java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/trex03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 19:21:42,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 19:21:42,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 19:21:42,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-03 19:21:42,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-03 19:21:42,671 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-03 19:21:42,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-03 19:21:42,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-03 19:21:42,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-03 19:21:42,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-03 19:21:42,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-03 19:21:42,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-03 19:21:42,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 19:21:42,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 19:21:42,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 19:21:42,682 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 19:21:42,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 19:21:42,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 19:21:42,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 19:21:42,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 19:21:42,689 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 19:21:42,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 19:21:42,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 19:21:42,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 19:21:42,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 19:21:42,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 19:21:42,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 19:21:42,703 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 19:21:42,704 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 [2019-09-03 19:21:42,718 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 19:21:42,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 19:21:42,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-03 19:21:42,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-03 19:21:42,720 INFO L138 SettingsManager]: * Use SBE=true [2019-09-03 19:21:42,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 19:21:42,721 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 19:21:42,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-03 19:21:42,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 19:21:42,721 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 19:21:42,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 19:21:42,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 19:21:42,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 19:21:42,722 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 19:21:42,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 19:21:42,722 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-03 19:21:42,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 19:21:42,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 19:21:42,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 19:21:42,723 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-03 19:21:42,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-03 19:21:42,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 19:21:42,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 19:21:42,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 19:21:42,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-03 19:21:42,724 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-03 19:21:42,725 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 19:21:42,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 19:21:42,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-03 19:21:42,753 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 19:21:42,766 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 19:21:42,770 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 19:21:42,771 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 19:21:42,771 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 19:21:42,772 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex03-1.c [2019-09-03 19:21:42,829 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/052a7c561/0f4ddb69bee549dbbcea0ebc0e9ba9d6/FLAG9781413d4 [2019-09-03 19:21:43,249 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 19:21:43,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex03-1.c [2019-09-03 19:21:43,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/052a7c561/0f4ddb69bee549dbbcea0ebc0e9ba9d6/FLAG9781413d4 [2019-09-03 19:21:43,645 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/052a7c561/0f4ddb69bee549dbbcea0ebc0e9ba9d6 [2019-09-03 19:21:43,658 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 19:21:43,659 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 19:21:43,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 19:21:43,660 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 19:21:43,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 19:21:43,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 07:21:43" (1/1) ... [2019-09-03 19:21:43,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ad31ffa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:21:43, skipping insertion in model container [2019-09-03 19:21:43,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 07:21:43" (1/1) ... [2019-09-03 19:21:43,676 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 19:21:43,693 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 19:21:43,859 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 19:21:43,864 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 19:21:43,883 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 19:21:43,898 INFO L192 MainTranslator]: Completed translation [2019-09-03 19:21:43,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:21:43 WrapperNode [2019-09-03 19:21:43,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 19:21:43,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 19:21:43,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 19:21:43,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 19:21:44,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:21:43" (1/1) ... [2019-09-03 19:21:44,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:21:43" (1/1) ... [2019-09-03 19:21:44,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:21:43" (1/1) ... [2019-09-03 19:21:44,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:21:43" (1/1) ... [2019-09-03 19:21:44,016 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:21:43" (1/1) ... [2019-09-03 19:21:44,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:21:43" (1/1) ... [2019-09-03 19:21:44,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:21:43" (1/1) ... [2019-09-03 19:21:44,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 19:21:44,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 19:21:44,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 19:21:44,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 19:21:44,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:21:43" (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 [2019-09-03 19:21:44,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 19:21:44,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 19:21:44,090 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 19:21:44,091 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 19:21:44,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 19:21:44,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 19:21:44,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-09-03 19:21:44,091 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-03 19:21:44,091 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 19:21:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 19:21:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 19:21:44,294 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 19:21:44,295 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-03 19:21:44,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 07:21:44 BoogieIcfgContainer [2019-09-03 19:21:44,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 19:21:44,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-03 