./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1a.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 678e0110 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/MutualRecursion_1a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c27ad91a5bec233234e07a14bfd5505e082df4cd ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-678e011 [2019-11-20 07:48:43,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-20 07:48:43,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-20 07:48:43,781 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-20 07:48:43,782 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-20 07:48:43,783 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-20 07:48:43,785 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-20 07:48:43,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-20 07:48:43,801 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-20 07:48:43,804 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-20 07:48:43,805 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-20 07:48:43,806 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-20 07:48:43,807 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-20 07:48:43,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-20 07:48:43,808 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-20 07:48:43,810 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-20 07:48:43,810 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-20 07:48:43,811 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-20 07:48:43,815 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-20 07:48:43,820 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-20 07:48:43,824 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-20 07:48:43,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-20 07:48:43,830 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-20 07:48:43,831 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-20 07:48:43,834 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-20 07:48:43,835 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-20 07:48:43,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-20 07:48:43,838 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-20 07:48:43,838 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-20 07:48:43,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-20 07:48:43,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-20 07:48:43,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-20 07:48:43,841 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-20 07:48:43,842 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-20 07:48:43,843 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-20 07:48:43,843 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-20 07:48:43,844 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-20 07:48:43,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-20 07:48:43,845 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-20 07:48:43,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-20 07:48:43,847 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-20 07:48:43,848 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2019-11-20 07:48:43,879 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-20 07:48:43,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-20 07:48:43,881 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-20 07:48:43,881 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-20 07:48:43,881 INFO L138 SettingsManager]: * Use SBE=true [2019-11-20 07:48:43,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-20 07:48:43,882 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-20 07:48:43,882 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-20 07:48:43,882 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-20 07:48:43,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-20 07:48:43,883 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-20 07:48:43,883 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-20 07:48:43,883 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-20 07:48:43,883 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-20 07:48:43,883 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-20 07:48:43,884 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-20 07:48:43,884 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-20 07:48:43,884 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-20 07:48:43,884 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-20 07:48:43,885 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-20 07:48:43,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-20 07:48:43,885 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-20 07:48:43,885 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-20 07:48:43,886 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-20 07:48:43,886 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-20 07:48:43,886 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-20 07:48:43,886 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-20 07:48:43,886 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer 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 ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c27ad91a5bec233234e07a14bfd5505e082df4cd [2019-11-20 07:48:44,100 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-20 07:48:44,118 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-20 07:48:44,121 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-20 07:48:44,123 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-20 07:48:44,123 INFO L275 PluginConnector]: CDTParser initialized [2019-11-20 07:48:44,124 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/../../sv-benchmarks/c/termination-crafted/MutualRecursion_1a.c [2019-11-20 07:48:44,204 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/data/5d5970848/d9086559ad6e4a908174fb68ffe4c9ec/FLAG0e8097ccf [2019-11-20 07:48:44,695 INFO L306 CDTParser]: Found 1 translation units. [2019-11-20 07:48:44,696 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/sv-benchmarks/c/termination-crafted/MutualRecursion_1a.c [2019-11-20 07:48:44,704 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/data/5d5970848/d9086559ad6e4a908174fb68ffe4c9ec/FLAG0e8097ccf [2019-11-20 07:48:45,022 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/data/5d5970848/d9086559ad6e4a908174fb68ffe4c9ec [2019-11-20 07:48:45,025 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-20 07:48:45,027 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-20 07:48:45,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-20 07:48:45,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-20 07:48:45,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-20 07:48:45,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:48:45" (1/1) ... [2019-11-20 07:48:45,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58c3cb0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:45, skipping insertion in model container [2019-11-20 07:48:45,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:48:45" (1/1) ... [2019-11-20 07:48:45,046 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-20 07:48:45,063 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-20 07:48:45,284 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:48:45,291 INFO L188 MainTranslator]: Completed pre-run [2019-11-20 07:48:45,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-20 07:48:45,403 INFO L192 MainTranslator]: Completed translation [2019-11-20 07:48:45,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:45 WrapperNode [2019-11-20 07:48:45,404 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-20 07:48:45,405 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-20 07:48:45,405 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-20 07:48:45,405 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-20 07:48:45,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:45" (1/1) ... [2019-11-20 07:48:45,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:45" (1/1) ... [2019-11-20 07:48:45,442 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-20 07:48:45,442 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-20 07:48:45,443 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-20 07:48:45,443 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-20 07:48:45,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:45" (1/1) ... [2019-11-20 07:48:45,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:45" (1/1) ... [2019-11-20 07:48:45,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:45" (1/1) ... [2019-11-20 07:48:45,452 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:45" (1/1) ... [2019-11-20 07:48:45,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:45" (1/1) ... [2019-11-20 07:48:45,461 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:45" (1/1) ... [2019-11-20 07:48:45,462 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:45" (1/1) ... [2019-11-20 07:48:45,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-20 07:48:45,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-20 07:48:45,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-20 07:48:45,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-20 07:48:45,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/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 [2019-11-20 07:48:45,540 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-11-20 07:48:45,540 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-11-20 07:48:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-11-20 07:48:45,541 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-11-20 07:48:45,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-20 07:48:45,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-20 07:48:45,773 INFO L280 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-20 07:48:45,773 INFO L285 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-20 07:48:45,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:48:45 BoogieIcfgContainer [2019-11-20 07:48:45,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-20 07:48:45,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-20 07:48:45,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-20 07:48:45,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-20 07:48:45,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:48:45" (1/3) ... [2019-11-20 07:48:45,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cee8910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:48:45, skipping insertion in model container [2019-11-20 07:48:45,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:45" (2/3) ... [2019-11-20 07:48:45,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cee8910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:48:45, skipping insertion in model container [2019-11-20 07:48:45,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:48:45" (3/3) ... [2019-11-20 07:48:45,783 INFO L109 eAbstractionObserver]: Analyzing ICFG MutualRecursion_1a.c [2019-11-20 07:48:45,794 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-20 07:48:45,801 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2019-11-20 07:48:45,841 INFO L249 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2019-11-20 07:48:45,883 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-20 07:48:45,883 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-20 07:48:45,883 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-20 07:48:45,884 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-20 07:48:45,884 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-20 07:48:45,884 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-20 07:48:45,884 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-20 07:48:45,884 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-20 07:48:45,925 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2019-11-20 07:48:45,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-11-20 07:48:45,930 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:48:45,937 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-11-20 07:48:45,938 INFO L410 AbstractCegarLoop]: === Iteration 1 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 07:48:45,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:48:45,944 INFO L82 PathProgramCache]: Analyzing trace with hash 68150020, now seen corresponding path program 1 times [2019-11-20 07:48:45,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:48:45,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345547560] [2019-11-20 07:48:45,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:48:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:46,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:48:46,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345547560] [2019-11-20 07:48:46,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:48:46,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-20 07:48:46,132 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62923113] [2019-11-20 07:48:46,136 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:48:46,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:48:46,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:48:46,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:48:46,151 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 5 states. [2019-11-20 07:48:46,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:48:46,306 INFO L93 Difference]: Finished difference Result 64 states and 71 transitions. [2019-11-20 07:48:46,307 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 07:48:46,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2019-11-20 07:48:46,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:48:46,324 INFO L225 Difference]: With dead ends: 64 [2019-11-20 07:48:46,324 INFO L226 Difference]: Without dead ends: 56 [2019-11-20 07:48:46,327 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 07:48:46,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-20 