./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-new/count_by_1_variant.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-new/count_by_1_variant.i -s /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/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 2c35b63020039b8235bc0a118d8fbb9fe59d3a09 ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-new/count_by_1_variant.i -s /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/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 2c35b63020039b8235bc0a118d8fbb9fe59d3a09 ..................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 11:27:30,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:30,195 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:30,204 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:30,204 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:30,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:30,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:30,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:30,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:30,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:30,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:30,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:30,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:30,212 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:30,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:30,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:30,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:30,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:30,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:30,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:30,220 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:30,221 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:30,222 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:30,223 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:30,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:30,230 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:30,230 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:30,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:30,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:30,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:30,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:30,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:30,232 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:30,233 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:30,237 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:30,238 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:30,238 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:30,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:30,239 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:30,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:30,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:30,244 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-10-22 11:27:30,260 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:30,260 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:30,261 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:30,261 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:30,261 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:30,261 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:30,261 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:27:30,261 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:30,261 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:30,262 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:27:30,262 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:27:30,262 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:30,262 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:30,263 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:30,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:27:30,263 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:30,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:30,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:27:30,263 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:30,263 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:27:30,263 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:30,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:27:30,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:27:30,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:30,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:30,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:30,264 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:30,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:30,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:30,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:30,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:27:30,269 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:27:30,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:27:30,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:27:30,269 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:30,269 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/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/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 -> 2c35b63020039b8235bc0a118d8fbb9fe59d3a09 [2019-10-22 11:27:30,298 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:30,309 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:30,313 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:30,316 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:30,316 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:30,317 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/../../sv-benchmarks/c/loop-new/count_by_1_variant.i [2019-10-22 11:27:30,368 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/data/420c3bd98/fbc0b8aca70b432a9227435932390e59/FLAGc8c08a5d7 [2019-10-22 11:27:30,775 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:30,775 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/sv-benchmarks/c/loop-new/count_by_1_variant.i [2019-10-22 11:27:30,783 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/data/420c3bd98/fbc0b8aca70b432a9227435932390e59/FLAGc8c08a5d7 [2019-10-22 11:27:30,801 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/data/420c3bd98/fbc0b8aca70b432a9227435932390e59 [2019-10-22 11:27:30,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:30,806 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:30,807 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:30,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:30,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:30,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:30" (1/1) ... [2019-10-22 11:27:30,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@566b574d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:30, skipping insertion in model container [2019-10-22 11:27:30,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:30" (1/1) ... [2019-10-22 11:27:30,825 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:30,844 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:30,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:30,982 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:31,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:31,062 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:31,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:31 WrapperNode [2019-10-22 11:27:31,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:31,063 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:31,063 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:31,063 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:31,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:31" (1/1) ... [2019-10-22 11:27:31,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:31" (1/1) ... [2019-10-22 11:27:31,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:31,092 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:31,092 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:31,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:31,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:31" (1/1) ... [2019-10-22 11:27:31,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:31" (1/1) ... [2019-10-22 11:27:31,099 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:31" (1/1) ... [2019-10-22 11:27:31,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:31" (1/1) ... [2019-10-22 11:27:31,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:31" (1/1) ... [2019-10-22 11:27:31,103 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:31" (1/1) ... [2019-10-22 