./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8538ad1ae962a1ba831f755fb5c2de9d27f82db5 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:07:08,352 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:07:08,353 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:07:08,360 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:07:08,360 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:07:08,361 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:07:08,361 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:07:08,363 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:07:08,364 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:07:08,365 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:07:08,365 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:07:08,369 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:07:08,370 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:07:08,370 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:07:08,371 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:07:08,372 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:07:08,372 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:07:08,374 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:07:08,375 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:07:08,377 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:07:08,379 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:07:08,380 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:07:08,382 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:07:08,382 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:07:08,382 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:07:08,383 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:07:08,384 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:07:08,384 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:07:08,385 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:07:08,387 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:07:08,387 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:07:08,388 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:07:08,388 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:07:08,388 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:07:08,389 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:07:08,389 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:07:08,390 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 15:07:08,409 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:07:08,413 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:07:08,414 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:07:08,415 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:07:08,415 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:07:08,415 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:07:08,415 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:07:08,415 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:07:08,415 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:07:08,415 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:07:08,416 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:07:08,416 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:07:08,416 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:07:08,416 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:07:08,417 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:07:08,417 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:07:08,417 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:07:08,417 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:07:08,417 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:07:08,417 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:07:08,417 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:07:08,417 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:07:08,418 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:07:08,418 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:07:08,418 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:07:08,418 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:07:08,418 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:07:08,418 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:07:08,418 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:07:08,418 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:07:08,419 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:07:08,419 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:07:08,419 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:07:08,419 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:07:08,419 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:07:08,419 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:07:08,419 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:07:08,420 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8538ad1ae962a1ba831f755fb5c2de9d27f82db5 [2018-11-18 15:07:08,465 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:07:08,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:07:08,480 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:07:08,486 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:07:08,487 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:07:08,487 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan/../../sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-18 15:07:08,541 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan/data/50b8252cd/4d6b85f2722a462c8cff7cce242cad84/FLAG3e0d6c7c1 [2018-11-18 15:07:08,914 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:07:08,914 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/sv-benchmarks/c/loop-crafted/simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-18 15:07:08,919 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan/data/50b8252cd/4d6b85f2722a462c8cff7cce242cad84/FLAG3e0d6c7c1 [2018-11-18 15:07:08,930 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan/data/50b8252cd/4d6b85f2722a462c8cff7cce242cad84 [2018-11-18 15:07:08,933 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:07:08,934 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:07:08,935 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:07:08,935 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:07:08,938 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:07:08,938 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:07:08" (1/1) ... [2018-11-18 15:07:08,941 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@411459c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:08, skipping insertion in model container [2018-11-18 15:07:08,941 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:07:08" (1/1) ... [2018-11-18 15:07:08,950 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:07:08,984 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:07:09,139 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:07:09,142 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:07:09,163 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:07:09,178 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:07:09,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:09 WrapperNode [2018-11-18 15:07:09,179 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:07:09,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:07:09,179 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:07:09,179 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:07:09,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:09" (1/1) ... [2018-11-18 15:07:09,193 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:09" (1/1) ... [2018-11-18 15:07:09,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:07:09,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:07:09,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:07:09,199 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:07:09,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:09" (1/1) ... [2018-11-18 