07:48:46,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 50. [2019-11-20 07:48:46,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-11-20 07:48:46,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 59 transitions. [2019-11-20 07:48:46,380 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 59 transitions. Word has length 5 [2019-11-20 07:48:46,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:48:46,380 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 59 transitions. [2019-11-20 07:48:46,380 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:48:46,381 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 59 transitions. [2019-11-20 07:48:46,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-20 07:48:46,381 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:48:46,382 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-20 07:48:46,382 INFO L410 AbstractCegarLoop]: === Iteration 2 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 07:48:46,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:48:46,383 INFO L82 PathProgramCache]: Analyzing trace with hash 2112650676, now seen corresponding path program 1 times [2019-11-20 07:48:46,383 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:48:46,383 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384184242] [2019-11-20 07:48:46,384 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:48:46,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:46,405 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:48:46,405 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384184242] [2019-11-20 07:48:46,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:48:46,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 07:48:46,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240042521] [2019-11-20 07:48:46,408 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 07:48:46,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:48:46,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:48:46,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 07:48:46,409 INFO L87 Difference]: Start difference. First operand 50 states and 59 transitions. Second operand 3 states. [2019-11-20 07:48:46,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:48:46,454 INFO L93 Difference]: Finished difference Result 52 states and 62 transitions. [2019-11-20 07:48:46,454 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:48:46,454 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-11-20 07:48:46,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:48:46,456 INFO L225 Difference]: With dead ends: 52 [2019-11-20 07:48:46,456 INFO L226 Difference]: Without dead ends: 50 [2019-11-20 07:48:46,457 INFO L630 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 [2019-11-20 07:48:46,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-11-20 07:48:46,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2019-11-20 07:48:46,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-11-20 07:48:46,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2019-11-20 07:48:46,471 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 6 [2019-11-20 07:48:46,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:48:46,471 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2019-11-20 07:48:46,472 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 07:48:46,472 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2019-11-20 07:48:46,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-20 07:48:46,473 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:48:46,473 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:48:46,474 INFO L410 AbstractCegarLoop]: === Iteration 3 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 07:48:46,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:48:46,474 INFO L82 PathProgramCache]: Analyzing trace with hash 803040358, now seen corresponding path program 1 times [2019-11-20 07:48:46,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:48:46,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356393173] [2019-11-20 07:48:46,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:48:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:46,599 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-20 07:48:46,600 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356393173] [2019-11-20 07:48:46,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:48:46,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-11-20 07:48:46,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127059367] [2019-11-20 07:48:46,601 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-20 07:48:46,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:48:46,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-20 07:48:46,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-11-20 07:48:46,602 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand 9 states. [2019-11-20 07:48:46,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:48:46,903 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2019-11-20 07:48:46,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-20 07:48:46,904 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 13 [2019-11-20 07:48:46,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:48:46,905 INFO L225 Difference]: With dead ends: 66 [2019-11-20 07:48:46,905 INFO L226 Difference]: Without dead ends: 63 [2019-11-20 07:48:46,906 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2019-11-20 07:48:46,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2019-11-20 07:48:46,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 59. [2019-11-20 07:48:46,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2019-11-20 07:48:46,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 70 transitions. [2019-11-20 07:48:46,919 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 70 transitions. Word has length 13 [2019-11-20 07:48:46,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:48:46,920 INFO L462 AbstractCegarLoop]: Abstraction has 59 states and 70 transitions. [2019-11-20 07:48:46,920 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-20 07:48:46,920 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 70 transitions. [2019-11-20 07:48:46,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-20 07:48:46,925 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:48:46,926 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:48:46,926 INFO L410 AbstractCegarLoop]: === Iteration 4 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 07:48:46,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:48:46,927 INFO L82 PathProgramCache]: Analyzing trace with hash -265858514, now seen corresponding path program 1 times [2019-11-20 07:48:46,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:48:46,928 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965079723] [2019-11-20 07:48:46,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:48:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:46,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:46,995 