java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/sum01_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-11 08:54:51,111 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-11 08:54:51,113 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-11 08:54:51,130 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-11 08:54:51,130 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-11 08:54:51,131 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-11 08:54:51,132 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-11 08:54:51,134 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-11 08:54:51,136 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-11 08:54:51,137 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-11 08:54:51,138 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-11 08:54:51,138 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-11 08:54:51,139 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-11 08:54:51,141 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-11 08:54:51,142 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-11 08:54:51,144 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-11 08:54:51,145 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-11 08:54:51,151 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-11 08:54:51,154 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-11 08:54:51,159 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-11 08:54:51,163 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-11 08:54:51,164 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-11 08:54:51,168 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-11 08:54:51,170 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-11 08:54:51,170 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-11 08:54:51,171 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-11 08:54:51,172 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-11 08:54:51,173 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-11 08:54:51,174 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-11 08:54:51,175 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-11 08:54:51,179 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-11 08:54:51,180 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-11 08:54:51,182 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-11 08:54:51,182 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-11 08:54:51,183 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-11 08:54:51,184 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-11 08:54:51,184 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf [2018-09-11 08:54:51,207 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-11 08:54:51,207 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-11 08:54:51,208 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-11 08:54:51,208 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-11 08:54:51,208 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-11 08:54:51,209 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-11 08:54:51,209 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-11 08:54:51,209 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-11 08:54:51,209 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-11 08:54:51,209 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-11 08:54:51,209 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-11 08:54:51,210 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-11 08:54:51,210 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-11 08:54:51,211 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-11 08:54:51,211 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-11 08:54:51,211 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-11 08:54:51,211 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-11 08:54:51,211 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-11 08:54:51,212 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-11 08:54:51,212 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-11 08:54:51,212 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-11 08:54:51,212 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-11 08:54:51,212 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-11 08:54:51,213 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-11 08:54:51,213 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-11 08:54:51,213 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-11 08:54:51,213 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-11 08:54:51,214 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-11 08:54:51,214 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-11 08:54:51,214 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-11 08:54:51,214 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-11 08:54:51,214 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-11 08:54:51,214 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-11 08:54:51,261 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-11 08:54:51,274 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-11 08:54:51,278 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-11 08:54:51,280 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-11 08:54:51,280 INFO L276 PluginConnector]: CDTParser initialized [2018-09-11 08:54:51,281 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum01_true-unreach-call_true-termination.i [2018-09-11 08:54:51,638 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f3a32c08/7b1c06542a9b4c51a903a0ab536c0f4c/FLAGcc8767d89 [2018-09-11 08:54:51,807 INFO L276 CDTParser]: Found 1 translation units. [2018-09-11 08:54:51,808 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum01_true-unreach-call_true-termination.i [2018-09-11 08:54:51,816 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f3a32c08/7b1c06542a9b4c51a903a0ab536c0f4c/FLAGcc8767d89 [2018-09-11 08:54:51,834 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f3a32c08/7b1c06542a9b4c51a903a0ab536c0f4c [2018-09-11 08:54:51,847 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-11 08:54:51,851 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-11 08:54:51,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-11 08:54:51,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-11 08:54:51,860 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-11 08:54:51,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:51" (1/1) ... [2018-09-11 08:54:51,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd6d764 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:51, skipping insertion in model container [2018-09-11 08:54:51,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 08:54:51" (1/1) ... [2018-09-11 08:54:52,036 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-11 08:54:52,077 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 08:54:52,095 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-11 08:54:52,101 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-11 08:54:52,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:52 WrapperNode [2018-09-11 08:54:52,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-11 08:54:52,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-11 