11:27:31,104 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:31" (1/1) ... [2019-10-22 11:27:31,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:31,105 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:31,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:31,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:31,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/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 [2019-10-22 11:27:31,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:31,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:31,259 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:31,259 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 11:27:31,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:31 BoogieIcfgContainer [2019-10-22 11:27:31,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:31,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:31,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:31,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:31,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:30" (1/3) ... [2019-10-22 11:27:31,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acc4d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:31, skipping insertion in model container [2019-10-22 11:27:31,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:31" (2/3) ... [2019-10-22 11:27:31,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4acc4d4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:31, skipping insertion in model container [2019-10-22 11:27:31,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:31" (3/3) ... [2019-10-22 11:27:31,267 INFO L109 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2019-10-22 11:27:31,275 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:31,281 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:27:31,290 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:27:31,310 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:31,311 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:27:31,311 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:31,311 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:31,311 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:31,311 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:31,311 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:31,311 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:31,321 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-10-22 11:27:31,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:27:31,326 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:31,327 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:27:31,329 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:31,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:31,333 INFO L82 PathProgramCache]: Analyzing trace with hash 962347, now seen corresponding path program 1 times [2019-10-22 11:27:31,338 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:31,339 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76782372] [2019-10-22 11:27:31,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:31,339 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:31,339 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:31,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:31,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:31,460 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76782372] [2019-10-22 11:27:31,460 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:31,461 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-22 11:27:31,461 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703898998] [2019-10-22 11:27:31,465 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-22 11:27:31,466 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-22 11:27:31,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-22 11:27:31,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-22 11:27:31,481 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2019-10-22 11:27:31,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:31,547 INFO L93 Difference]: Finished difference Result 26 states and 32 transitions. [2019-10-22 11:27:31,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 11:27:31,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-10-22 11:27:31,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:31,562 INFO L225 Difference]: With dead ends: 26 [2019-10-22 11:27:31,563 INFO L226 Difference]: Without dead ends: 9 [2019-10-22 11:27:31,575 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-22 11:27:31,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-10-22 11:27:31,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 8. [2019-10-22 11:27:31,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-10-22 11:27:31,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2019-10-22 11:27:31,604 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2019-10-22 11:27:31,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:31,605 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2019-10-22 11:27:31,605 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-22 11:27:31,605 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2019-10-22 11:27:31,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-10-22 11:27:31,606 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:31,606 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2019-10-22 11:27:31,606 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:31,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:31,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1390656418, now seen corresponding path program 1 times [2019-10-22 11:27:31,607 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:27:31,607 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094326484] [2019-10-22 11:27:31,607 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:31,607 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:27:31,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:27:31,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:31,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:31,675 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094326484] [2019-10-22 11:27:31,676 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375107464] [2019-10-22 11:27:31,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/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 [2019-10-22 11:27:31,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:31,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 11:27:31,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:31,728 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:27:31,743 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:31,744 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:31,768 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:31,768 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1568386234] [2019-10-22 11:27:31,774 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 8 [2019-10-22 11:27:31,808 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2019-10-22 11:27:31,809 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-22 11:27:32,080 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:27:32,080 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: inappropriate decl info IMPLEMENTATION at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.getBoogieVar(NonrelationalStatementProcessor.java:348) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleHavocStatement(NonrelationalStatementProcessor.java:325) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:159) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:138) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:107) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:422) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:413) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:140) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.restoreOriginalStateVariables(PoormanCachedPostOperation.java:322) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:120) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:519) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:323) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateAbstractPost(FixpointEngine.java:249) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.calculateFixpoint(FixpointEngine.java:134) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.algorithm.FixpointEngine.run(FixpointEngine.java:105) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.tool.AbstractInterpreter.runWithoutTimeoutAndResults(AbstractInterpreter.