./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-new/count_by_1_variant_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-new/count_by_1_variant_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2c35b63020039b8235bc0a118d8fbb9fe59d3a09 ...................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-03 07:06:58,005 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 07:06:58,006 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 07:06:58,013 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 07:06:58,014 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 07:06:58,014 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 07:06:58,015 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 07:06:58,015 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 07:06:58,016 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 07:06:58,017 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 07:06:58,017 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 07:06:58,018 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 07:06:58,018 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 07:06:58,019 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 07:06:58,020 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 07:06:58,020 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 07:06:58,021 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 07:06:58,022 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 07:06:58,023 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 07:06:58,024 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 07:06:58,025 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 07:06:58,026 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 07:06:58,027 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 07:06:58,027 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 07:06:58,028 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 07:06:58,028 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 07:06:58,029 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 07:06:58,029 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 07:06:58,029 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 07:06:58,030 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 07:06:58,030 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 07:06:58,031 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 07:06:58,031 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 07:06:58,031 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 07:06:58,032 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 07:06:58,032 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 07:06:58,032 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-03 07:06:58,040 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 07:06:58,040 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 07:06:58,040 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 07:06:58,041 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 07:06:58,041 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 07:06:58,041 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 07:06:58,041 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 07:06:58,041 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 07:06:58,041 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 07:06:58,042 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 07:06:58,042 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 07:06:58,042 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 07:06:58,042 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 07:06:58,043 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 07:06:58,043 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-03 07:06:58,043 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 07:06:58,043 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-03 07:06:58,043 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 07:06:58,043 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 07:06:58,043 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 07:06:58,044 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 07:06:58,044 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-03 07:06:58,044 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 07:06:58,044 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 07:06:58,044 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 07:06:58,044 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 07:06:58,045 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 07:06:58,045 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 07:06:58,045 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:06:58,045 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 07:06:58,045 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 07:06:58,045 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 07:06:58,045 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 07:06:58,045 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 07:06:58,045 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 07:06:58,046 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 07:06:58,046 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c35b63020039b8235bc0a118d8fbb9fe59d3a09 [2018-12-03 07:06:58,063 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 07:06:58,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 07:06:58,072 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 07:06:58,073 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 07:06:58,074 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 07:06:58,074 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan/../../sv-benchmarks/c/loop-new/count_by_1_variant_true-unreach-call_true-termination.i [2018-12-03 07:06:58,110 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan/data/47d0279fc/7733734995d247eb8a42ab56f6e5ea2a/FLAG476ae1157 [2018-12-03 07:06:58,524 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 07:06:58,524 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/sv-benchmarks/c/loop-new/count_by_1_variant_true-unreach-call_true-termination.i [2018-12-03 07:06:58,528 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan/data/47d0279fc/7733734995d247eb8a42ab56f6e5ea2a/FLAG476ae1157 [2018-12-03 07:06:58,536 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan/data/47d0279fc/7733734995d247eb8a42ab56f6e5ea2a [2018-12-03 07:06:58,538 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 07:06:58,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 07:06:58,539 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 07:06:58,539 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 07:06:58,541 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 07:06:58,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:06:58" (1/1) ... [2018-12-03 07:06:58,543 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@134af73b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:06:58, skipping insertion in model container [2018-12-03 07:06:58,543 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:06:58" (1/1) ... [2018-12-03 07:06:58,547 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 07:06:58,555 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 07:06:58,636 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:06:58,638 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 07:06:58,646 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:06:58,654 INFO L195 MainTranslator]: Completed translation [2018-12-03 07:06:58,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:06:58 WrapperNode [2018-12-03 07:06:58,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 07:06:58,655 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 07:06:58,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 07:06:58,655 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 07:06:58,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:06:58" (1/1) ... [2018-12-03 07:06:58,662 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:06:58" (1/1) ... [2018-12-03 07:06:58,666 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 07:06:58,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 07:06:58,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 07:06:58,666 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 07:06:58,671 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:06:58" (1/1) ... [2018-12-03 07:06:58,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:06:58" (1/1) ... [2018-12-03 07:06:58,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:06:58" (1/1) ... [2018-12-03 07:06:58,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:06:58" (1/1) ... [2018-12-03 07:06:58,673 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:06:58" (1/1) ... [2018-12-03 07:06:58,676 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:06:58" (1/1) ... [2018-12-03 07:06:58,676 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:06:58" (1/1) ... [2018-12-03 07:06:58,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 07:06:58,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 07:06:58,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 07:06:58,678 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 