/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-acceleration/phases_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:07:59,323 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:07:59,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:07:59,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:07:59,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:07:59,349 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:07:59,351 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:07:59,364 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:07:59,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:07:59,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:07:59,370 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:07:59,372 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:07:59,372 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:07:59,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:07:59,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:07:59,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:07:59,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:07:59,384 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:07:59,386 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:07:59,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:07:59,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:07:59,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:07:59,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:07:59,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:07:59,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:07:59,407 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:07:59,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:07:59,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:07:59,410 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-23 22:07:59,435 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:07:59,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:07:59,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:07:59,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:07:59,438 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:07:59,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:07:59,438 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:07:59,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:07:59,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:07:59,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:07:59,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:07:59,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:07:59,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:07:59,441 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:07:59,441 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:07:59,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:07:59,442 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:07:59,442 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:07:59,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:07:59,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:07:59,443 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:07:59,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:07:59,444 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:07:59,444 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:07:59,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:07:59,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:07:59,445 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:07:59,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:07:59,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:07:59,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:07:59,709 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:07:59,722 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:07:59,728 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:07:59,730 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:07:59,730 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:07:59,731 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2019-11-23 22:07:59,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dd19e777/dad617119ba34ac59bbc9198b24bdbeb/FLAG31bb02e44 [2019-11-23 22:08:00,311 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:08:00,312 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_2-1.c [2019-11-23 22:08:00,319 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dd19e777/dad617119ba34ac59bbc9198b24bdbeb/FLAG31bb02e44 [2019-11-23 22:08:00,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7dd19e777/dad617119ba34ac59bbc9198b24bdbeb [2019-11-23 22:08:00,704 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:08:00,706 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:08:00,707 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:08:00,707 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:08:00,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:08:00,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:08:00" (1/1) ... [2019-11-23 22:08:00,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ffb995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:00, skipping insertion in model container [2019-11-23 22:08:00,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:08:00" (1/1) ... [2019-11-23 22:08:00,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:08:00,740 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:08:00,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:08:00,943 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:08:00,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:08:00,984 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:08:00,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:00 WrapperNode [2019-11-23 22:08:00,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:08:00,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:08:00,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:08:00,987 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:08:00,997 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:00" (1/1) ... [2019-11-23 22:08:01,005 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:00" (1/1) ... [2019-11-23 22:08:01,148 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:08:01,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:08:01,149 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:08:01,149 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:08:01,158 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:00" (1/1) ... [2019-11-23 22:08:01,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:00" (1/1) ... [2019-11-23 22:08:01,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:00" (1/1) ... [2019-11-23 22:08:01,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:00" (1/1) ... [2019-11-23 22:08:01,167 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:00" (1/1) ... [2019-11-23 22:08:01,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:00" (1/1) ... [2019-11-23 22:08:01,172 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:00" (1/1) ... [2019-11-23 22:08:01,173 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:08:01,174 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:08:01,174 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:08:01,174 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:08:01,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:00" (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 [2019-11-23 22:08:01,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:08:01,236 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:08:01,421 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:08:01,421 INFO L284 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-23 22:08:01,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:08:01 BoogieIcfgContainer [2019-11-23 22:08:01,423 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:08:01,424 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:08:01,424 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:08:01,427 