java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-tiling/skippedu_false-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a-m [2018-01-30 01:07:46,206 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 01:07:46,207 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 01:07:46,219 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 01:07:46,219 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 01:07:46,219 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 01:07:46,220 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 01:07:46,222 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 01:07:46,224 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 01:07:46,224 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 01:07:46,224 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 01:07:46,225 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 01:07:46,225 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 01:07:46,227 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 01:07:46,228 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 01:07:46,229 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 01:07:46,230 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 01:07:46,231 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 01:07:46,232 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 01:07:46,238 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 01:07:46,240 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-01-30 01:07:46,247 INFO L98 SettingsManager]: Beginning loading settings from /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-30 01:07:46,255 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 01:07:46,255 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 01:07:46,255 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 01:07:46,255 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 01:07:46,255 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 01:07:46,258 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 01:07:46,258 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 01:07:46,259 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 01:07:46,259 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 01:07:46,259 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 01:07:46,259 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 01:07:46,259 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 01:07:46,259 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-01-30 01:07:46,259 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 01:07:46,259 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-01-30 01:07:46,259 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 01:07:46,259 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-01-30 01:07:46,259 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-01-30 01:07:46,260 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 01:07:46,260 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 01:07:46,260 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 01:07:46,260 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 01:07:46,260 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 01:07:46,260 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 01:07:46,260 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 01:07:46,260 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 01:07:46,260 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 01:07:46,260 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 01:07:46,260 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 01:07:46,261 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 01:07:46,261 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 01:07:46,261 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 01:07:46,261 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 01:07:46,261 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 01:07:46,282 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 01:07:46,289 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 01:07:46,291 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 01:07:46,292 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 01:07:46,292 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 01:07:46,293 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/skippedu_false-unreach-call.i [2018-01-30 01:07:46,356 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 01:07:46,357 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-30 01:07:46,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 01:07:46,358 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 01:07:46,361 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 01:07:46,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:07:46" (1/1) ... [2018-01-30 01:07:46,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@563b4aea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:07:46, skipping insertion in model container [2018-01-30 01:07:46,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:07:46" (1/1) ... [2018-01-30 01:07:46,372 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:07:46,382 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:07:46,449 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:07:46,457 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:07:46,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:07:46 WrapperNode [2018-01-30 01:07:46,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 01:07:46,461 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 01:07:46,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 01:07:46,461 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 01:07:46,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:07:46" (1/1) ... [2018-01-30 01:07:46,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:07:46" (1/1) ... [2018-01-30 01:07:46,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:07:46" (1/1) ... [2018-01-30 01:07:46,474 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:07:46" (1/1) ... [2018-01-30 01:07:46,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:07:46" (1/1) ... [2018-01-30 01:07:46,477 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:07:46" (1/1) ... [2018-01-30 01:07:46,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:07:46" (1/1) ... [2018-01-30 01:07:46,478 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 01:07:46,478 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 01:07:46,478 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 01:07:46,478 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 01:07:46,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:07:46" (1/1) ... No