07:06:58,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:06:58" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:06:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 07:06:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 07:06:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 07:06:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 07:06:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 07:06:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 07:06:58,736 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-03 07:06:58,736 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-03 07:06:58,807 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 07:06:58,808 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 07:06:58,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:06:58 BoogieIcfgContainer [2018-12-03 07:06:58,808 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 07:06:58,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 07:06:58,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 07:06:58,810 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 07:06:58,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 07:06:58" (1/3) ... [2018-12-03 07:06:58,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42528865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:06:58, skipping insertion in model container [2018-12-03 07:06:58,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:06:58" (2/3) ... [2018-12-03 07:06:58,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42528865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:06:58, skipping insertion in model container [2018-12-03 07:06:58,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:06:58" (3/3) ... [2018-12-03 07:06:58,812 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_variant_true-unreach-call_true-termination.i [2018-12-03 07:06:58,817 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 07:06:58,821 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-03 07:06:58,830 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-03 07:06:58,847 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 07:06:58,847 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 07:06:58,847 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 07:06:58,847 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 07:06:58,847 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 07:06:58,847 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 07:06:58,847 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 07:06:58,847 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 07:06:58,857 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-12-03 07:06:58,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-03 07:06:58,860 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:06:58,861 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:06:58,862 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:06:58,865 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:06:58,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1875203651, now seen corresponding path program 1 times [2018-12-03 07:06:58,866 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:06:58,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:06:58,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:06:58,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:06:58,894 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:06:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:06:58,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:06:58,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:06:58,957 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-12-03 07:06:58,957 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:06:58,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-03 07:06:58,967 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-03 07:06:58,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-03 07:06:58,969 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 5 states. [2018-12-03 07:06:59,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:06:59,026 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2018-12-03 07:06:59,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-03 07:06:59,027 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-12-03 07:06:59,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:06:59,032 INFO L225 Difference]: With dead ends: 40 [2018-12-03 07:06:59,032 INFO L226 Difference]: Without dead ends: 21 [2018-12-03 07:06:59,034 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-12-03 07:06:59,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-12-03 07:06:59,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2018-12-03 07:06:59,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-03 07:06:59,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2018-12-03 07:06:59,057 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 10 [2018-12-03 07:06:59,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:06:59,058 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2018-12-03 07:06:59,058 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-03 07:06:59,058 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2018-12-03 07:06:59,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-12-03 07:06:59,058 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:06:59,058 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:06:59,059 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:06:59,059 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:06:59,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1632080392, now seen corresponding path program 1 times [2018-12-03 07:06:59,059 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:06:59,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:06:59,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:06:59,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:06:59,060 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:06:59,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:06:59,110 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:06:59,110 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:06:59,110 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:06:59,110 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2018-12-03 07:06:59,111 INFO L205 CegarAbsIntRunner]: [0], [4], [12], [15], [21], [24], [26], [29], [31], [32], [33], [34], [36], [37] [2018-12-03 07:06:59,130 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-03 07:06:59,130 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-03 07:06:59,217 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-03 07:06:59,217 INFO L272 AbstractInterpreter]: Visited 14 different actions 41 times. Merged at 3 different actions 9 times. Never widened. Performed 62 root evaluator evaluations with a maximum evaluation depth of 3. Performed 62 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-12-03 07:06:59,222 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:06:59,223 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-03 07:06:59,223 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:06:59,223 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 07:06:59,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:06:59,229 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-03 07:06:59,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:06:59,244 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:06:59,281 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:06:59,281 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:06:59,320 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:06:59,335 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:06:59,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 11 [2018-12-03 07:06:59,335 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:06:59,336 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-03 07:06:59,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-03 07:06:59,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-12-03 07:06:59,336 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 9 states. [2018-12-03 07:06:59,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:06:59,391 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2018-12-03 07:06:59,391 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-03 07:06:59,392 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 17 [2018-12-03 07:06:59,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:06:59,392 INFO L225 Difference]: With dead ends: 30 [2018-12-03 07:06:59,392 INFO L226 Difference]: Without dead ends: 28 [2018-12-03 07:06:59,393 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-12-03 07:06:59,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-12-03 07:06:59,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2018-12-03 07:06:59,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-12-03 07:06:59,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2018-12-03 07:06:59,398 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 17 [2018-12-03 07:06:59,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:06:59,398 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2018-12-03 07:06:59,398 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-03 07:06:59,398 