19:21:44,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-03 19:21:44,313 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-03 19:21:44,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.09 07:21:43" (1/3) ... [2019-09-03 19:21:44,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@306b5350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 07:21:44, skipping insertion in model container [2019-09-03 19:21:44,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 07:21:43" (2/3) ... [2019-09-03 19:21:44,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@306b5350 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 07:21:44, skipping insertion in model container [2019-09-03 19:21:44,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 07:21:44" (3/3) ... [2019-09-03 19:21:44,325 INFO L109 eAbstractionObserver]: Analyzing ICFG trex03-1.c [2019-09-03 19:21:44,344 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-03 19:21:44,363 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-03 19:21:44,392 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-03 19:21:44,418 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-03 19:21:44,419 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-03 19:21:44,419 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-03 19:21:44,419 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-03 19:21:44,420 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-03 19:21:44,420 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-03 19:21:44,420 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-03 19:21:44,420 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-03 19:21:44,420 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-03 19:21:44,435 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-09-03 19:21:44,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-03 19:21:44,440 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 19:21:44,441 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 19:21:44,443 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 19:21:44,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 19:21:44,448 INFO L82 PathProgramCache]: Analyzing trace with hash -859010367, now seen corresponding path program 1 times [2019-09-03 19:21:44,449 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 19:21:44,450 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 19:21:44,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:21:44,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 19:21:44,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:21:44,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 19:21:44,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 19:21:44,555 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 19:21:44,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-03 19:21:44,559 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-03 19:21:44,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-03 19:21:44,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-03 19:21:44,572 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2019-09-03 19:21:44,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 19:21:44,594 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2019-09-03 19:21:44,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-03 19:21:44,596 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-09-03 19:21:44,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 19:21:44,602 INFO L225 Difference]: With dead ends: 33 [2019-09-03 19:21:44,603 INFO L226 Difference]: Without dead ends: 14 [2019-09-03 19:21:44,606 INFO L628 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 [2019-09-03 19:21:44,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-09-03 19:21:44,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-09-03 19:21:44,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-09-03 19:21:44,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-09-03 19:21:44,642 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2019-09-03 19:21:44,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 19:21:44,642 INFO L475 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-09-03 19:21:44,642 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-03 19:21:44,643 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-09-03 19:21:44,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-03 19:21:44,643 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 19:21:44,644 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 19:21:44,644 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 19:21:44,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 19:21:44,645 INFO L82 PathProgramCache]: Analyzing trace with hash -873786703, now seen corresponding path program 1 times [2019-09-03 19:21:44,645 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-03 19:21:44,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-03 19:21:44,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:21:44,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 19:21:44,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 19:21:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-03 19:21:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-03 19:21:44,707 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-09-03 19:21:44,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.09 07:21:44 BoogieIcfgContainer [2019-09-03 19:21:44,736 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-03 19:21:44,740 INFO L168 Benchmark]: Toolchain (without parser) took 1078.47 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 87.4 MB in the beginning and 143.2 MB in the end (delta: -55.8 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-09-03 19:21:44,742 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 19:21:44,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 238.46 ms. Allocated memory is still 140.0 MB. Free memory was 87.0 MB in the beginning and 77.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-09-03 19:21:44,747 INFO L168 Benchmark]: Boogie Preprocessor took 124.48 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 77.7 MB in the beginning and 177.3 MB in the end (delta: -99.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-09-03 19:21:44,748 INFO L168 Benchmark]: RCFGBuilder took 273.19 ms. Allocated memory is still 199.8 MB. Free memory was 177.3 MB in the beginning and 165.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. [2019-09-03 19:21:44,749 INFO L168 Benchmark]: TraceAbstraction took 427.68 ms. Allocated memory is still 199.8 MB. Free memory was 164.4 MB in the beginning and 143.2 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-09-03 19:21:44,760 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.0 MB. Free memory was 106.0 MB in the beginning and 105.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 238.46 ms. Allocated memory is still 140.0 MB. Free memory was 87.0 MB in the beginning and 77.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 124.48 ms. Allocated memory was 140.0 MB in the beginning and 199.8 MB in the end (delta: 59.8 MB). Free memory was 77.7 MB in the beginning and 177.3 MB in the end (delta: -99.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 273.19 ms. Allocated memory is still 199.8 MB. Free memory was 177.3 MB in the beginning and 165.0 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 427.68 ms. Allocated memory is still 199.8 MB. Free memory was 164.4 MB in the beginning and 143.2 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 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: [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L15] unsigned int x1=__VERIFIER_nondet_uint(), x2=__VERIFIER_nondet_uint(), x3=__VERIFIER_nondet_uint(); [L16] unsigned int d1=1, d2=1, d3=1; [L17] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L17] _Bool c1=__VERIFIER_nondet_bool(), c2=__VERIFIER_nondet_bool(); [L19] COND FALSE !(x1>0 && x2>0 && x3>0) VAL [c1=2, c2=3, d1=1, d2=1, d3=1, x1=0, x2=0, x3=1] [L28] CALL __VERIFIER_assert(x1==0 && x2==0 && x3==0) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 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=21occurred 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, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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! Received shutdown request...