working directory specified, using /home/daniel/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 [2018-01-30 01:07:46,521 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 01:07:46,521 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 01:07:46,521 INFO L136 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-01-30 01:07:46,521 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 01:07:46,521 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-01-30 01:07:46,521 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-01-30 01:07:46,521 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-01-30 01:07:46,521 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 01:07:46,521 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 01:07:46,521 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 01:07:46,521 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 01:07:46,852 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 01:07:46,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:07:46 BoogieIcfgContainer [2018-01-30 01:07:46,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 01:07:46,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 01:07:46,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 01:07:46,855 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 01:07:46,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 01:07:46" (1/3) ... [2018-01-30 01:07:46,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7623cac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:07:46, skipping insertion in model container [2018-01-30 01:07:46,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:07:46" (2/3) ... [2018-01-30 01:07:46,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7623cac0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:07:46, skipping insertion in model container [2018-01-30 01:07:46,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:07:46" (3/3) ... [2018-01-30 01:07:46,857 INFO L107 eAbstractionObserver]: Analyzing ICFG skippedu_false-unreach-call.i [2018-01-30 01:07:46,868 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 01:07:46,873 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-01-30 01:07:46,901 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 01:07:46,901 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 01:07:46,901 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 01:07:46,901 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 01:07:46,901 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 01:07:46,901 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 01:07:46,902 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 01:07:46,902 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 01:07:46,902 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 01:07:46,914 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states. [2018-01-30 01:07:46,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-01-30 01:07:46,926 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:07:46,927 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:07:46,927 INFO L371 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:07:46,930 INFO L82 PathProgramCache]: Analyzing trace with hash -243013997, now seen corresponding path program 1 times [2018-01-30 01:07:46,931 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:07:46,932 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:07:46,962 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:07:46,962 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:07:46,962 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:07:46,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:07:47,000 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:07:47,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:07:47,030 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:07:47,031 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-30 01:07:47,032 INFO L409 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-01-30 01:07:47,040 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-01-30 01:07:47,040 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-01-30 01:07:47,041 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 2 states. [2018-01-30 01:07:47,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:07:47,054 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2018-01-30 01:07:47,055 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-01-30 01:07:47,055 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-01-30 01:07:47,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:07:47,061 INFO L225 Difference]: With dead ends: 60 [2018-01-30 01:07:47,061 INFO L226 Difference]: Without dead ends: 36 [2018-01-30 01:07:47,063 INFO L553 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 [2018-01-30 01:07:47,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2018-01-30 01:07:47,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2018-01-30 01:07:47,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2018-01-30 01:07:47,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 40 transitions. [2018-01-30 01:07:47,083 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 40 transitions. Word has length 22 [2018-01-30 01:07:47,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:07:47,084 INFO L432 AbstractCegarLoop]: Abstraction has 36 states and 40 transitions. [2018-01-30 01:07:47,084 INFO L433 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-01-30 01:07:47,084 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 40 transitions. [2018-01-30 01:07:47,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-30 01:07:47,085 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:07:47,085 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:07:47,085 INFO L371 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:07:47,085 INFO L82 PathProgramCache]: Analyzing trace with hash 631271501, now seen corresponding path program 1 times [2018-01-30 01:07:47,085 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:07:47,085 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:07:47,086 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:07:47,086 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:07:47,086 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:07:47,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:07:47,098 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:07:47,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:07:47,402 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:07:47,403 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 01:07:47,404 