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-11-20 07:48:46,996 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965079723] [2019-11-20 07:48:46,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:48:46,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-20 07:48:47,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481855716] [2019-11-20 07:48:47,001 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-20 07:48:47,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:48:47,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-20 07:48:47,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 07:48:47,003 INFO L87 Difference]: Start difference. First operand 59 states and 70 transitions. Second operand 3 states. [2019-11-20 07:48:47,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:48:47,020 INFO L93 Difference]: Finished difference Result 61 states and 77 transitions. [2019-11-20 07:48:47,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-20 07:48:47,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-11-20 07:48:47,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:48:47,028 INFO L225 Difference]: With dead ends: 61 [2019-11-20 07:48:47,030 INFO L226 Difference]: Without dead ends: 60 [2019-11-20 07:48:47,031 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-20 07:48:47,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2019-11-20 07:48:47,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2019-11-20 07:48:47,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-11-20 07:48:47,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2019-11-20 07:48:47,054 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 17 [2019-11-20 07:48:47,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:48:47,055 INFO L462 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2019-11-20 07:48:47,055 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-20 07:48:47,055 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2019-11-20 07:48:47,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-11-20 07:48:47,057 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:48:47,057 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:48:47,059 INFO L410 AbstractCegarLoop]: === Iteration 5 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 07:48:47,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:48:47,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1650762684, now seen corresponding path program 1 times [2019-11-20 07:48:47,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:48:47,060 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394285111] [2019-11-20 07:48:47,060 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:48:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:47,145 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 07:48:47,146 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394285111] [2019-11-20 07:48:47,146 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:48:47,146 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 07:48:47,146 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57096929] [2019-11-20 07:48:47,147 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:48:47,147 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:48:47,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:48:47,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:48:47,147 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand 5 states. [2019-11-20 07:48:47,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:48:47,208 INFO L93 Difference]: Finished difference Result 93 states and 122 transitions. [2019-11-20 07:48:47,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 07:48:47,209 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-11-20 07:48:47,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:48:47,211 INFO L225 Difference]: With dead ends: 93 [2019-11-20 07:48:47,211 INFO L226 Difference]: Without dead ends: 92 [2019-11-20 07:48:47,212 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 07:48:47,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2019-11-20 07:48:47,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 78. [2019-11-20 07:48:47,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-20 07:48:47,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2019-11-20 07:48:47,234 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 21 [2019-11-20 07:48:47,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:48:47,235 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2019-11-20 07:48:47,235 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:48:47,236 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2019-11-20 07:48:47,237 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-20 07:48:47,237 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:48:47,238 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:48:47,239 INFO L410 AbstractCegarLoop]: === Iteration 6 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 07:48:47,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:48:47,241 INFO L82 PathProgramCache]: Analyzing trace with hash 365964416, now seen corresponding path program 1 times [2019-11-20 07:48:47,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:48:47,242 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043696720] [2019-11-20 07:48:47,242 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:48:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:47,322 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 07:48:47,336 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043696720] [2019-11-20 07:48:47,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-20 07:48:47,337 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-20 07:48:47,337 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721119116] [2019-11-20 07:48:47,338 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:48:47,338 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:48:47,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:48:47,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-20 07:48:47,339 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand 5 states. [2019-11-20 07:48:47,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:48:47,398 INFO L93 Difference]: Finished difference Result 93 states and 119 transitions. [2019-11-20 07:48:47,399 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-20 07:48:47,399 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-11-20 07:48:47,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:48:47,401 INFO L225 Difference]: With dead ends: 93 [2019-11-20 07:48:47,401 INFO L226 Difference]: Without dead ends: 89 [2019-11-20 07:48:47,402 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-20 07:48:47,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2019-11-20 07:48:47,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 78. [2019-11-20 07:48:47,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-20 