08:54:52,115 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-11 08:54:52,115 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-11 08:54:52,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:52" (1/1) ... [2018-09-11 08:54:52,132 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:52" (1/1) ... [2018-09-11 08:54:52,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-11 08:54:52,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-11 08:54:52,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-11 08:54:52,140 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-11 08:54:52,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:52" (1/1) ... [2018-09-11 08:54:52,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:52" (1/1) ... [2018-09-11 08:54:52,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:52" (1/1) ... [2018-09-11 08:54:52,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:52" (1/1) ... [2018-09-11 08:54:52,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:52" (1/1) ... [2018-09-11 08:54:52,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:52" (1/1) ... [2018-09-11 08:54:52,160 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:52" (1/1) ... [2018-09-11 08:54:52,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-11 08:54:52,162 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-11 08:54:52,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-11 08:54:52,163 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-11 08:54:52,164 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2018-09-11 08:54:52,245 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_sum___true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 08:54:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_sum___true_unreach_call_true_termination_i____VERIFIER_assert [2018-09-11 08:54:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-11 08:54:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-11 08:54:52,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-11 08:54:52,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-11 08:54:52,247 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-11 08:54:52,247 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-11 08:54:52,658 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-11 08:54:52,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:52 BoogieIcfgContainer [2018-09-11 08:54:52,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-11 08:54:52,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-11 08:54:52,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-11 08:54:52,663 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-11 08:54:52,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 08:54:51" (1/3) ... [2018-09-11 08:54:52,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1022025f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 08:54:52, skipping insertion in model container [2018-09-11 08:54:52,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 08:54:52" (2/3) ... [2018-09-11 08:54:52,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1022025f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 08:54:52, skipping insertion in model container [2018-09-11 08:54:52,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 08:54:52" (3/3) ... [2018-09-11 08:54:52,667 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_true-unreach-call_true-termination.i [2018-09-11 08:54:52,678 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-11 08:54:52,686 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-11 08:54:52,737 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-11 08:54:52,738 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-11 08:54:52,738 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-11 08:54:52,738 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-11 08:54:52,738 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-11 08:54:52,738 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-11 08:54:52,738 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-11 08:54:52,738 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-11 08:54:52,739 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-11 08:54:52,756 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-09-11 08:54:52,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-09-11 08:54:52,763 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 08:54:52,764 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 08:54:52,765 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_sum___true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 08:54:52,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1944976115, now seen corresponding path program 1 times [2018-09-11 08:54:52,773 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 08:54:52,774 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-09-11 08:54:52,776 INFO L202 CegarAbsIntRunner]: [0], [3], [5], [11], [15], [19], [32], [36], [37], [38], [40] [2018-09-11 08:54:52,833 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 08:54:52,834 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 08:54:52,921 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 08:54:52,923 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-11 08:54:52,964 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 08:54:53,025 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 33.33% of their original sizes. [2018-09-11 08:54:53,025 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 08:54:53,083 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 08:54:53,085 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 08:54:53,085 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-11 08:54:53,086 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 08:54:53,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-11 08:54:53,099 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-11 08:54:53,100 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-11 08:54:53,102 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2018-09-11 08:54:53,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 08:54:53,281 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2018-09-11 08:54:53,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-11 08:54:53,284 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-09-11 08:54:53,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 08:54:53,292 INFO L225 Difference]: With dead ends: 38 [2018-09-11 08:54:53,292 INFO L226 Difference]: Without dead ends: 17 [2018-09-11 08:54:53,296 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-11 08:54:53,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-09-11 08:54:53,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2018-09-11 08:54:53,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-09-11 08:54:53,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-09-11 08:54:53,337 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-09-11 08:54:53,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 08:54:53,338 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-09-11 08:54:53,338 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-11 08:54:53,338 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-09-11 