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:08:01,427 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:08:00" (1/3) ... [2019-11-23 22:08:01,428 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@381f7e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:08:01, skipping insertion in model container [2019-11-23 22:08:01,428 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:08:00" (2/3) ... [2019-11-23 22:08:01,429 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@381f7e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:08:01, skipping insertion in model container [2019-11-23 22:08:01,429 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:08:01" (3/3) ... [2019-11-23 22:08:01,431 INFO L109 eAbstractionObserver]: Analyzing ICFG phases_2-1.c [2019-11-23 22:08:01,441 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:08:01,448 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:08:01,459 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:08:01,484 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:08:01,485 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:08:01,485 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:08:01,485 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:08:01,485 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:08:01,485 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:08:01,486 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:08:01,486 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:08:01,498 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-23 22:08:01,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-23 22:08:01,504 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:08:01,505 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-23 22:08:01,505 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:08:01,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:08:01,512 INFO L82 PathProgramCache]: Analyzing trace with hash 922384074, now seen corresponding path program 1 times [2019-11-23 22:08:01,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:08:01,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787564503] [2019-11-23 22:08:01,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:08:01,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:08:01,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:08:01,623 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787564503] [2019-11-23 22:08:01,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:08:01,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 22:08:01,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830888657] [2019-11-23 22:08:01,630 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-23 22:08:01,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:08:01,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-23 22:08:01,641 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-23 22:08:01,642 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2019-11-23 22:08:01,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:08:01,656 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2019-11-23 22:08:01,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-23 22:08:01,657 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2019-11-23 22:08:01,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:08:01,666 INFO L225 Difference]: With dead ends: 18 [2019-11-23 22:08:01,666 INFO L226 Difference]: Without dead ends: 8 [2019-11-23 22:08:01,670 INFO L630 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 [2019-11-23 22:08:01,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2019-11-23 22:08:01,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2019-11-23 22:08:01,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2019-11-23 22:08:01,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2019-11-23 22:08:01,705 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2019-11-23 22:08:01,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:08:01,706 INFO L462 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2019-11-23 22:08:01,706 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-23 22:08:01,706 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2019-11-23 22:08:01,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-11-23 22:08:01,707 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:08:01,707 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-11-23 22:08:01,707 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:08:01,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:08:01,708 INFO L82 PathProgramCache]: Analyzing trace with hash 922086164, now seen corresponding path program 1 times [2019-11-23 22:08:01,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:08:01,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389259091] [2019-11-23 22:08:01,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:08:01,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-23 22:08:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-23 22:08:01,752 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-23 22:08:01,753 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-23 22:08:01,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:08:01 BoogieIcfgContainer [2019-11-23 22:08:01,771 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:08:01,774 INFO L168 Benchmark]: Toolchain (without parser) took 1067.27 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 102.1 MB in the beginning and 152.5 MB in the end (delta: -50.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-11-23 22:08:01,775 INFO L168 Benchmark]: CDTParser took 0.54 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-11-23 22:08:01,776 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.44 ms. Allocated memory is still 145.8 MB. Free memory was 101.9 MB in the beginning and 92.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-11-23 22:08:01,777 INFO L168 Benchmark]: Boogie Procedure Inliner took 161.25 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 92.5 MB in the beginning and 184.4 MB in the end (delta: -91.9 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-11-23 22:08:01,778 INFO L168 Benchmark]: Boogie Preprocessor took 24.96 ms. Allocated memory is still 205.5 MB. Free memory was 184.4 MB in the beginning and 182.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-11-23 22:08:01,779 INFO L168 Benchmark]: RCFGBuilder took 249.14 ms. Allocated memory is still 205.5 MB. Free memory was 182.7 MB in the beginning and 172.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. [2019-11-23 22:08:01,780 INFO L168 Benchmark]: TraceAbstraction took 347.50 ms. Allocated memory is still 205.5 MB. Free memory was 172.1 MB in the beginning and 152.5 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2019-11-23 22:08:01,784 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.54 ms. Allocated memory is still 145.8 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 279.44 ms. Allocated memory is still 145.8 MB. Free memory was 101.9 MB in the beginning and 92.5 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 161.25 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 92.5 MB in the beginning and 184.4 MB in the end (delta: -91.9 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.96 ms. Allocated memory is still 205.5 MB. Free memory was 184.4 MB in the beginning and 182.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 249.14 ms. Allocated memory is still 205.5 MB. Free memory was 182.7 MB in the beginning and 172.7 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 347.50 ms. Allocated memory is still 205.5 MB. Free memory was 172.1 MB in the beginning and 152.5 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] unsigned int x = 1; [L14] unsigned int y = __VERIFIER_nondet_uint(); [L16] COND FALSE !(!(y > 0)) [L18] COND FALSE !(x < y) [L6] COND TRUE !(cond) [L7] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 13 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=11occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...