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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:25:37,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:25:37,620 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:25:37,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-20 13:25:37,692 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:25:37,714 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:25:37,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:25:37,717 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:25:37,717 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:25:37,718 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:25:37,718 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:25:37,718 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:25:37,719 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:25:37,719 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:25:37,719 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:25:37,720 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:25:37,720 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:25:37,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:25:37,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:25:37,721 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:25:37,721 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:25:37,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:25:37,721 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:25:37,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:25:37,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:25:37,722 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:25:37,722 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:25:37,722 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:25:37,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:25:37,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:25:37,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:25:37,723 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:25:37,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:25:37,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:25:37,723 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:25:37,753 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:25:37,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:25:37,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:25:37,775 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:25:37,778 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:25:37,779 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2019-09-20 13:25:37,862 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26145eb51/435a26394ebc432b8788a1e7feb97a81/FLAG89e51d2af [2019-09-20 13:25:38,443 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:25:38,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2019-09-20 13:25:38,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26145eb51/435a26394ebc432b8788a1e7feb97a81/FLAG89e51d2af [2019-09-20 13:25:38,683 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26145eb51/435a26394ebc432b8788a1e7feb97a81 [2019-09-20 13:25:38,692 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:25:38,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:25:38,695 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:25:38,695 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:25:38,699 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:25:38,700 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:38" (1/1) ... [2019-09-20 13:25:38,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5652c470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:38, skipping insertion in model container [2019-09-20 13:25:38,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:38" (1/1) ... [2019-09-20 13:25:38,711 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:25:38,797 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:25:39,267 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:25:39,272 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:25:39,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:25:39,635 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:25:39,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:39 WrapperNode [2019-09-20 13:25:39,636 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:25:39,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:25:39,637 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:25:39,637 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:25:39,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:39" (1/1) ... [2019-09-20 13:25:39,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:39" (1/1) ... [2019-09-20 13:25:39,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:39" (1/1) ... [2019-09-20 13:25:39,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:39" (1/1) ... [2019-09-20 13:25:39,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:39" (1/1) ... [2019-09-20 13:25:39,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:39" (1/1) ... [2019-09-20 13:25:39,786 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:39" (1/1) ... [2019-09-20 13:25:39,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:25:39,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:25:39,809 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:25:39,809 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:25:39,810 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:39" (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 [2019-09-20 13:25:39,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:25:39,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:25:39,886 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:25:39,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:25:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:25:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:25:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:25:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:25:39,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:25:39,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:25:41,446 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:25:41,447 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 13:25:41,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:41 BoogieIcfgContainer [2019-09-20 13:25:41,450 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:25:41,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:25:41,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:25:41,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:25:41,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:38" (1/3) ... [2019-09-20 13:25:41,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1474d133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:41, skipping insertion in model container [2019-09-20 13:25:41,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:39" (2/3) ... [2019-09-20 13:25:41,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1474d133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:41, skipping insertion in model container [2019-09-20 13:25:41,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:41" (3/3) ... [2019-09-20 13:25:41,470 INFO L109 eAbstractionObserver]: Analyzing ICFG id_build.i.p+sep-reducer.c [2019-09-20 13:25:41,481 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:25:41,504 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-09-20 13:25:41,524 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-09-20 13:25:41,559 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:25:41,559 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:25:41,561 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:25:41,561 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:25:41,561 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:25:41,561 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:25:41,562 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:25:41,562 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:25:41,608 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states. [2019-09-20 13:25:41,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-09-20 13:25:41,638 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:25:41,640 INFO L407 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, 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, 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, 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, 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, 1, 1, 1] [2019-09-20 13:25:41,642 