./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/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 138b427ae0d59b9c3947d32f186331712a870d16 ............................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:19:22,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:19:22,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:19:22,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:19:22,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:19:22,137 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:19:22,139 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:19:22,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:19:22,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:19:22,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:19:22,145 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:19:22,147 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:19:22,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:19:22,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:19:22,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:19:22,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:19:22,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:19:22,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:19:22,154 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:19:22,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:19:22,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:19:22,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:19:22,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:19:22,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:19:22,163 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:19:22,163 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:19:22,164 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:19:22,165 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:19:22,165 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:19:22,166 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:19:22,166 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:19:22,167 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:19:22,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:19:22,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:19:22,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:19:22,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:19:22,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:19:22,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:19:22,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:19:22,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:19:22,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:19:22,173 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:19:22,186 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:19:22,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:19:22,187 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:19:22,187 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:19:22,188 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:19:22,188 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:19:22,188 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:19:22,188 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:19:22,188 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:19:22,189 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:19:22,189 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:19:22,189 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:19:22,189 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:19:22,189 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:19:22,190 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:19:22,190 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:19:22,190 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:19:22,191 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:19:22,191 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:19:22,191 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:19:22,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:19:22,192 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:19:22,192 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:19:22,192 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:19:22,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:19:22,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:19:22,193 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:19:22,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:19:22,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:19:22,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:19:22,194 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:19:22,194 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:19:22,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:19:22,194 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:19:22,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:19:22,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:19:22,195 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:19:22,195 INFO L138 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/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__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 -> 138b427ae0d59b9c3947d32f186331712a870d16 [2019-11-26 02:19:22,353 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:19:22,363 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:19:22,366 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:19:22,367 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:19:22,368 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:19:22,368 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/utaipan/../../sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2019-11-26 02:19:22,417 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/utaipan/data/8a0fa63c1/f327cff7adf948c39f1f11fc2bb2ff39/FLAGb5f16b7dc [2019-11-26 02:19:22,823 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:19:22,824 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/sv-benchmarks/c/loop-new/gauss_sum.i.p+lhb-reducer.c [2019-11-26 02:19:22,831 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/utaipan/data/8a0fa63c1/f327cff7adf948c39f1f11fc2bb2ff39/FLAGb5f16b7dc [2019-11-26 02:19:23,213 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/utaipan/data/8a0fa63c1/f327cff7adf948c39f1f11fc2bb2ff39 [2019-11-26 02:19:23,216 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:19:23,218 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:19:23,220 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:19:23,220 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:19:23,223 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:19:23,224 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:19:23" (1/1) ... [2019-11-26 02:19:23,227 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59aa6a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:23, skipping insertion in model container [2019-11-26 02:19:23,227 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:19:23" (1/1) ... [2019-11-26 02:19:23,234 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:19:23,254 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:19:23,430 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:19:23,434 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:19:23,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:19:23,526 