./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/bin-2019/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 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 12:38:07,767 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 12:38:07,768 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 12:38:07,775 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 12:38:07,776 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 12:38:07,776 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 12:38:07,777 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 12:38:07,778 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 12:38:07,779 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 12:38:07,780 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 12:38:07,781 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 12:38:07,781 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 12:38:07,781 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 12:38:07,782 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 12:38:07,783 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 12:38:07,784 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 12:38:07,784 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 12:38:07,785 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 12:38:07,787 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 12:38:07,788 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 12:38:07,788 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 12:38:07,789 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 12:38:07,791 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 12:38:07,791 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 12:38:07,791 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 12:38:07,792 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 12:38:07,793 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 12:38:07,793 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 12:38:07,794 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 12:38:07,795 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 12:38:07,795 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 12:38:07,795 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 12:38:07,795 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 12:38:07,796 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 12:38:07,796 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 12:38:07,797 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 12:38:07,797 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-18 12:38:07,807 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 12:38:07,807 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 12:38:07,808 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 12:38:07,808 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 12:38:07,808 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 12:38:07,808 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 12:38:07,808 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 12:38:07,809 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 12:38:07,809 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 12:38:07,809 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 12:38:07,809 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 12:38:07,809 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 12:38:07,809 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 12:38:07,809 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 12:38:07,809 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 12:38:07,809 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 12:38:07,809 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 12:38:07,810 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 12:38:07,810 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 12:38:07,810 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 12:38:07,810 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 12:38:07,810 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 12:38:07,810 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 12:38:07,810 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 12:38:07,810 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 12:38:07,811 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 12:38:07,811 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 12:38:07,811 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 12:38:07,811 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 12:38:07,811 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/bin-2019/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 -> 4f5dfa3dfde4da491a923b915452cddcc4ed5c87 [2018-11-18 12:38:07,835 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 12:38:07,845 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 12:38:07,848 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 12:38:07,849 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 12:38:07,849 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 12:38:07,850 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c [2018-11-18 12:38:07,895 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/bin-2019/uautomizer/data/13ed4e0db/fbfa4e754f374612a30d1556ee4b3d19/FLAG56527f9ae [2018-11-18 12:38:08,233 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 12:38:08,233 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c [2018-11-18 12:38:08,239 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/bin-2019/uautomizer/data/13ed4e0db/fbfa4e754f374612a30d1556ee4b3d19/FLAG56527f9ae [2018-11-18 12:38:08,652 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/bin-2019/uautomizer/data/13ed4e0db/fbfa4e754f374612a30d1556ee4b3d19 [2018-11-18 12:38:08,655 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 12:38:08,655 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 12:38:08,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 12:38:08,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 12:38:08,659 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 12:38:08,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:38:08" (1/1) ... [2018-11-18 12:38:08,662 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5efa4a5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:38:08, skipping insertion in model container [2018-11-18 12:38:08,662 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 12:38:08" (1/1) ... [2018-11-18 12:38:08,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 12:38:08,680 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 12:38:08,783 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:38:08,785 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 12:38:08,794 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 12:38:08,802 INFO L195 MainTranslator]: Completed translation [2018-11-18 12:38:08,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:38:08 WrapperNode [2018-11-18 12:38:08,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 12:38:08,802 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 12:38:08,802 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 12:38:08,802 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 12:38:08,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:38:08" (1/1) ... [2018-11-18 12:38:08,811 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:38:08" (1/1) ... [2018-11-18 12:38:08,814 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:38:08" (1/1) ... [2018-11-18 12:38:08,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:38:08" (1/1) ... [2018-11-18 12:38:08,817 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:38:08" (1/1) ... [2018-11-18 12:38:08,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:38:08" (1/1) ... [2018-11-18 12:38:08,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:38:08" (1/1) ... [2018-11-18 12:38:08,821 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 12:38:08,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 12:38:08,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 12:38:08,821 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 12:38:08,821 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:38:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/bin-2019/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 [2018-11-18 12:38:08,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 12:38:08,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 12:38:08,890 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 12:38:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-18 12:38:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 12:38:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 12:38:08,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 12:38:08,980 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 12:38:08,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:38:08 BoogieIcfgContainer [2018-11-18 12:38:08,981 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 12:38:08,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 12:38:08,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 12:38:08,983 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 12:38:08,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 12:38:08" (1/3) ... [2018-11-18 12:38:08,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225dda48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:38:08, skipping insertion in model container [2018-11-18 12:38:08,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 12:38:08" (2/3) ... [2018-11-18 12:38:08,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225dda48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 12:38:08, skipping insertion in model container [2018-11-18 12:38:08,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:38:08" (3/3) ... [2018-11-18 12:38:08,986 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-wcet2_true-termination_true-no-overflow.c [2018-11-18 12:38:08,991 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 12:38:08,997 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 12:38:09,005 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 12:38:09,025 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 12:38:09,025 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 12:38:09,025 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 12:38:09,025 