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:25:41,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:41,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1633347547, now seen corresponding path program 1 times [2019-09-20 13:25:41,653 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:25:41,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:41,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:41,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:41,723 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:25:41,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:25:42,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:25:42,273 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:25:42,273 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:25:42,273 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:25:42,279 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:25:42,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:25:42,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:25:42,298 INFO L87 Difference]: Start difference. First operand 252 states. Second operand 5 states. [2019-09-20 13:25:43,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:25:43,038 INFO L93 Difference]: Finished difference Result 261 states and 495 transitions. [2019-09-20 13:25:43,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:25:43,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2019-09-20 13:25:43,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:25:43,057 INFO L225 Difference]: With dead ends: 261 [2019-09-20 13:25:43,057 INFO L226 Difference]: Without dead ends: 253 [2019-09-20 13:25:43,059 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:25:43,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-09-20 13:25:43,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 246. [2019-09-20 13:25:43,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-09-20 13:25:43,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 283 transitions. [2019-09-20 13:25:43,129 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 283 transitions. Word has length 138 [2019-09-20 13:25:43,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:25:43,131 INFO L475 AbstractCegarLoop]: Abstraction has 246 states and 283 transitions. [2019-09-20 13:25:43,133 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:25:43,134 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 283 transitions. [2019-09-20 13:25:43,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-09-20 13:25:43,144 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:25:43,145 INFO L407 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, 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, 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, 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, 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, 1, 1, 1, 1] [2019-09-20 13:25:43,145 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:25:43,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:43,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1070545246, now seen corresponding path program 1 times [2019-09-20 13:25:43,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:25:43,151 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:43,151 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:43,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:43,152 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:25:43,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:25:43,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:25:43,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:25:43,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:25:43,462 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:25:43,468 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:25:43,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:25:43,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:25:43,469 INFO L87 Difference]: Start difference. First operand 246 states and 283 transitions. Second operand 5 states. [2019-09-20 13:25:44,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:25:44,303 INFO L93 Difference]: Finished difference Result 256 states and 296 transitions. [2019-09-20 13:25:44,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:25:44,304 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2019-09-20 13:25:44,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:25:44,305 INFO L225 Difference]: With dead ends: 256 [2019-09-20 13:25:44,306 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:25:44,306 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:25:44,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:25:44,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:25:44,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:25:44,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:25:44,308 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2019-09-20 13:25:44,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:25:44,308 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:25:44,308 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:25:44,308 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:25:44,308 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:25:44,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:25:44 BoogieIcfgContainer [2019-09-20 13:25:44,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:25:44,318 INFO L168 Benchmark]: Toolchain (without parser) took 5623.10 ms. Allocated memory was 137.9 MB in the beginning and 279.4 MB in the end (delta: 141.6 MB). Free memory was 84.4 MB in the beginning and 130.2 MB in the end (delta: -45.8 MB). Peak memory consumption was 95.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:44,319 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory is still 103.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 13:25:44,320 INFO L168 Benchmark]: CACSL2BoogieTranslator took 941.58 ms. Allocated memory was 137.9 MB in the beginning and 211.8 MB in the end (delta: 73.9 MB). Free memory was 84.4 MB in the beginning and 181.8 MB in the end (delta: -97.4 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:44,321 INFO L168 Benchmark]: Boogie Preprocessor took 170.35 ms. Allocated memory is still 211.8 MB. Free memory was 181.8 MB in the beginning and 178.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:44,322 INFO L168 Benchmark]: RCFGBuilder took 1641.65 ms. Allocated memory was 211.8 MB in the beginning and 280.5 MB in the end (delta: 68.7 MB). Free memory was 178.1 MB in the beginning and 235.0 MB in the end (delta: -56.8 MB). Peak memory consumption was 115.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:44,327 INFO L168 Benchmark]: TraceAbstraction took 2862.85 ms. Allocated memory was 280.5 MB in the beginning and 279.4 MB in the end (delta: -1.0 MB). Free memory was 235.0 MB in the beginning and 130.2 MB in the end (delta: 104.7 MB). Peak memory consumption was 103.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:44,332 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.9 MB. Free memory is still 103.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 941.58 ms. Allocated memory was 137.9 MB in the beginning and 211.8 MB in the end (delta: 73.9 MB). Free memory was 84.4 MB in the beginning and 181.8 MB in the end (delta: -97.4 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 170.35 ms. Allocated memory is still 211.8 MB. Free memory was 181.8 MB in the beginning and 178.1 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1641.65 ms. Allocated memory was 211.8 MB in the beginning and 280.5 MB in the end (delta: 68.7 MB). Free memory was 178.1 MB in the beginning and 235.0 MB in the end (delta: -56.8 MB). Peak memory consumption was 115.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2862.85 ms. Allocated memory was 280.5 MB in the beginning and 279.4 MB in the end (delta: -1.0 MB). Free memory was 235.0 MB in the beginning and 130.2 MB in the end (delta: 104.7 MB). Peak memory consumption was 103.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1998]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 2307]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 252 locations, 2 error locations. SAFE Result, 2.7s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 379 SDtfs, 791 SDslu, 651 SDs, 0 SdLazy, 1158 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 277 NumberOfCodeBlocks, 277 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 275 ConstructedInterpolants, 0 QuantifiedInterpolants, 83140 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 correct! Received shutdown request...