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:19:23,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:23 WrapperNode [2019-11-26 02:19:23,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:19:23,528 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:19:23,528 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:19:23,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:19:23,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:23" (1/1) ... [2019-11-26 02:19:23,541 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:23" (1/1) ... [2019-11-26 02:19:23,559 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:19:23,559 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:19:23,559 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:19:23,560 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:19:23,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:23" (1/1) ... [2019-11-26 02:19:23,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:23" (1/1) ... [2019-11-26 02:19:23,568 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:23" (1/1) ... [2019-11-26 02:19:23,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:23" (1/1) ... [2019-11-26 02:19:23,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:23" (1/1) ... [2019-11-26 02:19:23,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:23" (1/1) ... [2019-11-26 02:19:23,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:23" (1/1) ... [2019-11-26 02:19:23,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:19:23,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:19:23,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:19:23,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:19:23,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:23" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:19:23,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:19:23,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:19:23,844 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:19:23,845 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:19:23,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:19:23 BoogieIcfgContainer [2019-11-26 02:19:23,846 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:19:23,847 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:19:23,847 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:19:23,849 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:19:23,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:19:23" (1/3) ... [2019-11-26 02:19:23,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c836f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:19:23, skipping insertion in model container [2019-11-26 02:19:23,850 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:19:23" (2/3) ... [2019-11-26 02:19:23,850 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c836f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:19:23, skipping insertion in model container [2019-11-26 02:19:23,851 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:19:23" (3/3) ... [2019-11-26 02:19:23,852 INFO L109 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2019-11-26 02:19:23,872 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:19:23,887 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:19:23,897 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:19:23,919 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:19:23,919 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:19:23,919 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:19:23,920 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:19:23,920 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:19:23,920 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:19:23,920 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:19:23,920 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:19:23,932 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-11-26 02:19:23,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-11-26 02:19:23,938 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:19:23,938 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:19:23,939 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:19:23,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:19:23,944 INFO L82 PathProgramCache]: Analyzing trace with hash 79507751, now seen corresponding path program 1 times [2019-11-26 02:19:23,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:19:23,953 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737833901] [2019-11-26 02:19:23,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:19:24,038 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-26 02:19:24,039 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [234017146] [2019-11-26 02:19:24,039 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:19:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:19:24,087 WARN L253 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 31 conjunts are in the unsatisfiable core [2019-11-26 02:19:24,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:19:24,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:19:24,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:19:24,286 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:19:26,527 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__n~0 Int)) (let ((.cse0 (+ c_ULTIMATE.start_main_~main__i~0 1))) (or (< ULTIMATE.start_main_~main__n~0 .cse0) (< .cse0 ULTIMATE.start_main_~main__n~0) (= (* ULTIMATE.start_main_~main__n~0 (+ ULTIMATE.start_main_~main__n~0 1)) (+ (* 4 c_ULTIMATE.start_main_~main__i~0) (* 2 c_ULTIMATE.start_main_~main__sum~0) 2))))) is different from true [2019-11-26 02:19:26,548 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_main_~main__n~0 Int)) (let ((.cse0 (+ c_ULTIMATE.start_main_~main__i~0 2))) (or (= (+ (* 2 c_ULTIMATE.start_main_~main__sum~0) (* 6 c_ULTIMATE.start_main_~main__i~0) 6) (* ULTIMATE.start_main_~main__n~0 (+ ULTIMATE.start_main_~main__n~0 1))) (< .cse0 ULTIMATE.start_main_~main__n~0) (< ULTIMATE.start_main_~main__n~0 .cse0)))) is different from true [2019-11-26 02:19:26,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:19:26,554 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737833901] [2019-11-26 02:19:26,555 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:19:26,555 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [234017146] [2019-11-26 02:19:26,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:19:26,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 14 [2019-11-26 02:19:26,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483834810] [2019-11-26 02:19:26,560 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-11-26 02:19:26,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:19:26,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-11-26 02:19:26,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=105, Unknown=3, NotChecked=42, Total=182 [2019-11-26 02:19:26,574 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 14 states. [2019-11-26 02:19:27,411 WARN L192 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2019-11-26 02:19:27,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:19:27,581 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2019-11-26 02:19:27,582 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-26 02:19:27,583 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 11 [2019-11-26 02:19:27,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:19:27,588 INFO L225 Difference]: With dead ends: 32 [2019-11-26 02:19:27,589 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:19:27,593 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=83, Invalid=302, Unknown=3, NotChecked=74, Total=462 [2019-11-26 02:19:27,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:19:27,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:19:27,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:19:27,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:19:27,612 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-11-26 02:19:27,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:19:27,612 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:19:27,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-11-26 02:19:27,612 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:19:27,612 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:19:27,813 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:19:27,816 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:19:30,666 WARN L192 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 25 DAG size of output: 19 [2019-11-26 02:19:30,670 INFO L447 ceAbstractionStarter]: At program point L97(lines 8 101) the Hoare annotation is: true [2019-11-26 02:19:30,670 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:19:30,670 INFO L444 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2019-11-26 02:19:30,671 INFO L444 ceAbstractionStarter]: For program point L62(lines 62 71) no Hoare annotation was computed. [2019-11-26 02:19:30,671 INFO L444 ceAbstractionStarter]: For program point L44(lines 44 78) no Hoare annotation was computed. [2019-11-26 02:19:30,671 INFO L444 ceAbstractionStarter]: For program point L40(lines 40 83) no Hoare annotation was computed. [2019-11-26 02:19:30,671 INFO L444 ceAbstractionStarter]: For program point L36(lines 36 88) no Hoare annotation was computed. [2019-11-26 02:19:30,671 INFO L444 ceAbstractionStarter]: For program point L32(lines 32 93) no Hoare annotation was computed. [2019-11-26 02:19:30,671 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:19:30,671 INFO L444 ceAbstractionStarter]: For program point L28(lines 28 98) no Hoare annotation was computed. [2019-11-26 02:19:30,671 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 64) no Hoare annotation was computed. [2019-11-26 02:19:30,671 INFO L440 ceAbstractionStarter]: At program point L53(lines 45 74) the Hoare annotation is: (and (or (= (* ULTIMATE.start_main_~main__n~0 (+ ULTIMATE.start_main_~main__n~0 1)) (* ULTIMATE.start_main_~main__sum~0 2)) (<= ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__n~0)) (forall ((ULTIMATE.start_main_~main__n~0 Int)) (or (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__n~0) (< ULTIMATE.start_main_~main__n~0 ULTIMATE.start_main_~main__i~0) (= (+ (* ULTIMATE.start_main_~main__sum~0 2) (* ULTIMATE.start_main_~main__i~0 2)) (* ULTIMATE.start_main_~main__n~0 (+ ULTIMATE.start_main_~main__n~0 1)))))) [2019-11-26 02:19:30,671 INFO L444 ceAbstractionStarter]: For program point L20(lines 20 99) no Hoare annotation was computed. [2019-11-26 02:19:30,672 INFO L444 ceAbstractionStarter]: For program point L14(lines 14 100) no Hoare annotation was computed. [2019-11-26 02:19:30,677 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,684 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,685 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:19:30 BoogieIcfgContainer [2019-11-26 02:19:30,687 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:19:30,688 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:19:30,688 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:19:30,688 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:19:30,689 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:19:23" (3/4) ... [2019-11-26 02:19:30,692 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:19:30,702 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:19:30,703 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:19:30,750 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_6a81be3a-71e3-476b-960c-ed74824c9756/bin/utaipan/witness.graphml [2019-11-26 02:19:30,750 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:19:30,752 INFO L168 Benchmark]: Toolchain (without parser) took 7534.14 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 944.7 MB in the beginning and 1.0 GB in the end (delta: -84.5 MB). Peak memory consumption was 74.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:19:30,752 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:19:30,753 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -209.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:19:30,753 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:19:30,754 INFO L168 Benchmark]: Boogie Preprocessor took 15.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:19:30,754 INFO L168 Benchmark]: RCFGBuilder took 271.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:19:30,755 INFO L168 Benchmark]: TraceAbstraction took 6840.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 95.8 MB). Peak memory consumption was 95.8 MB. Max. memory is 11.5 GB. [2019-11-26 02:19:30,755 INFO L168 Benchmark]: Witness Printer took 62.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:19:30,758 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 307.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 159.4 MB). Free memory was 944.7 MB in the beginning and 1.2 GB in the end (delta: -209.5 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.36 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 271.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 18.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6840.99 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 95.8 MB). Peak memory consumption was 95.8 MB. Max. memory is 11.5 GB. * Witness Printer took 62.36 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 64]: 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: 45]: Loop Invariant [2019-11-26 02:19:30,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,765 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,766 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,766 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,767 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,767 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,767 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] [2019-11-26 02:19:30,767 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~main__n~0,QUANTIFIED] Derived loop invariant: (main__n * (main__n + 1) == main__sum * 2 || main__i <= main__n) && (forall ULTIMATE.start_main_~main__n~0 : int :: (main__i < ULTIMATE.start_main_~main__n~0 || ULTIMATE.start_main_~main__n~0 < main__i) || main__sum * 2 + main__i * 2 == ULTIMATE.start_main_~main__n~0 * (ULTIMATE.start_main_~main__n~0 + 1)) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Result: SAFE, OverallTime: 6.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, HoareTripleCheckerStatistics: 12 SDtfs, 40 SDslu, 66 SDs, 0 SdLazy, 122 SolverSat, 12 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 11 NumberOfFragments, 36 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 5 QuantifiedInterpolants, 1860 SizeOfPredicates, 6 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...