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.generateFixpoints(CegarAbsIntRunner.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarAbsIntRunner.(CegarAbsIntRunner.java:158) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.getOrConstructRunner(IpTcStrategyModuleAbstractInterpretation.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleAbstractInterpretation.construct(IpTcStrategyModuleAbstractInterpretation.java:81) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.tryExecuteInterpolantGenerator(TraceAbstractionRefinementEngine.java:299) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.generateProof(TraceAbstractionRefinementEngine.java:184) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.executeStrategy(TraceAbstractionRefinementEngine.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.RefinementEngineFactory.runRefinementEngine(RefinementEngineFactory.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-10-22 11:27:32,086 INFO L168 Benchmark]: Toolchain (without parser) took 1279.52 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -145.2 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:32,087 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:32,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 945.9 MB in the beginning and 1.2 GB in the end (delta: -212.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:32,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.43 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. [2019-10-22 11:27:32,088 INFO L168 Benchmark]: Boogie Preprocessor took 13.26 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. [2019-10-22 11:27:32,088 INFO L168 Benchmark]: RCFGBuilder took 155.11 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:32,089 INFO L168 Benchmark]: TraceAbstraction took 822.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:32,096 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 255.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 163.6 MB). Free memory was 945.9 MB in the beginning and 1.2 GB in the end (delta: -212.2 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.43 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 13.26 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 155.11 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 822.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 48.7 MB). Peak memory consumption was 48.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: inappropriate decl info IMPLEMENTATION de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: inappropriate decl info IMPLEMENTATION: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Boogie2SmtSymbolTable.getBoogieVar(Boogie2SmtSymbolTable.java:222) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 11:27:34,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:27:34,255 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:27:34,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:27:34,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:27:34,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:27:34,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:27:34,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:27:34,272 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:27:34,273 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:27:34,274 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:27:34,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:27:34,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:27:34,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:27:34,285 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:27:34,286 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:27:34,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:27:34,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:27:34,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:27:34,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:27:34,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:27:34,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:27:34,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:27:34,295 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:27:34,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:27:34,298 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:27:34,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:27:34,301 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:27:34,302 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:27:34,302 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:27:34,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:27:34,303 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:27:34,304 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:27:34,304 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:27:34,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:27:34,306 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:27:34,307 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:27:34,307 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:27:34,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:27:34,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:27:34,308 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:27:34,309 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2019-10-22 11:27:34,335 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:27:34,336 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:27:34,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:27:34,337 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:27:34,337 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:27:34,337 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:27:34,337 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:27:34,337 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:27:34,337 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:27:34,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:27:34,338 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 11:27:34,338 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 11:27:34,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:27:34,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:27:34,341 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:27:34,341 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:27:34,341 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 11:27:34,341 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 11:27:34,341 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 11:27:34,341 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:27:34,342 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 11:27:34,342 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:27:34,342 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:27:34,342 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:27:34,342 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:27:34,342 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:27:34,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:27:34,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:27:34,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:27:34,343 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:27:34,343 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2019-10-22 11:27:34,343 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 11:27:34,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:27:34,344 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:27:34,344 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_64691989-6f19-4bfb-a3fc-62ca309e57c0/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 -> 2c35b63020039b8235bc0a118d8fbb9fe59d3a09 [2019-10-22 11:27:34,373 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:27:34,384 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:27:34,388 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:27:34,390 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:27:34,390 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:27:34,390 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/../../sv-benchmarks/c/loop-new/count_by_1_variant.i [2019-10-22 11:27:34,443 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/data/fdf50e5a2/dc8bf5d2484f418dba6f160073ebc106/FLAG559b70873 [2019-10-22 11:27:34,789 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:27:34,790 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/sv-benchmarks/c/loop-new/count_by_1_variant.i [2019-10-22 11:27:34,797 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/data/fdf50e5a2/dc8bf5d2484f418dba6f160073ebc106/FLAG559b70873 [2019-10-22 11:27:35,180 