no Hoare annotation was computed. [2020-12-09 10:02:02,722 INFO L262 CegarLoopResult]: For program point L235(lines 235 582) no Hoare annotation was computed. [2020-12-09 10:02:02,722 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,722 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,722 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,722 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,722 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,722 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,722 INFO L262 CegarLoopResult]: For program point L533(lines 533 582) no Hoare annotation was computed. [2020-12-09 10:02:02,722 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-09 10:02:02,722 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-09 10:02:02,722 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-09 10:02:02,722 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L567(lines 567 582) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L435(lines 435 582) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L336(lines 336 582) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L270(lines 270 582) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L403(lines 403 582) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L370(lines 370 582) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,723 INFO L262 CegarLoopResult]: For program point L536(lines 536 582) no Hoare annotation was computed. [2020-12-09 10:02:02,724 INFO L262 CegarLoopResult]: For program point L503(lines 503 582) no Hoare annotation was computed. [2020-12-09 10:02:02,724 INFO L262 CegarLoopResult]: For program point L470(lines 470 582) no Hoare annotation was computed. [2020-12-09 10:02:02,724 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-09 10:02:02,724 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-09 10:02:02,724 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-09 10:02:02,724 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-09 10:02:02,724 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-09 10:02:02,724 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-09 10:02:02,724 INFO L262 CegarLoopResult]: For program point L339(lines 339 582) no Hoare annotation was computed. [2020-12-09 10:02:02,724 INFO L262 CegarLoopResult]: For program point L306(lines 306 582) no Hoare annotation was computed. [2020-12-09 10:02:02,724 INFO L262 CegarLoopResult]: For program point L241(lines 241 582) no Hoare annotation was computed. [2020-12-09 10:02:02,724 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,724 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L539(lines 539 582) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L440(lines 440 582) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L275(lines 275 582) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L573(lines 573 582) no Hoare annotation was computed. [2020-12-09 10:02:02,725 INFO L262 CegarLoopResult]: For program point L408(lines 408 582) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L375(lines 375 582) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L475(lines 475 582) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L509(lines 509 582) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L311(lines 311 582) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L345(lines 345 582) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L246(lines 246 582) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L544(lines 544 582) no Hoare annotation was computed. [2020-12-09 10:02:02,726 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L446(lines 446 582) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L413(lines 413 582) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L380(lines 380 582) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L281(lines 281 582) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L579(lines 579 582) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L249(lines 249 582) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L514(lines 514 582) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L481(lines 481 582) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L316(lines 316 582) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L350(lines 350 582) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 10:02:02,727 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-09 10:02:02,728 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-09 10:02:02,728 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-09 10:02:02,728 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-09 10:02:02,728 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-09 10:02:02,728 INFO L258 CegarLoopResult]: At program point L583(lines 30 584) the Hoare annotation is: (let ((.cse2 (bvslt (_ bv218 32) ~a1~0)) (.cse0 (= (_ bv0 32) (bvadd ~a4~0 (_ bv4294967282 32)))) (.cse1 (= (_ bv0 32) ~a12~0))) (or (and .cse0 (= (_ bv1 32) ~a10~0) .cse1 .cse2) (and .cse0 (= (_ bv0 32) ~a10~0) .cse1) (and .cse0 (= (_ bv4 32) ~a10~0) .cse1) (and (= (_ bv2 32) ~a10~0) .cse0 .cse1 .cse2) (and (or (not (= (_ bv8 32) ~a19~0)) (not (bvslt (_ bv38 32) ~a1~0))) .cse0 .cse1))) [2020-12-09 10:02:02,728 INFO L262 CegarLoopResult]: For program point L550(lines 550 582) no Hoare annotation was computed. [2020-12-09 10:02:02,728 INFO L262 CegarLoopResult]: For program point L418(lines 418 582) no Hoare annotation was computed. [2020-12-09 10:02:02,728 INFO L262 CegarLoopResult]: For program point L385(lines 385 582) no Hoare annotation was computed. [2020-12-09 10:02:02,728 INFO L262 CegarLoopResult]: For program point L220(lines 220 582) no Hoare annotation was computed. [2020-12-09 10:02:02,728 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,728 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L452(lines 452 582) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L287(lines 287 582) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L254(lines 254 582) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L519(lines 519 582) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L486(lines 486 582) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L265 CegarLoopResult]: At program point L586(lines 586 602) the Hoare annotation is: true [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L388(lines 388 582) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L355(lines 355 582) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L322(lines 322 582) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,729 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L555(lines 555 582) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L225(lines 225 582) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L424(lines 424 582) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L259(lines 259 582) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L524(lines 524 582) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L491(lines 491 582) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L458(lines 458 582) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L293(lines 293 582) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-09 10:02:02,730 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L558(lines 558 582) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L393(lines 393 582) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L327(lines 327 582) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L258 CegarLoopResult]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse2 (bvslt (_ bv218 32) ~a1~0)) (.cse0 (= (_ bv0 32) (bvadd ~a4~0 (_ bv4294967282 32)))) (.cse1 (= (_ bv0 32) ~a12~0))) (or (and .cse0 (= (_ bv1 32) ~a10~0) .cse1 .cse2) (and .cse0 (= (_ bv0 32) ~a10~0) .cse1) (and .cse0 (= (_ bv4 32) ~a10~0) .cse1) (and (= (_ bv2 32) ~a10~0) .cse0 .cse1 .cse2) (and (or (not (= (_ bv8 32) ~a19~0)) (not (bvslt (_ bv38 32) ~a1~0))) .cse0 .cse1))) [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L361(lines 361 582) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L527(lines 527 582) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L296(lines 296 582) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L230(lines 230 582) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-09 10:02:02,731 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L429(lines 429 582) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L330(lines 330 582) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L264(lines 264 582) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L364(lines 364 582) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L497(lines 497 582) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L464(lines 464 582) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L398(lines 398 582) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-09 10:02:02,732 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-09 10:02:02,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 10:02:02 BoogieIcfgContainer [2020-12-09 10:02:02,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 10:02:02,746 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 10:02:02,746 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 10:02:02,746 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 10:02:02,747 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 10:00:54" (3/4) ... [2020-12-09 10:02:02,749 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 10:02:02,763 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 10:02:02,764 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 10:02:02,765 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 10:02:02,765 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 10:02:02,841 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3793a2b2-d646-4dc0-8244-20bcac8bb468/bin/utaipan/witness.graphml [2020-12-09 10:02:02,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 10:02:02,842 INFO L168 Benchmark]: Toolchain (without parser) took 71195.66 ms. Allocated memory was 67.1 MB in the beginning and 174.1 MB in the end (delta: 107.0 MB). Free memory was 48.1 MB in the beginning and 34.4 MB in the end (delta: 13.7 MB). Peak memory consumption was 120.1 MB. Max. memory is 16.1 GB. [2020-12-09 10:02:02,842 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 67.1 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 10:02:02,842 INFO L168 Benchmark]: CACSL2BoogieTranslator took 364.92 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 47.9 MB in the beginning and 60.6 MB in the end (delta: -12.