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 12:38:09,025 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 12:38:09,026 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 12:38:09,026 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 12:38:09,026 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 12:38:09,026 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 12:38:09,037 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-18 12:38:09,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 12:38:09,041 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:38:09,042 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:38:09,044 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 12:38:09,048 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:38:09,049 INFO L82 PathProgramCache]: Analyzing trace with hash -1432253197, now seen corresponding path program 1 times [2018-11-18 12:38:09,050 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:38:09,051 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:38:09,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:38:09,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:38:09,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:38:09,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:38:09,129 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:38:09,131 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:38:09,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:38:09,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 12:38:09,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 12:38:09,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:38:09,142 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 2 states. [2018-11-18 12:38:09,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:38:09,155 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2018-11-18 12:38:09,155 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 12:38:09,156 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2018-11-18 12:38:09,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:38:09,164 INFO L225 Difference]: With dead ends: 39 [2018-11-18 12:38:09,165 INFO L226 Difference]: Without dead ends: 17 [2018-11-18 12:38:09,167 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 12:38:09,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-18 12:38:09,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-18 12:38:09,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 12:38:09,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-11-18 12:38:09,189 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 9 [2018-11-18 12:38:09,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:38:09,190 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-11-18 12:38:09,190 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 12:38:09,190 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-11-18 12:38:09,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 12:38:09,190 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:38:09,190 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:38:09,190 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 12:38:09,191 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:38:09,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1450187957, now seen corresponding path program 1 times [2018-11-18 12:38:09,191 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:38:09,191 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:38:09,192 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:38:09,192 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:38:09,193 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:38:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:38:09,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:38:09,222 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:38:09,222 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:38:09,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:38:09,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:38:09,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:38:09,224 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 3 states. [2018-11-18 12:38:09,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:38:09,261 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-11-18 12:38:09,261 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:38:09,262 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 12:38:09,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:38:09,262 INFO L225 Difference]: With dead ends: 17 [2018-11-18 12:38:09,262 INFO L226 Difference]: Without dead ends: 16 [2018-11-18 12:38:09,263 INFO L604 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 [2018-11-18 12:38:09,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-18 12:38:09,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 12:38:09,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 12:38:09,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-18 12:38:09,265 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 10 [2018-11-18 12:38:09,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:38:09,265 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-18 12:38:09,265 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:38:09,265 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-18 12:38:09,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 12:38:09,266 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:38:09,266 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:38:09,266 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 12:38:09,266 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:38:09,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1450187902, now seen corresponding path program 1 times [2018-11-18 12:38:09,266 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:38:09,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:38:09,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:38:09,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:38:09,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:38:09,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:38:09,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:38:09,294 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:38:09,294 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:38:09,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:38:09,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:38:09,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:38:09,295 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2018-11-18 12:38:09,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:38:09,320 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2018-11-18 12:38:09,321 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:38:09,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 12:38:09,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:38:09,321 INFO L225 Difference]: With dead ends: 26 [2018-11-18 12:38:09,321 INFO L226 Difference]: Without dead ends: 25 [2018-11-18 12:38:09,322 INFO L604 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 [2018-11-18 12:38:09,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-18 12:38:09,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2018-11-18 12:38:09,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 12:38:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-18 12:38:09,324 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 10 [2018-11-18 12:38:09,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:38:09,325 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-18 12:38:09,325 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:38:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-18 12:38:09,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 12:38:09,325 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:38:09,325 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:38:09,325 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 12:38:09,326 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:38:09,326 INFO L82 PathProgramCache]: Analyzing trace with hash -2006153642, now seen corresponding path program 1 times [2018-11-18 12:38:09,326 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:38:09,326 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:38:09,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:38:09,327 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:38:09,327 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:38:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:38:09,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:38:09,352 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:38:09,352 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:38:09,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:38:09,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:38:09,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:38:09,353 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-18 12:38:09,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:38:09,369 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-18 12:38:09,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:38:09,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 12:38:09,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:38:09,370 INFO L225 Difference]: With dead ends: 19 [2018-11-18 12:38:09,370 INFO L226 Difference]: Without dead ends: 18 [2018-11-18 12:38:09,370 INFO L604 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 [2018-11-18 12:38:09,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-18 12:38:09,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-18 12:38:09,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 12:38:09,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-18 12:38:09,373 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11 [2018-11-18 12:38:09,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:38:09,373 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-18 12:38:09,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:38:09,374 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-18 12:38:09,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 12:38:09,374 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:38:09,374 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:38:09,374 