08:54:53,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-09-11 08:54:53,339 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 08:54:53,339 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 08:54:53,343 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_sum___true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 08:54:53,343 INFO L82 PathProgramCache]: Analyzing trace with hash -434120374, now seen corresponding path program 1 times [2018-09-11 08:54:53,345 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 08:54:53,345 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 13 with the following transitions: [2018-09-11 08:54:53,346 INFO L202 CegarAbsIntRunner]: [0], [3], [5], [11], [15], [19], [23], [26], [36], [37], [38], [40] [2018-09-11 08:54:53,350 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 08:54:53,350 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 08:54:53,410 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-09-11 08:54:53,410 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 4 variables. [2018-09-11 08:54:53,427 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-09-11 08:54:53,480 INFO L232 lantSequenceWeakener]: Weakened 2 states. On average, predicates are now at 41.67% of their original sizes. [2018-09-11 08:54:53,480 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-09-11 08:54:53,677 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-09-11 08:54:53,678 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-11 08:54:53,678 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-11 08:54:53,678 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-11 08:54:53,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-11 08:54:53,679 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-11 08:54:53,679 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-11 08:54:53,680 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 7 states. [2018-09-11 08:54:53,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-11 08:54:53,948 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-09-11 08:54:53,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-11 08:54:53,948 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 12 [2018-09-11 08:54:53,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-11 08:54:53,950 INFO L225 Difference]: With dead ends: 21 [2018-09-11 08:54:53,950 INFO L226 Difference]: Without dead ends: 16 [2018-09-11 08:54:53,952 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2018-09-11 08:54:53,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-09-11 08:54:53,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-09-11 08:54:53,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-09-11 08:54:53,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-09-11 08:54:53,958 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2018-09-11 08:54:53,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-11 08:54:53,958 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-09-11 08:54:53,958 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-11 08:54:53,958 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-09-11 08:54:53,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-11 08:54:53,959 INFO L368 BasicCegarLoop]: Found error trace [2018-09-11 08:54:53,959 INFO L376 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-11 08:54:53,960 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_sum___true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-11 08:54:53,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1147228183, now seen corresponding path program 1 times [2018-09-11 08:54:53,960 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-09-11 08:54:53,960 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-09-11 08:54:53,961 INFO L202 CegarAbsIntRunner]: [0], [3], [5], [11], [15], [19], [23], [26], [28], [30], [36], [37], [38], [40] [2018-09-11 08:54:53,962 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-09-11 08:54:53,963 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-09-11 08:54:54,115 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-11 08:54:54,115 INFO L272 AbstractInterpreter]: Visited 14 different actions 141 times. Merged at 4 different actions 64 times. Widened at 1 different actions 12 times. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2018-09-11 08:54:54,145 INFO L443 BasicCegarLoop]: Counterexample might be feasible [2018-09-11 08:54:54,160 WARN L209 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-09-11 08:54:54,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 08:54:54 BoogieIcfgContainer [2018-09-11 08:54:54,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-11 08:54:54,162 INFO L168 Benchmark]: Toolchain (without parser) took 2314.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -746.4 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-09-11 08:54:54,164 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 08:54:54,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-11 08:54:54,165 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.73 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 08:54:54,166 INFO L168 Benchmark]: Boogie Preprocessor took 22.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-11 08:54:54,167 INFO L168 Benchmark]: RCFGBuilder took 496.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -817.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-09-11 08:54:54,168 INFO L168 Benchmark]: TraceAbstraction took 1501.16 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 60.2 MB). Peak memory consumption was 60.2 MB. Max. memory is 7.1 GB. [2018-09-11 08:54:54,172 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.58 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 24.73 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.15 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 496.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 778.0 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -817.1 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1501.16 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 60.2 MB). Peak memory consumption was 60.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L12] int i, n=__VERIFIER_nondet_int(), sn=0; [L12] int i, n=__VERIFIER_nondet_int(), sn=0; [L12] int i, n=__VERIFIER_nondet_int(), sn=0; [L13] COND FALSE !(!(n < 1000 && n >= -1000)) [L14] i=1 [L14] COND TRUE i<=n [L15] sn = sn + (2) [L14] i++ [L14] i++ [L14] COND FALSE !(i<=n) [L17] CALL __VERIFIER_assert(sn==n*(2) || sn == 0) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. UNKNOWN Result, 1.4s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 11 SDslu, 62 SDs, 0 SdLazy, 30 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.4s AbstIntTime, 3 AbstIntIterations, 2 AbstIntStrong, 0.9404761904761905 AbsIntWeakeningRatio, 0.5714285714285714 AbsIntAvgWeakeningVarsNumRemoved, 1.380952380952381 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum01_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-11_08-54-54-185.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/sum01_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-11_08-54-54-185.csv Received shutdown request...