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. [2020-12-09 10:02:02,843 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.20 ms. Allocated memory is still 81.8 MB. Free memory was 60.6 MB in the beginning and 55.1 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 10:02:02,843 INFO L168 Benchmark]: Boogie Preprocessor took 46.46 ms. Allocated memory is still 81.8 MB. Free memory was 55.1 MB in the beginning and 50.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-09 10:02:02,843 INFO L168 Benchmark]: RCFGBuilder took 2039.71 ms. Allocated memory is still 81.8 MB. Free memory was 50.5 MB in the beginning and 30.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. [2020-12-09 10:02:02,843 INFO L168 Benchmark]: TraceAbstraction took 68588.46 ms. Allocated memory was 81.8 MB in the beginning and 174.1 MB in the end (delta: 92.3 MB). Free memory was 58.6 MB in the beginning and 49.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 101.0 MB. Max. memory is 16.1 GB. [2020-12-09 10:02:02,844 INFO L168 Benchmark]: Witness Printer took 95.01 ms. Allocated memory is still 174.1 MB. Free memory was 49.3 MB in the beginning and 34.4 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-12-09 10:02:02,845 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 67.1 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 364.92 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 47.9 MB in the beginning and 60.6 MB in the end (delta: -12.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 54.20 ms. Allocated memory is still 81.8 MB. Free memory was 60.6 MB in the beginning and 55.1 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.46 ms. Allocated memory is still 81.8 MB. Free memory was 55.1 MB in the beginning and 50.9 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2039.71 ms. Allocated memory is still 81.8 MB. Free memory was 50.5 MB in the beginning and 30.1 MB in the end (delta: 20.4 MB). Peak memory consumption was 23.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 68588.46 ms. Allocated memory was 81.8 MB in the beginning and 174.1 MB in the end (delta: 92.3 MB). Free memory was 58.6 MB in the beginning and 49.3 MB in the end (delta: 9.2 MB). Peak memory consumption was 101.0 MB. Max. memory is 16.1 GB. * Witness Printer took 95.01 ms. Allocated memory is still 174.1 MB. Free memory was 49.3 MB in the beginning and 34.4 MB in the end (delta: 14.9 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 80]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: ((((((0bv32 == ~bvadd64(a4, 4294967282bv32) && 1bv32 == a10) && 0bv32 == a12) && ~bvslt32(218bv32, a1)) || ((0bv32 == ~bvadd64(a4, 4294967282bv32) && 0bv32 == a10) && 0bv32 == a12)) || ((0bv32 == ~bvadd64(a4, 4294967282bv32) && 4bv32 == a10) && 0bv32 == a12)) || (((2bv32 == a10 && 0bv32 == ~bvadd64(a4, 4294967282bv32)) && 0bv32 == a12) && ~bvslt32(218bv32, a1))) || (((!(8bv32 == a19) || !~bvslt32(38bv32, a1)) && 0bv32 == ~bvadd64(a4, 4294967282bv32)) && 0bv32 == a12) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((((0bv32 == ~bvadd64(a4, 4294967282bv32) && 1bv32 == a10) && 0bv32 == a12) && ~bvslt32(218bv32, a1)) || ((0bv32 == ~bvadd64(a4, 4294967282bv32) && 0bv32 == a10) && 0bv32 == a12)) || ((0bv32 == ~bvadd64(a4, 4294967282bv32) && 4bv32 == a10) && 0bv32 == a12)) || (((2bv32 == a10 && 0bv32 == ~bvadd64(a4, 4294967282bv32)) && 0bv32 == a12) && ~bvslt32(218bv32, a1))) || (((!(8bv32 == a19) || !~bvslt32(38bv32, a1)) && 0bv32 == ~bvadd64(a4, 4294967282bv32)) && 0bv32 == a12) - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 206 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 67.9s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 54.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1106 SDtfs, 1194 SDslu, 83 SDs, 0 SdLazy, 4983 SolverSat, 713 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 48.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4898 GetRequests, 4834 SyntacticMatches, 6 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 3.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2228occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 556 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 53 NumberOfFragments, 147 HoareAnnotationTreeSize, 3 FomulaSimplifications, 1804 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 22 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 3240 NumberOfCodeBlocks, 3240 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 4896 ConstructedInterpolants, 0 QuantifiedInterpolants, 6344455 SizeOfPredicates, 42 NumberOfNonLiveVariables, 4212 ConjunctsInSsa, 82 ConjunctsInUnsatCore, 25 InterpolantComputations, 10 PerfectInterpolantSequences, 2482/3548 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...