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 01:07:47,404 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 01:07:47,404 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 01:07:47,404 INFO L87 Difference]: Start difference. First operand 36 states and 40 transitions. Second operand 4 states. [2018-01-30 01:07:47,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:07:47,526 INFO L93 Difference]: Finished difference Result 56 states and 63 transitions. [2018-01-30 01:07:47,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-30 01:07:47,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 23 [2018-01-30 01:07:47,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:07:47,528 INFO L225 Difference]: With dead ends: 56 [2018-01-30 01:07:47,528 INFO L226 Difference]: Without dead ends: 43 [2018-01-30 01:07:47,529 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:07:47,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-01-30 01:07:47,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 38. [2018-01-30 01:07:47,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-01-30 01:07:47,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2018-01-30 01:07:47,535 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 23 [2018-01-30 01:07:47,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:07:47,535 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2018-01-30 01:07:47,535 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 01:07:47,535 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2018-01-30 01:07:47,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-01-30 01:07:47,536 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:07:47,536 INFO L350 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:07:47,536 INFO L371 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0AssertViolation]=== [2018-01-30 01:07:47,536 INFO L82 PathProgramCache]: Analyzing trace with hash -958936353, now seen corresponding path program 1 times [2018-01-30 01:07:47,536 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:07:47,536 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:07:47,537 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:07:47,537 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:07:47,537 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:07:47,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 01:07:47,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-01-30 01:07:47,600 INFO L409 BasicCegarLoop]: Counterexample might be feasible [2018-01-30 01:07:47,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 01:07:47 BoogieIcfgContainer [2018-01-30 01:07:47,619 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-30 01:07:47,620 INFO L168 Benchmark]: Toolchain (without parser) took 1263.02 ms. Allocated memory was 149.4 MB in the beginning and 195.6 MB in the end (delta: 46.1 MB). Free memory was 114.5 MB in the beginning and 160.0 MB in the end (delta: -45.5 MB). Peak memory consumption was 630.2 kB. Max. memory is 5.3 GB. [2018-01-30 01:07:47,620 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 149.4 MB. Free memory is still 119.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 01:07:47,621 INFO L168 Benchmark]: CACSL2BoogieTranslator took 102.98 ms. Allocated memory is still 149.4 MB. Free memory was 114.3 MB in the beginning and 106.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 5.3 GB. [2018-01-30 01:07:47,621 INFO L168 Benchmark]: Boogie Preprocessor took 17.25 ms. Allocated memory is still 149.4 MB. Free memory was 106.1 MB in the beginning and 104.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. [2018-01-30 01:07:47,621 INFO L168 Benchmark]: RCFGBuilder took 374.23 ms. Allocated memory is still 149.4 MB. Free memory was 104.5 MB in the beginning and 91.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 5.3 GB. [2018-01-30 01:07:47,621 INFO L168 Benchmark]: TraceAbstraction took 766.37 ms. Allocated memory was 149.4 MB in the beginning and 195.6 MB in the end (delta: 46.1 MB). Free memory was 91.3 MB in the beginning and 160.0 MB in the end (delta: -68.7 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 01:07:47,626 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 149.4 MB. Free memory is still 119.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 102.98 ms. Allocated memory is still 149.4 MB. Free memory was 114.3 MB in the beginning and 106.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 17.25 ms. Allocated memory is still 149.4 MB. Free memory was 106.1 MB in the beginning and 104.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 5.3 GB. * RCFGBuilder took 374.23 ms. Allocated memory is still 149.4 MB. Free memory was 104.5 MB in the beginning and 91.7 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 766.37 ms. Allocated memory was 149.4 MB in the beginning and 195.6 MB in the end (delta: 46.1 MB). Free memory was 91.3 MB in the beginning and 160.0 MB in the end (delta: -68.7 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: IVAL [\old(SIZE)=2, SIZE=2] [L8] int SIZE; VAL [\old(SIZE)=0, SIZE=0] [L12] SIZE = __VERIFIER_nondet_int() VAL [\old(SIZE)=0, __VERIFIER_nondet_int()=2, SIZE=2] [L13] COND TRUE SIZE > 1 VAL [\old(SIZE)=0, SIZE=2] [L15] int i; VAL [\old(SIZE)=0, SIZE=2] [L16] int a[SIZE]; VAL [\old(SIZE)=0, SIZE=2] [L18] COND FALSE !(SIZE % 2 != 0) VAL [\old(SIZE)=0, SIZE=2] [L21] i = 1 VAL [\old(SIZE)=0, i=1, SIZE=2] [L21] COND TRUE i <= SIZE/2 VAL [\old(SIZE)=0, i=1, SIZE=2] [L23] COND FALSE !(a[2*i-2] > i) VAL [\old(SIZE)=0, i=1, SIZE=2] [L27] COND FALSE !(a[2*i-1] > i) VAL [\old(SIZE)=0, i=1, SIZE=2] [L21] i++ VAL [\old(SIZE)=0, i=2, SIZE=2] [L21] COND FALSE !(i <= SIZE/2) VAL [\old(SIZE)=0, i=2, SIZE=2] [L33] i = 0 VAL [\old(SIZE)=0, i=0, SIZE=2] [L33] COND TRUE i < SIZE VAL [\old(SIZE)=0, i=0, SIZE=2] [L35] CALL __VERIFIER_assert( a[i] <= i ) VAL [\old(cond)=0, \old(SIZE)=0, SIZE=2] [L5] COND TRUE !(cond) VAL [\old(cond)=0, \old(SIZE)=0, cond=0, SIZE=2] [L5] __VERIFIER_error() VAL [\old(cond)=0, \old(SIZE)=0, cond=0, SIZE=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 42 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 75 SDtfs, 45 SDslu, 23 SDs, 0 SdLazy, 29 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 1849 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/skippedu_false-unreach-call.i_svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-30_01-07-47-632.csv Written .csv to /home/daniel/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/skippedu_false-unreach-call.i_svcomp-Reach-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-30_01-07-47-632.csv Received shutdown request...