java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/loop-acceleration/phases_false-unreach-call2_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-24 10:48:34,538 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-24 10:48:34,540 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-24 10:48:34,556 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-24 10:48:34,556 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-24 10:48:34,561 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-24 10:48:34,563 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-24 10:48:34,566 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-24 10:48:34,567 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-24 10:48:34,568 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-24 10:48:34,570 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-24 10:48:34,570 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-24 10:48:34,571 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-24 10:48:34,574 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-24 10:48:34,577 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-24 10:48:34,583 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-24 10:48:34,583 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-24 10:48:34,588 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-24 10:48:34,590 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-24 10:48:34,595 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-24 10:48:34,596 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-24 10:48:34,597 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-24 10:48:34,601 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-24 10:48:34,602 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-24 10:48:34,602 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-24 10:48:34,604 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-24 10:48:34,605 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-24 10:48:34,606 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-24 10:48:34,608 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-24 10:48:34,611 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-24 10:48:34,611 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-24 10:48:34,611 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-24 10:48:34,612 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-24 10:48:34,612 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-24 10:48:34,615 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-24 10:48:34,615 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-24 10:48:34,616 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-07-24 10:48:34,634 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-24 10:48:34,634 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-24 10:48:34,635 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-24 10:48:34,635 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-24 10:48:34,636 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-24 10:48:34,636 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-24 10:48:34,636 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-24 10:48:34,636 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-24 10:48:34,637 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-24 10:48:34,637 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-24 10:48:34,637 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-24 10:48:34,638 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-24 10:48:34,638 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-24 10:48:34,638 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-24 10:48:34,638 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-24 10:48:34,639 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-24 10:48:34,639 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-24 10:48:34,639 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-24 10:48:34,639 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-24 10:48:34,641 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-24 10:48:34,641 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-24 10:48:34,641 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-24 10:48:34,641 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-24 10:48:34,642 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-24 10:48:34,642 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-24 10:48:34,642 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-24 10:48:34,642 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-24 10:48:34,642 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-07-24 10:48:34,643 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-24 10:48:34,643 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-24 10:48:34,643 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-24 10:48:34,643 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-24 10:48:34,643 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-24 10:48:34,699 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-24 10:48:34,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-24 10:48:34,722 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-24 10:48:34,723 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-24 10:48:34,724 INFO L276 PluginConnector]: CDTParser initialized [2018-07-24 10:48:34,725 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_false-unreach-call2_false-termination.i [2018-07-24 10:48:35,072 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/174b29353/b9544d8485d0493b9152bfd0d3677628/FLAGe291f9d95 [2018-07-24 10:48:35,192 INFO L276 CDTParser]: Found 1 translation units. [2018-07-24 10:48:35,192 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_false-unreach-call2_false-termination.i [2018-07-24 10:48:35,197 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/174b29353/b9544d8485d0493b9152bfd0d3677628/FLAGe291f9d95 [2018-07-24 10:48:35,211 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/174b29353/b9544d8485d0493b9152bfd0d3677628 [2018-07-24 10:48:35,224 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-24 10:48:35,226 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-24 10:48:35,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-24 10:48:35,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-24 10:48:35,233 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-24 10:48:35,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:48:35" (1/1) ... [2018-07-24 10:48:35,238 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e46634 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:48:35, skipping insertion in model container [2018-07-24 10:48:35,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.07 10:48:35" (1/1) ... [2018-07-24 10:48:35,388 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-24 10:48:35,426 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:48:35,442 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-24 10:48:35,447 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-24 10:48:35,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:48:35 WrapperNode [2018-07-24 10:48:35,461 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-24 10:48:35,462 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-24 10:48:35,462 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-24 10:48:35,462 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-24 10:48:35,471 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:48:35" (1/1) ... [2018-07-24 10:48:35,478 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:48:35" (1/1) ... [2018-07-24 10:48:35,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-24 10:48:35,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-24 10:48:35,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-24 10:48:35,485 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-24 10:48:35,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:48:35" (1/1) ... [2018-07-24 10:48:35,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:48:35" (1/1) ... [2018-07-24 10:48:35,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:48:35" (1/1) ... [2018-07-24 10:48:35,496 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:48:35" (1/1) ... [2018-07-24 10:48:35,498 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:48:35" (1/1) ... [2018-07-24 10:48:35,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:48:35" (1/1) ... [2018-07-24 10:48:35,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:48:35" (1/1) ... [2018-07-24 10:48:35,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-24 10:48:35,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-24 10:48:35,507 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-24 10:48:35,507 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-24 10:48:35,508 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:48:35" (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 [2018-07-24 10:48:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-24 10:48:35,586 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-24 10:48:35,586 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-24 10:48:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-24 10:48:35,587 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-24 10:48:35,587 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-24 10:48:35,588 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_phases_false_unreach_call__false_termination_i____VERIFIER_assert [2018-07-24 10:48:35,588 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_phases_false_unreach_call__false_termination_i____VERIFIER_assert [2018-07-24 10:48:35,928 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-24 10:48:35,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:48:35 BoogieIcfgContainer [2018-07-24 10:48:35,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-24 10:48:35,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-24 10:48:35,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-24 10:48:35,937 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-24 10:48:35,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.07 10:48:35" (1/3) ... [2018-07-24 10:48:35,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a705bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:48:35, skipping insertion in model container [2018-07-24 10:48:35,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.07 10:48:35" (2/3) ... [2018-07-24 10:48:35,939 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14a705bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.07 10:48:35, skipping insertion in model container [2018-07-24 10:48:35,939 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.07 10:48:35" (3/3) ... [2018-07-24 10:48:35,942 INFO L112 eAbstractionObserver]: Analyzing ICFG phases_false-unreach-call2_false-termination.i [2018-07-24 10:48:35,968 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-24 10:48:35,977 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-24 10:48:36,067 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-24 10:48:36,068 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-24 10:48:36,068 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-24 10:48:36,068 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-24 10:48:36,075 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-24 10:48:36,075 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-24 10:48:36,075 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-24 10:48:36,075 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-24 10:48:36,075 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-24 10:48:36,096 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-07-24 10:48:36,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-24 10:48:36,112 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:48:36,113 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:48:36,113 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_phases_false_unreach_call__false_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:48:36,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1994259344, now seen corresponding path program 1 times [2018-07-24 10:48:36,120 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:48:36,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:48:36,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:48:36,171 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:48:36,171 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:48:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-24 10:48:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-24 10:48:36,233 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-24 10:48:36,234 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-24 10:48:36,234 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-24 10:48:36,238 INFO L450 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-07-24 10:48:36,249 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-07-24 10:48:36,250 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-24 10:48:36,252 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-07-24 10:48:36,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-24 10:48:36,272 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-07-24 10:48:36,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-07-24 10:48:36,274 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-07-24 10:48:36,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-24 10:48:36,283 INFO L225 Difference]: With dead ends: 31 [2018-07-24 10:48:36,284 INFO L226 Difference]: Without dead ends: 14 [2018-07-24 10:48:36,287 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-07-24 10:48:36,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-07-24 10:48:36,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-07-24 10:48:36,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-07-24 10:48:36,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-07-24 10:48:36,328 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2018-07-24 10:48:36,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-24 10:48:36,328 INFO L471 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-07-24 10:48:36,328 INFO L472 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-07-24 10:48:36,329 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-07-24 10:48:36,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-07-24 10:48:36,329 INFO L345 BasicCegarLoop]: Found error trace [2018-07-24 10:48:36,330 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-24 10:48:36,330 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loop_acceleration_phases_false_unreach_call__false_termination_i____VERIFIER_assertErr0AssertViolationERROR_FUNCTION]=== [2018-07-24 10:48:36,330 INFO L82 PathProgramCache]: Analyzing trace with hash -2119643788, now seen corresponding path program 1 times [2018-07-24 10:48:36,330 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-07-24 10:48:36,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:48:36,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-24 10:48:36,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-24 10:48:36,332 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-24 10:48:36,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-24 10:48:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-07-24 10:48:36,375 INFO L419 BasicCegarLoop]: Counterexample might be feasible [2018-07-24 10:48:36,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.07 10:48:36 BoogieIcfgContainer [2018-07-24 10:48:36,400 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-24 10:48:36,401 INFO L168 Benchmark]: Toolchain (without parser) took 1176.15 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -755.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2018-07-24 10:48:36,403 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-07-24 10:48:36,404 INFO L168 Benchmark]: CACSL2BoogieTranslator took 234.09 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. [2018-07-24 10:48:36,405 INFO L168 Benchmark]: Boogie Procedure Inliner took 22.40 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. [2018-07-24 10:48:36,405 INFO L168 Benchmark]: Boogie Preprocessor took 22.06 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. [2018-07-24 10:48:36,406 INFO L168 Benchmark]: RCFGBuilder took 422.86 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -783.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-07-24 10:48:36,407 INFO L168 Benchmark]: TraceAbstraction took 469.51 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. [2018-07-24 10:48:36,412 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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. * CACSL2BoogieTranslator took 234.09 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 22.40 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 22.06 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 422.86 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -783.9 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 469.51 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 17.6 MB). Peak memory consumption was 17.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] unsigned int x = 1; [L12] unsigned int y = __VERIFIER_nondet_uint(); [L13] COND FALSE !(!(y > 0)) VAL [x=1, y=1] [L14] COND FALSE !(x < y) VAL [x=1, y=1] [L21] CALL __VERIFIER_assert(x != y) VAL [\old(cond)=0] [L5] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/phases_false-unreach-call2_false-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-24_10-48-36-424.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/phases_false-unreach-call2_false-termination.i_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-24_10-48-36-424.csv Received shutdown request...