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/data/fdf50e5a2/dc8bf5d2484f418dba6f160073ebc106 [2019-10-22 11:27:35,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:27:35,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:27:35,185 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:35,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:27:35,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:27:35,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:35" (1/1) ... [2019-10-22 11:27:35,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c9a4ac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:35, skipping insertion in model container [2019-10-22 11:27:35,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:27:35" (1/1) ... [2019-10-22 11:27:35,199 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:27:35,213 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:27:35,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:35,376 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:27:35,391 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:27:35,407 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:27:35,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:35 WrapperNode [2019-10-22 11:27:35,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:27:35,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:35,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:27:35,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:27:35,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:35" (1/1) ... [2019-10-22 11:27:35,424 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:35" (1/1) ... [2019-10-22 11:27:35,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:27:35,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:27:35,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:27:35,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:27:35,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:35" (1/1) ... [2019-10-22 11:27:35,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:35" (1/1) ... [2019-10-22 11:27:35,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:35" (1/1) ... [2019-10-22 11:27:35,515 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:35" (1/1) ... [2019-10-22 11:27:35,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:35" (1/1) ... [2019-10-22 11:27:35,524 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:35" (1/1) ... [2019-10-22 11:27:35,526 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:35" (1/1) ... [2019-10-22 11:27:35,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:27:35,528 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:27:35,528 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:27:35,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:27:35,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/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 [2019-10-22 11:27:35,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:27:35,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:27:35,711 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:27:35,711 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-10-22 11:27:35,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:35 BoogieIcfgContainer [2019-10-22 11:27:35,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:27:35,713 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:27:35,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:27:35,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:27:35,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:27:35" (1/3) ... [2019-10-22 11:27:35,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b213570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:35, skipping insertion in model container [2019-10-22 11:27:35,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:27:35" (2/3) ... [2019-10-22 11:27:35,718 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b213570 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:27:35, skipping insertion in model container [2019-10-22 11:27:35,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:35" (3/3) ... [2019-10-22 11:27:35,719 INFO L109 eAbstractionObserver]: Analyzing ICFG count_by_1_variant.i [2019-10-22 11:27:35,728 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:27:35,732 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 11:27:35,740 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 11:27:35,760 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:27:35,760 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:27:35,760 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:27:35,761 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:27:35,761 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:27:35,761 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:27:35,761 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:27:35,761 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:27:35,774 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-10-22 11:27:35,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:27:35,780 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:35,780 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:27:35,782 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:35,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:35,787 INFO L82 PathProgramCache]: Analyzing trace with hash 962347, now seen corresponding path program 1 times [2019-10-22 11:27:35,797 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:35,797 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [978891080] [2019-10-22 11:27:35,798 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/cvc4 Starting monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:35,849 WARN L254 TraceCheckSpWp]: Trace formula consists of 8 conjuncts, 4 conjunts are in the unsatisfiable core [2019-10-22 11:27:35,854 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:35,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:35,952 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:35,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:35,986 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [978891080] [2019-10-22 11:27:35,986 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 11:27:35,987 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-10-22 11:27:35,987 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591044063] [2019-10-22 11:27:35,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 11:27:35,991 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:36,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 11:27:36,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-22 11:27:36,002 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2019-10-22 11:27:36,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:36,102 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2019-10-22 11:27:36,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-22 11:27:36,103 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-10-22 11:27:36,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:36,112 INFO L225 Difference]: With dead ends: 30 [2019-10-22 11:27:36,112 INFO L226 Difference]: Without dead ends: 13 [2019-10-22 11:27:36,115 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-10-22 11:27:36,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-10-22 11:27:36,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 11. [2019-10-22 11:27:36,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-10-22 11:27:36,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-10-22 11:27:36,154 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 4 [2019-10-22 11:27:36,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:36,155 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-10-22 11:27:36,155 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 11:27:36,155 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-10-22 11:27:36,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-22 11:27:36,156 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:27:36,156 INFO L380 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2019-10-22 11:27:36,356 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:36,357 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 11:27:36,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:27:36,357 INFO L82 PathProgramCache]: Analyzing trace with hash 214023755, now seen corresponding path program 1 times [2019-10-22 11:27:36,357 INFO L157 tionRefinementEngine]: Executing refinement strategy WALRUS [2019-10-22 11:27:36,358 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleCvc4 [1652753114] [2019-10-22 11:27:36,358 