15:07:09,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:09" (1/1) ... [2018-11-18 15:07:09,208 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:09" (1/1) ... [2018-11-18 15:07:09,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:09" (1/1) ... [2018-11-18 15:07:09,214 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:09" (1/1) ... [2018-11-18 15:07:09,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:09" (1/1) ... [2018-11-18 15:07:09,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:09" (1/1) ... [2018-11-18 15:07:09,222 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:07:09,223 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:07:09,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:07:09,225 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:07:09,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:07:09,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:07:09,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:07:09,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:07:09,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:07:09,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:07:09,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:07:09,312 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:07:09,312 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:07:09,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-18 15:07:09,312 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-18 15:07:09,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:07:09,484 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:07:09,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:07:09 BoogieIcfgContainer [2018-11-18 15:07:09,484 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:07:09,485 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:07:09,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:07:09,487 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:07:09,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:07:08" (1/3) ... [2018-11-18 15:07:09,488 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef646d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:07:09, skipping insertion in model container [2018-11-18 15:07:09,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:07:09" (2/3) ... [2018-11-18 15:07:09,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ef646d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:07:09, skipping insertion in model container [2018-11-18 15:07:09,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:07:09" (3/3) ... [2018-11-18 15:07:09,490 INFO L112 eAbstractionObserver]: Analyzing ICFG simple_array_index_value_true-unreach-call4_true-termination.i [2018-11-18 15:07:09,498 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:07:09,509 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:07:09,522 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:07:09,548 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:07:09,548 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:07:09,548 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:07:09,548 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:07:09,548 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:07:09,548 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:07:09,548 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:07:09,549 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:07:09,563 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-11-18 15:07:09,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-18 15:07:09,568 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:07:09,568 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:07:09,570 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:07:09,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:07:09,575 INFO L82 PathProgramCache]: Analyzing trace with hash 853272646, now seen corresponding path program 1 times [2018-11-18 15:07:09,577 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:07:09,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:07:09,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:07:09,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:07:09,619 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:07:09,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:09,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:09,742 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:07:09,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-18 15:07:09,743 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:07:09,746 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:07:09,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:07:09,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:07:09,756 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 5 states. [2018-11-18 15:07:09,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:07:09,868 INFO L93 Difference]: Finished difference Result 62 states and 85 transitions. [2018-11-18 15:07:09,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-18 15:07:09,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-11-18 15:07:09,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:07:09,877 INFO L225 Difference]: With dead ends: 62 [2018-11-18 15:07:09,877 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 15:07:09,880 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:07:09,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 15:07:09,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 28. [2018-11-18 15:07:09,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-18 15:07:09,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2018-11-18 15:07:09,910 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 12 [2018-11-18 15:07:09,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:07:09,910 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2018-11-18 15:07:09,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:07:09,910 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2018-11-18 15:07:09,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 15:07:09,912 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:07:09,912 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:07:09,912 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:07:09,912 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:07:09,912 INFO L82 PathProgramCache]: Analyzing trace with hash 653700861, now seen corresponding path program 1 times [2018-11-18 15:07:09,913 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:07:09,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:07:09,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:07:09,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:07:09,914 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:07:09,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:09,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:09,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:07:09,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:07:09,962 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:07:09,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:07:09,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:07:09,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:07:09,964 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand 3 states. [2018-11-18 15:07:09,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:07:09,973 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-11-18 15:07:09,973 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:07:09,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2018-11-18 15:07:09,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:07:09,974 INFO L225 Difference]: With dead ends: 40 [2018-11-18 15:07:09,974 INFO L226 Difference]: Without dead ends: 29 [2018-11-18 15:07:09,975 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:07:09,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-11-18 