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 12:38:09,375 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:38:09,375 INFO L82 PathProgramCache]: Analyzing trace with hash -2006151944, now seen corresponding path program 1 times [2018-11-18 12:38:09,375 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:38:09,375 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:38:09,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:38:09,376 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:38:09,376 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:38:09,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:38:09,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 12:38:09,390 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:38:09,390 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:38:09,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:38:09,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:38:09,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:38:09,391 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-11-18 12:38:09,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:38:09,400 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2018-11-18 12:38:09,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:38:09,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 12:38:09,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:38:09,401 INFO L225 Difference]: With dead ends: 20 [2018-11-18 12:38:09,401 INFO L226 Difference]: Without dead ends: 19 [2018-11-18 12:38:09,401 INFO L604 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 [2018-11-18 12:38:09,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-18 12:38:09,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2018-11-18 12:38:09,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-18 12:38:09,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-11-18 12:38:09,403 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2018-11-18 12:38:09,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:38:09,404 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-18 12:38:09,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:38:09,404 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-18 12:38:09,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 12:38:09,404 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 12:38:09,404 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 12:38:09,404 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 12:38:09,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 12:38:09,405 INFO L82 PathProgramCache]: Analyzing trace with hash -802592006, now seen corresponding path program 1 times [2018-11-18 12:38:09,405 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 12:38:09,405 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 12:38:09,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:38:09,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 12:38:09,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 12:38:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 12:38:09,418 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-18 12:38:09,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 12:38:09,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 12:38:09,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 12:38:09,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 12:38:09,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 12:38:09,419 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-11-18 12:38:09,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 12:38:09,430 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-11-18 12:38:09,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 12:38:09,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 14 [2018-11-18 12:38:09,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 12:38:09,430 INFO L225 Difference]: With dead ends: 21 [2018-11-18 12:38:09,430 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 12:38:09,431 INFO L604 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 [2018-11-18 12:38:09,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 12:38:09,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 12:38:09,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 12:38:09,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 12:38:09,432 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-18 12:38:09,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 12:38:09,432 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 12:38:09,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 12:38:09,432 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 12:38:09,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 12:38:09,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 12:38:09,464 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 12:38:09,465 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:38:09,465 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 12:38:09,465 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 12:38:09,465 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 12:38:09,465 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 12:38:09,465 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-18 12:38:09,465 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 25) no Hoare annotation was computed. [2018-11-18 12:38:09,465 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-18 12:38:09,466 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 21) no Hoare annotation was computed. [2018-11-18 12:38:09,466 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 23) no Hoare annotation was computed. [2018-11-18 12:38:09,466 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 21) the Hoare annotation is: (and (<= 0 main_~j~0) (<= 0 (+ main_~i~0 2147483648)) (<= main_~i~0 4)) [2018-11-18 12:38:09,466 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 21) no Hoare annotation was computed. [2018-11-18 12:38:09,466 INFO L421 ceAbstractionStarter]: At program point L17-3(lines 17 23) the Hoare annotation is: (<= 0 (+ main_~i~0 2147483648)) [2018-11-18 12:38:09,466 INFO L425 ceAbstractionStarter]: For program point L17-4(lines 17 23) no Hoare annotation was computed. [2018-11-18 12:38:09,466 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 25) no Hoare annotation was computed. [2018-11-18 12:38:09,466 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 25) the Hoare annotation is: true [2018-11-18 12:38:09,467 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-18 12:38:09,467 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-18 12:38:09,467 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 12:38:09,467 INFO L425 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-18 12:38:09,467 INFO L425 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-18 12:38:09,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 12:38:09 BoogieIcfgContainer [2018-11-18 12:38:09,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 12:38:09,477 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 12:38:09,477 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 12:38:09,477 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 12:38:09,478 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 12:38:08" (3/4) ... [2018-11-18 12:38:09,480 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 12:38:09,484 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 12:38:09,485 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 12:38:09,487 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 12:38:09,487 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 12:38:09,487 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 12:38:09,513 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_23e6f577-5d66-4e3f-a8af-4f1c7d600021/bin-2019/uautomizer/witness.graphml [2018-11-18 12:38:09,513 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 12:38:09,514 INFO L168 Benchmark]: Toolchain (without parser) took 858.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 959.2 MB in the beginning and 1.1 GB in the end (delta: -106.5 MB). Peak memory consumption was 28.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:38:09,515 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 12:38:09,515 INFO L168 Benchmark]: CACSL2BoogieTranslator took 146.11 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:38:09,515 INFO L168 Benchmark]: Boogie Preprocessor took 18.30 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:38:09,516 INFO L168 Benchmark]: RCFGBuilder took 160.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -177.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. [2018-11-18 12:38:09,516 INFO L168 Benchmark]: TraceAbstraction took 495.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.8 MB). Peak memory consumption was 54.8 MB. Max. memory is 11.5 GB. [2018-11-18 12:38:09,516 INFO L168 Benchmark]: Witness Printer took 36.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 12:38:09,519 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 146.11 ms. Allocated memory is still 1.0 GB. Free memory was 959.2 MB in the beginning and 948.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 18.30 ms. Allocated memory is still 1.0 GB. Free memory was 948.5 MB in the beginning and 945.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 160.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -177.4 MB). Peak memory consumption was 19.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 495.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 54.8 MB). Peak memory consumption was 54.8 MB. Max. memory is 11.5 GB. * Witness Printer took 36.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: 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 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= i + 2147483648 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (0 <= j && 0 <= i + 2147483648) && i <= 4 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 4 error locations. SAFE Result, 0.4s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 84 SDtfs, 30 SDslu, 31 SDs, 0 SdLazy, 36 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 10 NumberOfFragments, 21 HoareAnnotationTreeSize, 6 FomulaSimplifications, 48 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 1049 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...