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/cvc4 Starting monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4 --incremental --print-success --lang smt --rewrite-divk [2019-10-22 11:27:36,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:36,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 11:27:36,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:36,454 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:36,454 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:36,548 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:36,548 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1652753114] [2019-10-22 11:27:36,549 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998202670] [2019-10-22 11:27:36,549 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:27:36,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 11:27:36,580 WARN L254 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-22 11:27:36,581 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 11:27:36,625 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:36,625 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 11:27:36,668 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-22 11:27:36,706 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 11:27:36,706 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-22 11:27:36,706 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 7] total 12 [2019-10-22 11:27:36,707 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798322041] [2019-10-22 11:27:36,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-22 11:27:36,708 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2019-10-22 11:27:36,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-22 11:27:36,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2019-10-22 11:27:36,710 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 13 states. [2019-10-22 11:27:36,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 11:27:36,932 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2019-10-22 11:27:36,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-22 11:27:36,933 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 10 [2019-10-22 11:27:36,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 11:27:36,934 INFO L225 Difference]: With dead ends: 19 [2019-10-22 11:27:36,934 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 11:27:36,935 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2019-10-22 11:27:36,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 11:27:36,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 11:27:36,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 11:27:36,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 11:27:36,936 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-22 11:27:36,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 11:27:36,937 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 11:27:36,937 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-22 11:27:36,937 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 11:27:36,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 11:27:37,338 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 cvc4 --incremental --print-success --lang smt --rewrite-divk,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-22 11:27:37,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 11:27:37,522 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 11:27:37,526 INFO L439 ceAbstractionStarter]: At program point L15(lines 10 16) the Hoare annotation is: (and (bvsle ULTIMATE.start_main_~i~0 (_ bv1000000 32)) (not (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)))) [2019-10-22 11:27:37,527 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-22 11:27:37,527 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-22 11:27:37,527 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 11:27:37,527 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 11:27:37,527 INFO L439 ceAbstractionStarter]: At program point L12-2(lines 12 14) the Hoare annotation is: (or (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (bvsle ULTIMATE.start_main_~i~0 (_ bv1000000 32))) (= (_ bv0 32) ULTIMATE.start_main_~i~0)) [2019-10-22 11:27:37,528 INFO L443 ceAbstractionStarter]: For program point L12-3(lines 12 14) no Hoare annotation was computed. [2019-10-22 11:27:37,528 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-22 11:27:37,528 INFO L439 ceAbstractionStarter]: At program point L4-2(lines 1 16) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (bvsle ULTIMATE.start_main_~i~0 (_ bv1000000 32)) (bvsle (bvadd ULTIMATE.start_main_~i~0 (_ bv1 32)) (_ bv1000000 32))) [2019-10-22 11:27:37,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:27:37 BoogieIcfgContainer [2019-10-22 11:27:37,547 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:27:37,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:27:37,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:27:37,548 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:27:37,549 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:27:35" (3/4) ... [2019-10-22 11:27:37,554 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 11:27:37,564 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-10-22 11:27:37,564 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-10-22 11:27:37,601 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_64691989-6f19-4bfb-a3fc-62ca309e57c0/bin/utaipan/witness.graphml [2019-10-22 11:27:37,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:27:37,603 INFO L168 Benchmark]: Toolchain (without parser) took 2418.64 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 951.0 MB in the beginning and 1.0 GB in the end (delta: -75.8 MB). Peak memory consumption was 79.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:37,603 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:37,604 INFO L168 Benchmark]: CACSL2BoogieTranslator took 224.16 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:37,604 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.31 ms. Allocated memory is still 1.0 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:27:37,605 INFO L168 Benchmark]: Boogie Preprocessor took 83.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -204.6 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:37,606 INFO L168 Benchmark]: RCFGBuilder took 183.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:37,606 INFO L168 Benchmark]: TraceAbstraction took 1833.72 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: 99.5 MB). Peak memory consumption was 99.5 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:37,607 INFO L168 Benchmark]: Witness Printer took 53.86 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 11:27:37,610 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 977.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 224.16 ms. Allocated memory is still 1.0 GB. Free memory was 951.0 MB in the beginning and 940.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.31 ms. Allocated memory is still 1.0 GB. Free memory is still 940.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 940.2 MB in the beginning and 1.1 GB in the end (delta: -204.6 MB). Peak memory consumption was 12.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 183.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1833.72 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: 99.5 MB). Peak memory consumption was 99.5 MB. Max. memory is 11.5 GB. * Witness Printer took 53.86 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: 6.6 MB). Peak memory consumption was 6.6 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: 10]: Loop Invariant Derived loop invariant: ~bvsle32(i, 1000000bv32) && !(cond == 0bv32) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: (~bvadd64(cond, 4294967295bv32) == 0bv32 && ~bvsle32(i, 1000000bv32)) || 0bv32 == i - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (~bvadd64(cond, 4294967295bv32) == 0bv32 && ~bvsle32(i, 1000000bv32)) && ~bvsle32(~bvadd64(i, 1bv32), 1000000bv32) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: SAFE, OverallTime: 1.7s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 7 SDtfs, 50 SDslu, 17 SDs, 0 SdLazy, 51 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=1, 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 16 NumberOfFragments, 35 HoareAnnotationTreeSize, 3 FomulaSimplifications, 122 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 83 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 1500 SizeOfPredicates, 11 NumberOfNonLiveVariables, 44 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 0/28 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...