15:07:09,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2018-11-18 15:07:09,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-11-18 15:07:09,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2018-11-18 15:07:09,980 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 15 [2018-11-18 15:07:09,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:07:09,980 INFO L480 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2018-11-18 15:07:09,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:07:09,980 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-11-18 15:07:09,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 15:07:09,981 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:07:09,981 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:07:09,981 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:07:09,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:07:09,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1313509780, now seen corresponding path program 1 times [2018-11-18 15:07:09,982 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:07:09,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:07:09,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:07:09,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:07:09,983 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:07:10,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:10,174 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:10,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:07:10,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-11-18 15:07:10,174 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:07:10,175 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-18 15:07:10,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-18 15:07:10,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2018-11-18 15:07:10,175 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 8 states. [2018-11-18 15:07:10,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:07:10,308 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2018-11-18 15:07:10,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 15:07:10,309 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2018-11-18 15:07:10,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:07:10,310 INFO L225 Difference]: With dead ends: 43 [2018-11-18 15:07:10,310 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 15:07:10,310 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:07:10,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 15:07:10,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 27. [2018-11-18 15:07:10,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 15:07:10,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-11-18 15:07:10,316 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 20 [2018-11-18 15:07:10,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:07:10,316 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-11-18 15:07:10,316 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-18 15:07:10,316 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-11-18 15:07:10,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 15:07:10,317 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:07:10,317 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:07:10,317 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:07:10,318 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:07:10,318 INFO L82 PathProgramCache]: Analyzing trace with hash 2042551023, now seen corresponding path program 1 times [2018-11-18 15:07:10,318 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:07:10,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:07:10,319 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:07:10,319 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:07:10,319 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:07:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:10,691 WARN L180 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 13 [2018-11-18 15:07:11,002 WARN L180 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 36 [2018-11-18 15:07:11,134 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:11,134 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:07:11,135 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:07:11,135 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 24 with the following transitions: [2018-11-18 15:07:11,137 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [17], [23], [27], [33], [44], [47], [49], [52], [54], [55], [56], [57], [59], [60], [61] [2018-11-18 15:07:11,167 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:07:11,167 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:07:11,340 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:07:11,341 INFO L272 AbstractInterpreter]: Visited 21 different actions 38 times. Merged at 5 different actions 5 times. Never widened. Performed 158 root evaluator evaluations with a maximum evaluation depth of 8. Performed 158 inverse root evaluator evaluations with a maximum inverse evaluation depth of 8. Found 1 fixpoints after 1 different actions. Largest state had 23 variables. [2018-11-18 15:07:11,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:07:11,356 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:07:11,356 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:07:11,356 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:07:11,365 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:07:11,365 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:07:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:07:11,960 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:07:13,006 WARN L180 SmtUtils]: Spent 823.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-11-18 15:07:13,050 WARN L307 Elim1Store]: Array PQE input equivalent to false [2018-11-18 15:07:13,050 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-11-18 15:07:13,108 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 42 [2018-11-18 15:07:13,112 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:07:13,114 INFO L700 Elim1Store]: detected not equals via solver [2018-11-18 15:07:13,116 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:13,119 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:13,125 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 60 [2018-11-18 15:07:13,126 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 15:07:13,157 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:07:13,258 INFO L267 ElimStorePlain]: Start of recursive call 1: 12 dim-0 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:07:13,259 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 16 variables, input treesize:381, output treesize:7 [2018-11-18 15:07:13,333 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:07:13,333 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:07:13,520 WARN L180 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2018-11-18 15:07:13,781 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 207 treesize of output 183 [2018-11-18 15:07:13,793 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:13,797 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:13,798 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:13,799 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:13,810 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:13,811 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:13,820 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:13,828 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:13,829 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:13,830 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:14,058 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:14,059 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:14,059 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:14,080 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:14,212 INFO L303 Elim1Store]: Index analysis took 428 ms [2018-11-18 15:07:14,228 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 14 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 2 case distinctions, treesize of input 158 treesize of output 321 [2018-11-18 15:07:14,235 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 4 xjuncts. [2018-11-18 15:07:14,318 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:07:53,144 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 143 treesize of output 127 [2018-11-18 15:07:55,158 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:55,162 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:55,162 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:55,163 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:55,164 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:55,164 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:55,177 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:55,177 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:55,183 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:55,184 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:07:57,497 WARN L686 Elim1Store]: solver failed to check if following not equals relation is implied: (= (select v_arrayElimCell_9 (+ (* 4 (mod (+ main_~index1~0 1) 4294967296)) |main_~#array~0.offset| (- 17179869184))) (select v_arrayElimCell_9 (+ (* 4 (mod main_~index1~0 4294967296)) |main_~#array~0.offset|))) [2018-11-18 15:07:57,972 INFO L303 Elim1Store]: Index analysis took 4826 ms [2018-11-18 15:07:57,978 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 111 treesize of output 222 [2018-11-18 15:07:57,981 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2018-11-18 15:07:58,037 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:08:27,865 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 116 [2018-11-18 15:08:27,888 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:08:27,899 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:08:27,902 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:08:27,907 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:08:27,908 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:08:27,908 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:08:27,909 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:08:27,909 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:08:27,910 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:08:27,988 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:08:28,046 INFO L303 Elim1Store]: Index analysis took 180 ms [2018-11-18 15:08:28,053 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 105 treesize of output 210 [2018-11-18 15:08:28,056 INFO L267 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2018-11-18 15:08:28,132 INFO L267 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:08:28,753 INFO L267 ElimStorePlain]: Start of recursive call 1: 78 dim-0 vars, 78 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:08:28,753 INFO L202 ElimStorePlain]: Needed 7 recursive calls to eliminate 156 variables, input treesize:12356, output treesize:29 [2018-11-18 15:08:28,794 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:08:28,810 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-11-18 15:08:28,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [8] total 16 [2018-11-18 15:08:28,811 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:08:28,811 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 15:08:28,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 15:08:28,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-11-18 15:08:28,811 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2018-11-18 15:08:29,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:08:29,445 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2018-11-18 15:08:29,448 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-18 15:08:29,448 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-11-18 15:08:29,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:08:29,448 INFO L225 Difference]: With dead ends: 39 [2018-11-18 15:08:29,448 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:08:29,449 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 7 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2018-11-18 15:08:29,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:08:29,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:08:29,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:08:29,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:08:29,449 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-11-18 15:08:29,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:08:29,450 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:08:29,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 15:08:29,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:08:29,450 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:08:29,453 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:08:29,718 WARN L180 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35 [2018-11-18 15:08:29,765 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:08:29,765 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:08:29,765 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:08:29,766 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:08:29,766 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 15:08:29,766 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:08:29,766 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:08:29,766 INFO L425 ceAbstractionStarter]: For program point L31-1(lines 31 37) no Hoare annotation was computed. [2018-11-18 15:08:29,766 INFO L421 ceAbstractionStarter]: At program point L31-3(lines 31 37) the Hoare annotation is: (let ((.cse0 (= 0 |main_~#array~0.offset|))) (or (and (<= main_~index2~0 (+ (* 4294967296 (div main_~index2~0 4294967296)) 99999)) (= main_~loop_entered~0 0) .cse0 (< (mod main_~index1~0 4294967296) 100000)) (let ((.cse2 (mod (+ main_~index2~0 1) 4294967296)) (.cse1 (mod (+ main_~index1~0 4294967295) 4294967296))) (and (< .cse1 .cse2) .cse0 (< .cse2 100000) (let ((.cse3 (select |#memory_int| |main_~#array~0.base|))) (= (mod (select .cse3 (+ (* 4 .cse2) |main_~#array~0.offset|)) 4294967296) (mod (select .cse3 (+ (* 4 .cse1) |main_~#array~0.offset|)) 4294967296))))))) [2018-11-18 15:08:29,766 INFO L425 ceAbstractionStarter]: For program point L31-4(lines 20 47) no Hoare annotation was computed. [2018-11-18 15:08:29,766 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 19 47) no Hoare annotation was computed. [2018-11-18 15:08:29,766 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 19 47) no Hoare annotation was computed. [2018-11-18 15:08:29,767 INFO L425 ceAbstractionStarter]: For program point L40-1(lines 40 44) no Hoare annotation was computed. [2018-11-18 15:08:29,767 INFO L421 ceAbstractionStarter]: At program point L40-3(lines 40 44) the Hoare annotation is: (let ((.cse1 (= 0 |main_~#array~0.offset|))) (or (let ((.cse0 (mod main_~index2~0 4294967296))) (and (< .cse0 100000) .cse1 (< (mod main_~index1~0 4294967296) .cse0))) (let ((.cse3 (mod (+ main_~index2~0 1) 4294967296)) (.cse2 (mod (+ main_~index1~0 4294967295) 4294967296))) (and (< .cse2 .cse3) .cse1 (< .cse3 100000) (let ((.cse4 (select |#memory_int| |main_~#array~0.base|))) (= (mod (select .cse4 (+ (* 4 .cse3) |main_~#array~0.offset|)) 4294967296) (mod (select .cse4 (+ (* 4 .cse2) |main_~#array~0.offset|)) 4294967296))))))) [2018-11-18 15:08:29,767 INFO L421 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: (and (let ((.cse0 (* 4294967296 (div main_~index2~0 4294967296)))) (or (and (<= main_~index2~0 (+ .cse0 99999)) (= main_~loop_entered~0 0)) (<= main_~index2~0 (+ .cse0 99998)))) (= 0 |main_~#array~0.offset|) (< (mod main_~index1~0 4294967296) (mod main_~index2~0 4294967296))) [2018-11-18 15:08:29,767 INFO L425 ceAbstractionStarter]: For program point L32-1(line 32) no Hoare annotation was computed. [2018-11-18 15:08:29,767 