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2018-12-03 07:06:59,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-03 07:06:59,399 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:06:59,399 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:06:59,399 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-03 07:06:59,399 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:06:59,399 INFO L82 PathProgramCache]: Analyzing trace with hash 282820957, now seen corresponding path program 2 times [2018-12-03 07:06:59,400 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:06:59,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:06:59,400 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:06:59,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:06:59,401 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:06:59,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:06:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-03 07:06:59,461 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:06:59,461 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-03 07:06:59,462 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-03 07:06:59,462 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-03 07:06:59,462 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-03 07:06:59,462 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-03 07:06:59,468 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-03 07:06:59,468 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-03 07:06:59,477 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2018-12-03 07:06:59,477 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-03 07:06:59,478 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-03 07:06:59,502 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-03 07:06:59,502 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-03 07:06:59,527 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-03 07:06:59,541 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-03 07:06:59,541 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 14 [2018-12-03 07:06:59,541 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-03 07:06:59,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-12-03 07:06:59,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-12-03 07:06:59,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-12-03 07:06:59,542 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand 13 states. [2018-12-03 07:06:59,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:06:59,582 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2018-12-03 07:06:59,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-03 07:06:59,583 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 24 [2018-12-03 07:06:59,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:06:59,583 INFO L225 Difference]: With dead ends: 32 [2018-12-03 07:06:59,583 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 07:06:59,583 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2018-12-03 07:06:59,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 07:06:59,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 07:06:59,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 07:06:59,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 07:06:59,584 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-12-03 07:06:59,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:06:59,584 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 07:06:59,584 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-12-03 07:06:59,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 07:06:59,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 07:06:59,587 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 07:06:59,610 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-03 07:06:59,610 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:06:59,610 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:06:59,610 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-03 07:06:59,610 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 07:06:59,610 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 07:06:59,611 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 16) the Hoare annotation is: true [2018-12-03 07:06:59,611 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 16) no Hoare annotation was computed. [2018-12-03 07:06:59,611 INFO L444 ceAbstractionStarter]: At program point L13(line 13) the Hoare annotation is: (<= main_~i~0 999999) [2018-12-03 07:06:59,611 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 16) no Hoare annotation was computed. [2018-12-03 07:06:59,611 INFO L448 ceAbstractionStarter]: For program point L13-1(lines 12 14) no Hoare annotation was computed. [2018-12-03 07:06:59,611 INFO L444 ceAbstractionStarter]: At program point L12-2(lines 12 14) the Hoare annotation is: (<= main_~i~0 1000000) [2018-12-03 07:06:59,611 INFO L448 ceAbstractionStarter]: For program point L12-3(lines 12 14) no Hoare annotation was computed. [2018-12-03 07:06:59,611 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-12-03 07:06:59,611 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-03 07:06:59,611 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-12-03 07:06:59,611 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-03 07:06:59,611 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-12-03 07:06:59,611 INFO L448 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-12-03 07:06:59,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 07:06:59 BoogieIcfgContainer [2018-12-03 07:06:59,618 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 07:06:59,618 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 07:06:59,618 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 07:06:59,619 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 07:06:59,619 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:06:58" (3/4) ... [2018-12-03 07:06:59,621 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 07:06:59,624 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 07:06:59,625 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 07:06:59,625 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-03 07:06:59,627 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-12-03 07:06:59,628 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-03 07:06:59,628 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 07:06:59,650 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f3d83e3e-19f4-4dc9-8d24-e7d8a449ebc7/bin-2019/utaipan/witness.graphml [2018-12-03 07:06:59,651 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 07:06:59,651 INFO L168 Benchmark]: Toolchain (without parser) took 1113.24 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 952.4 MB in the beginning and 955.5 MB in the end (delta: -3.1 MB). Peak memory consumption was 106.0 MB. Max. memory is 11.5 GB. [2018-12-03 07:06:59,652 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:06:59,652 INFO L168 Benchmark]: CACSL2BoogieTranslator took 115.60 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 940.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-03 07:06:59,653 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.02 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:06:59,653 INFO L168 Benchmark]: Boogie Preprocessor took 11.33 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:06:59,653 INFO L168 Benchmark]: RCFGBuilder took 130.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-03 07:06:59,653 INFO L168 Benchmark]: TraceAbstraction took 809.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 962.4 MB in the end (delta: 126.4 MB). Peak memory consumption was 126.4 MB. Max. memory is 11.5 GB. [2018-12-03 07:06:59,653 INFO L168 Benchmark]: Witness Printer took 32.28 ms. Allocated memory is still 1.1 GB. Free memory was 962.4 MB in the beginning and 955.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-12-03 07:06:59,655 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 115.60 ms. Allocated memory is still 1.0 GB. Free memory was 952.4 MB in the beginning and 940.6 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.02 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.33 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 130.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -148.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 809.83 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 962.4 MB in the end (delta: 126.4 MB). Peak memory consumption was 126.4 MB. Max. memory is 11.5 GB. * Witness Printer took 32.28 ms. Allocated memory is still 1.1 GB. Free memory was 962.4 MB in the beginning and 955.5 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: i <= 1000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 29 SDslu, 135 SDs, 0 SdLazy, 132 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 111 GetRequests, 80 SyntacticMatches, 3 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 11 PreInvPairs, 20 NumberOfFragments, 11 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 23 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 92 NumberOfCodeBlocks, 92 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 5143 SizeOfPredicates, 4 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 29/57 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...