07:48:47,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 99 transitions. [2019-11-20 07:48:47,416 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 99 transitions. Word has length 22 [2019-11-20 07:48:47,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:48:47,416 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 99 transitions. [2019-11-20 07:48:47,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:48:47,417 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 99 transitions. [2019-11-20 07:48:47,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-11-20 07:48:47,418 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:48:47,419 INFO L410 BasicCegarLoop]: trace histogram [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] [2019-11-20 07:48:47,419 INFO L410 AbstractCegarLoop]: === Iteration 7 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 07:48:47,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:48:47,420 INFO L82 PathProgramCache]: Analyzing trace with hash -2082036524, now seen corresponding path program 1 times [2019-11-20 07:48:47,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:48:47,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441219375] [2019-11-20 07:48:47,420 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:48:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:47,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:47,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:47,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:47,635 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 07:48:47,635 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441219375] [2019-11-20 07:48:47,636 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [374560222] [2019-11-20 07:48:47,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/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 [2019-11-20 07:48:47,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:47,694 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 07:48:47,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:48:47,762 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 07:48:47,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:48:47,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7] total 14 [2019-11-20 07:48:47,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528046435] [2019-11-20 07:48:47,764 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-20 07:48:47,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:48:47,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-20 07:48:47,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2019-11-20 07:48:47,765 INFO L87 Difference]: Start difference. First operand 78 states and 99 transitions. Second operand 14 states. [2019-11-20 07:48:48,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:48:48,229 INFO L93 Difference]: Finished difference Result 191 states and 250 transitions. [2019-11-20 07:48:48,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 07:48:48,230 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 32 [2019-11-20 07:48:48,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:48:48,232 INFO L225 Difference]: With dead ends: 191 [2019-11-20 07:48:48,232 INFO L226 Difference]: Without dead ends: 120 [2019-11-20 07:48:48,236 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2019-11-20 07:48:48,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-11-20 07:48:48,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 78. [2019-11-20 07:48:48,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-20 07:48:48,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 91 transitions. [2019-11-20 07:48:48,269 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 91 transitions. Word has length 32 [2019-11-20 07:48:48,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:48:48,270 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 91 transitions. [2019-11-20 07:48:48,270 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-20 07:48:48,271 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 91 transitions. [2019-11-20 07:48:48,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-11-20 07:48:48,278 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:48:48,278 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-20 07:48:48,484 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:48:48,484 INFO L410 AbstractCegarLoop]: === Iteration 8 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 07:48:48,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:48:48,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1488102097, now seen corresponding path program 1 times [2019-11-20 07:48:48,485 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:48:48,486 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255709408] [2019-11-20 07:48:48,486 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:48:48,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:48,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:48,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:48,602 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-11-20 07:48:48,602 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255709408] [2019-11-20 07:48:48,603 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [33373371] [2019-11-20 07:48:48,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:48:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:48,643 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-20 07:48:48,645 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:48:48,684 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-20 07:48:48,685 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-11-20 07:48:48,685 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2019-11-20 07:48:48,685 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392936984] [2019-11-20 07:48:48,686 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-20 07:48:48,686 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:48:48,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-20 07:48:48,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2019-11-20 07:48:48,687 INFO L87 Difference]: Start difference. First operand 78 states and 91 transitions. Second operand 5 states. [2019-11-20 07:48:48,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:48:48,787 INFO L93 Difference]: Finished difference Result 153 states and 183 transitions. [2019-11-20 07:48:48,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-20 07:48:48,788 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 24 [2019-11-20 07:48:48,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:48:48,790 INFO L225 Difference]: With dead ends: 153 [2019-11-20 07:48:48,790 INFO L226 Difference]: Without dead ends: 78 [2019-11-20 07:48:48,793 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2019-11-20 07:48:48,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2019-11-20 07:48:48,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2019-11-20 