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 19 47) the Hoare annotation is: true [2018-11-18 15:08:29,767 INFO L421 ceAbstractionStarter]: At program point L41(line 41) the Hoare annotation is: (let ((.cse3 (mod (+ main_~index2~0 1) 4294967296)) (.cse2 (mod (+ main_~index1~0 4294967295) 4294967296)) (.cse1 (* 4294967296 (div |main_#t~mem7| 4294967296))) (.cse0 (+ (* 4294967296 (div |main_#t~mem8| 4294967296)) |main_#t~mem7|))) (and (< .cse0 (+ .cse1 |main_#t~mem8| 1)) (< .cse2 .cse3) (= 0 |main_~#array~0.offset|) (< .cse3 100000) (let ((.cse4 (select |#memory_int| |main_~#array~0.base|))) (= (mod (select .cse4 (+ (* 4 .cse3) |main_~#array~0.offset|)) 4294967296) (mod (select .cse4 (+ (* 4 .cse2) |main_~#array~0.offset|)) 4294967296))) (<= (mod main_~index2~0 4294967296) (mod main_~index1~0 4294967296)) (<= (+ .cse1 |main_#t~mem8|) .cse0))) [2018-11-18 15:08:29,767 INFO L425 ceAbstractionStarter]: For program point L41-1(line 41) no Hoare annotation was computed. [2018-11-18 15:08:29,768 INFO L425 ceAbstractionStarter]: For program point L39(lines 39 45) no Hoare annotation was computed. [2018-11-18 15:08:29,768 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2018-11-18 15:08:29,768 INFO L425 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-11-18 15:08:29,768 INFO L425 ceAbstractionStarter]: For program point L11(lines 11 13) no Hoare annotation was computed. [2018-11-18 15:08:29,768 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2018-11-18 15:08:29,768 INFO L425 ceAbstractionStarter]: For program point L11-2(lines 9 15) no Hoare annotation was computed. [2018-11-18 15:08:29,768 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2018-11-18 15:08:29,774 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:08:29,774 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:08:29,778 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:08:29,779 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:08:29,780 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:08:29,780 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:08:29,781 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:08:29,781 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:08:29,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:08:29 BoogieIcfgContainer [2018-11-18 15:08:29,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:08:29,783 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:08:29,783 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:08:29,783 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:08:29,784 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:07:09" (3/4) ... [2018-11-18 15:08:29,786 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:08:29,790 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:08:29,791 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:08:29,791 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-18 15:08:29,794 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-11-18 15:08:29,794 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 15:08:29,794 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 15:08:29,825 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_355106a8-77dd-4c4b-9302-3f4183eb0d85/bin-2019/utaipan/witness.graphml [2018-11-18 15:08:29,825 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:08:29,826 INFO L168 Benchmark]: Toolchain (without parser) took 80892.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 147.3 MB). Free memory was 953.7 MB in the beginning and 848.8 MB in the end (delta: 104.9 MB). Peak memory consumption was 252.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:08:29,827 INFO L168 Benchmark]: CDTParser took 0.81 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:08:29,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.28 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 943.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:08:29,827 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.70 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:08:29,828 INFO L168 Benchmark]: Boogie Preprocessor took 23.15 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:08:29,828 INFO L168 Benchmark]: RCFGBuilder took 261.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -158.0 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:08:29,828 INFO L168 Benchmark]: TraceAbstraction took 80297.96 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 32.0 MB). Free memory was 1.1 GB in the beginning and 848.8 MB in the end (delta: 249.5 MB). Peak memory consumption was 281.5 MB. Max. memory is 11.5 GB. [2018-11-18 15:08:29,829 INFO L168 Benchmark]: Witness Printer took 42.47 ms. Allocated memory is still 1.2 GB. Free memory is still 848.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:08:29,831 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.81 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 244.28 ms. Allocated memory is still 1.0 GB. Free memory was 953.7 MB in the beginning and 943.0 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 19.70 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 23.15 ms. Allocated memory is still 1.0 GB. Free memory is still 940.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 261.74 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -158.0 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 80297.96 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 32.0 MB). Free memory was 1.1 GB in the beginning and 848.8 MB in the end (delta: 249.5 MB). Peak memory consumption was 281.5 MB. Max. memory is 11.5 GB. * Witness Printer took 42.47 ms. Allocated memory is still 1.2 GB. Free memory is still 848.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 31]: Loop Invariant [2018-11-18 15:08:29,834 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:08:29,835 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:08:29,835 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:08:29,835 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((index2 <= 4294967296 * (index2 / 4294967296) + 99999 && loop_entered == 0) && 0 == array) && index1 % 4294967296 < 100000) || ((((index1 + 4294967295) % 4294967296 < (index2 + 1) % 4294967296 && 0 == array) && (index2 + 1) % 4294967296 < 100000) && unknown-#memory_int-unknown[array][4 * ((index2 + 1) % 4294967296) + array] % 4294967296 == unknown-#memory_int-unknown[array][4 * ((index1 + 4294967295) % 4294967296) + array] % 4294967296) - InvariantResult [Line: 40]: Loop Invariant [2018-11-18 15:08:29,836 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:08:29,836 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:08:29,837 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int [2018-11-18 15:08:29,837 WARN L1239 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((index2 % 4294967296 < 100000 && 0 == array) && index1 % 4294967296 < index2 % 4294967296) || ((((index1 + 4294967295) % 4294967296 < (index2 + 1) % 4294967296 && 0 == array) && (index2 + 1) % 4294967296 < 100000) && unknown-#memory_int-unknown[array][4 * ((index2 + 1) % 4294967296) + array] % 4294967296 == unknown-#memory_int-unknown[array][4 * ((index1 + 4294967295) % 4294967296) + array] % 4294967296) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. SAFE Result, 80.2s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 86 SDtfs, 50 SDslu, 201 SDs, 0 SdLazy, 154 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 40 SyntacticMatches, 8 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 21 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 15 PreInvPairs, 22 NumberOfFragments, 275 HoareAnnotationTreeSize, 15 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 185 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 77.8s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 71669 SizeOfPredicates, 11 NumberOfNonLiveVariables, 76 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 15/17 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...