07:48:48,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2019-11-20 07:48:48,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 89 transitions. [2019-11-20 07:48:48,804 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 89 transitions. Word has length 24 [2019-11-20 07:48:48,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:48:48,804 INFO L462 AbstractCegarLoop]: Abstraction has 78 states and 89 transitions. [2019-11-20 07:48:48,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-20 07:48:48,805 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 89 transitions. [2019-11-20 07:48:48,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-11-20 07:48:48,809 INFO L402 BasicCegarLoop]: Found error trace [2019-11-20 07:48:48,809 INFO L410 BasicCegarLoop]: trace histogram [8, 6, 6, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2019-11-20 07:48:49,020 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:48:49,021 INFO L410 AbstractCegarLoop]: === Iteration 9 === [fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-11-20 07:48:49,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-20 07:48:49,022 INFO L82 PathProgramCache]: Analyzing trace with hash 627143089, now seen corresponding path program 1 times [2019-11-20 07:48:49,022 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-20 07:48:49,022 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598790351] [2019-11-20 07:48:49,022 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-20 07:48:49,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:49,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:49,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:49,362 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 61 proven. 16 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2019-11-20 07:48:49,363 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598790351] [2019-11-20 07:48:49,363 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [391004373] [2019-11-20 07:48:49,363 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:48:49,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-20 07:48:49,434 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 6 conjunts are in the unsatisfiable core [2019-11-20 07:48:49,440 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-20 07:48:49,618 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 53 proven. 3 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-11-20 07:48:49,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-11-20 07:48:49,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 7] total 19 [2019-11-20 07:48:49,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35575568] [2019-11-20 07:48:49,620 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-11-20 07:48:49,620 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-20 07:48:49,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-11-20 07:48:49,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2019-11-20 07:48:49,622 INFO L87 Difference]: Start difference. First operand 78 states and 89 transitions. Second operand 19 states. [2019-11-20 07:48:50,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-20 07:48:50,058 INFO L93 Difference]: Finished difference Result 119 states and 137 transitions. [2019-11-20 07:48:50,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-11-20 07:48:50,059 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 94 [2019-11-20 07:48:50,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-20 07:48:50,060 INFO L225 Difference]: With dead ends: 119 [2019-11-20 07:48:50,060 INFO L226 Difference]: Without dead ends: 0 [2019-11-20 07:48:50,062 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=562, Unknown=0, NotChecked=0, Total=650 [2019-11-20 07:48:50,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-20 07:48:50,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-20 07:48:50,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-20 07:48:50,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-20 07:48:50,063 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 94 [2019-11-20 07:48:50,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-20 07:48:50,064 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-20 07:48:50,064 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-11-20 07:48:50,064 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-20 07:48:50,064 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-20 07:48:50,267 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-20 07:48:50,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-20 07:48:50,514 INFO L444 ceAbstractionStarter]: For program point fFINAL(lines 11 15) no Hoare annotation was computed. [2019-11-20 07:48:50,514 INFO L440 ceAbstractionStarter]: At program point L14(line 14) the Hoare annotation is: (or (and (<= 1 f_~x) (= |f_#in~x| f_~x)) (not (<= |f_#in~x| 2147483646))) [2019-11-20 07:48:50,514 INFO L444 ceAbstractionStarter]: For program point L13(lines 13 14) no Hoare annotation was computed. [2019-11-20 07:48:50,515 INFO L444 ceAbstractionStarter]: For program point L14-1(line 14) no Hoare annotation was computed. [2019-11-20 07:48:50,515 INFO L444 ceAbstractionStarter]: For program point L14-2(line 14) no Hoare annotation was computed. [2019-11-20 07:48:50,515 INFO L444 ceAbstractionStarter]: For program point L14-3(line 14) no Hoare annotation was computed. [2019-11-20 07:48:50,515 INFO L440 ceAbstractionStarter]: At program point L14-4(line 14) the Hoare annotation is: (or (and (<= (+ |f_#t~ret0| 1) f_~x) (<= 1 f_~x) (= |f_#in~x| f_~x)) (not (<= |f_#in~x| 2147483646))) [2019-11-20 07:48:50,515 INFO L444 ceAbstractionStarter]: For program point L14-5(line 14) no Hoare annotation was computed. [2019-11-20 07:48:50,515 INFO L444 ceAbstractionStarter]: For program point fErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-11-20 07:48:50,515 INFO L444 ceAbstractionStarter]: For program point fErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-11-20 07:48:50,516 INFO L444 ceAbstractionStarter]: For program point L14-6(line 14) no Hoare annotation was computed. [2019-11-20 07:48:50,516 INFO L444 ceAbstractionStarter]: For program point fEXIT(lines 11 15) no Hoare annotation was computed. [2019-11-20 07:48:50,516 INFO L444 ceAbstractionStarter]: For program point L14-7(line 14) no Hoare annotation was computed. [2019-11-20 07:48:50,516 INFO L447 ceAbstractionStarter]: At program point fENTRY(lines 11 15) the Hoare annotation is: true [2019-11-20 07:48:50,516 INFO L444 ceAbstractionStarter]: For program point fErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-11-20 07:48:50,516 INFO L444 ceAbstractionStarter]: For program point fErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 14) no Hoare annotation was computed. [2019-11-20 07:48:50,516 INFO L444 ceAbstractionStarter]: For program point gFINAL(lines 17 21) no Hoare annotation was computed. [2019-11-20 07:48:50,516 INFO L444 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2019-11-20 07:48:50,517 INFO L444 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2019-11-20 07:48:50,517 INFO L444 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2019-11-20 07:48:50,517 INFO L440 ceAbstractionStarter]: At program point L20-2(line 20) the Hoare annotation is: (and (or (= |g_#in~x| g_~x) (not (<= |g_#in~x| 2147483647))) (or (<= 1 g_~x) (not (<= |g_#in~x| 2147483646)))) [2019-11-20 07:48:50,517 INFO L444 ceAbstractionStarter]: For program point L20-3(line 20) no Hoare annotation was computed. [2019-11-20 07:48:50,517 INFO L444 ceAbstractionStarter]: For program point L20-4(line 20) no Hoare annotation was computed. [2019-11-20 07:48:50,517 INFO L444 ceAbstractionStarter]: For program point L20-5(line 20) no Hoare annotation was computed. [2019-11-20 07:48:50,517 INFO L440 ceAbstractionStarter]: At program point L20-6(line 20) the Hoare annotation is: (and (or (<= |g_#in~x| 1) (not (<= |g_#in~x| 2147483647))) (or (and (<= 0 |g_#t~ret2|) (<= 1 g_~x) (<= |g_#t~ret2| 0) (= |g_#in~x| g_~x)) (not (<= |g_#in~x| 2147483646)))) [2019-11-20 07:48:50,517 INFO L444 ceAbstractionStarter]: For program point L20-7(line 20) no Hoare annotation was computed. [2019-11-20 07:48:50,518 INFO L444 ceAbstractionStarter]: For program point L20-8(line 20) no Hoare annotation was computed. [2019-11-20 07:48:50,518 INFO L444 ceAbstractionStarter]: For program point L20-9(line 20) no Hoare annotation was computed. [2019-11-20 07:48:50,518 INFO L444 ceAbstractionStarter]: For program point gErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-20 07:48:50,518 INFO L444 ceAbstractionStarter]: For program point gEXIT(lines 17 21) no Hoare annotation was computed. [2019-11-20 07:48:50,518 INFO L444 ceAbstractionStarter]: For program point gErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-20 07:48:50,518 INFO L447 ceAbstractionStarter]: At program point gENTRY(lines 17 21) the Hoare annotation is: true [2019-11-20 07:48:50,518 INFO L444 ceAbstractionStarter]: For program point gErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-20 07:48:50,518 INFO L444 ceAbstractionStarter]: For program point gErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-20 07:48:50,518 INFO L444 ceAbstractionStarter]: For program point gErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-20 07:48:50,518 INFO L444 ceAbstractionStarter]: For program point gErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2019-11-20 07:48:50,518 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-20 07:48:50,519 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-20 07:48:50,519 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-20 07:48:50,519 INFO L440 ceAbstractionStarter]: At program point L26(line 26) the Hoare annotation is: (<= ULTIMATE.start_main_~x~0 2147483647) [2019-11-20 07:48:50,519 INFO L444 ceAbstractionStarter]: For program point L26-1(line 26) no Hoare annotation was computed. [2019-11-20 07:48:50,519 INFO L444 ceAbstractionStarter]: For program point L24(lines 24 27) no Hoare annotation was computed. [2019-11-20 07:48:50,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:48:50 BoogieIcfgContainer [2019-11-20 07:48:50,522 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-20 07:48:50,523 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-20 07:48:50,523 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-20 07:48:50,523 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-20 07:48:50,523 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:48:45" (3/4) ... [2019-11-20 07:48:50,528 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-20 07:48:50,534 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure f [2019-11-20 07:48:50,534 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure g [2019-11-20 07:48:50,540 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-20 07:48:50,540 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-20 07:48:50,592 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6ca8b03b-e86d-4de8-899b-c40c11350a22/bin/uautomizer/witness.graphml [2019-11-20 07:48:50,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-20 07:48:50,594 INFO L168 Benchmark]: Toolchain (without parser) took 5566.87 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 229.6 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -173.6 MB). Peak memory consumption was 56.0 MB. Max. memory is 11.5 GB. [2019-11-20 07:48:50,595 INFO L168 Benchmark]: CDTParser took 1.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:48:50,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -217.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-20 07:48:50,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-20 07:48:50,596 INFO L168 Benchmark]: Boogie Preprocessor took 21.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-11-20 07:48:50,597 INFO L168 Benchmark]: RCFGBuilder took 311.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. [2019-11-20 07:48:50,598 INFO L168 Benchmark]: TraceAbstraction took 4746.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 73.3 MB. Max. memory is 11.5 GB. [2019-11-20 07:48:50,598 INFO L168 Benchmark]: Witness Printer took 69.56 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 11.5 GB. [2019-11-20 07:48:50,601 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.29 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 376.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 172.5 MB). Free memory was 950.1 MB in the beginning and 1.2 GB in the end (delta: -217.7 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.41 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 311.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4746.17 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 57.1 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 16.1 MB). Peak memory consumption was 73.3 MB. Max. memory is 11.5 GB. * Witness Printer took 69.56 ms. Allocated memory is still 1.3 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 10 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 10 error locations. Result: SAFE, OverallTime: 4.6s, OverallIterations: 9, TraceHistogramMax: 8, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 273 SDtfs, 294 SDslu, 819 SDs, 0 SdLazy, 770 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 261 GetRequests, 183 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 81 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 109 PreInvPairs, 115 NumberOfFragments, 78 HoareAnnotationTreeSize, 109 FomulaSimplifications, 69 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 159 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 384 NumberOfCodeBlocks, 384 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 372 ConstructedInterpolants, 0 QuantifiedInterpolants, 43667 SizeOfPredicates, 8 NumberOfNonLiveVariables, 309 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 12 InterpolantComputations, 7 PerfectInterpolantSequences, 360/385 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...