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_trans.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:25:40,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:25:40,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:25:40,699 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-20 13:25:40,758 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 13:25:40,785 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:25:40,786 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:25:40,787 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:25:40,787 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:25:40,788 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:25:40,788 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:25:40,788 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:25:40,791 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:25:40,791 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:25:40,792 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:25:40,792 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:25:40,793 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:25:40,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:25:40,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:25:40,793 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:25:40,793 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:25:40,794 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:25:40,794 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:25:40,795 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:25:40,795 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:25:40,795 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:25:40,796 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:25:40,796 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:25:40,796 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:25:40,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:25:40,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:25:40,800 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:25:40,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:25:40,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:25:40,801 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:25:40,851 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:25:40,864 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:25:40,868 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:25:40,870 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:25:40,870 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:25:40,871 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_trans.i [2019-09-20 13:25:40,926 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35577c1e8/3dd27308e88645a59190d78d58a6d4cb/FLAG9d749f9e4 [2019-09-20 13:25:41,342 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:25:41,343 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_trans.i [2019-09-20 13:25:41,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35577c1e8/3dd27308e88645a59190d78d58a6d4cb/FLAG9d749f9e4 [2019-09-20 13:25:41,738 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35577c1e8/3dd27308e88645a59190d78d58a6d4cb [2019-09-20 13:25:41,746 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:25:41,747 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:25:41,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:25:41,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:25:41,752 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:25:41,753 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:41" (1/1) ... [2019-09-20 13:25:41,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49584703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:41, skipping insertion in model container [2019-09-20 13:25:41,756 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:41" (1/1) ... [2019-09-20 13:25:41,764 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:25:41,784 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:25:42,009 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:25:42,015 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:25:42,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:25:42,053 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:25:42,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:42 WrapperNode [2019-09-20 13:25:42,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:25:42,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:25:42,055 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:25:42,055 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:25:42,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:42" (1/1) ... [2019-09-20 13:25:42,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:42" (1/1) ... [2019-09-20 13:25:42,165 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:42" (1/1) ... [2019-09-20 13:25:42,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:42" (1/1) ... [2019-09-20 13:25:42,174 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:42" (1/1) ... [2019-09-20 13:25:42,180 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:42" (1/1) ... [2019-09-20 13:25:42,182 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:42" (1/1) ... [2019-09-20 13:25:42,183 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:25:42,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:25:42,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:25:42,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:25:42,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:42" (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 13:25:42,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:25:42,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:25:42,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:25:42,243 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:25:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:25:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-20 13:25:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:25:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:25:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:25:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:25:42,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:25:42,428 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:25:42,428 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:25:42,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:42 BoogieIcfgContainer [2019-09-20 13:25:42,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:25:42,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:25:42,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:25:42,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:25:42,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:41" (1/3) ... [2019-09-20 13:25:42,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cac2a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:42, skipping insertion in model container [2019-09-20 13:25:42,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:42" (2/3) ... [2019-09-20 13:25:42,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cac2a37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:42, skipping insertion in model container [2019-09-20 13:25:42,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:42" (3/3) ... [2019-09-20 13:25:42,437 INFO L109 eAbstractionObserver]: Analyzing ICFG id_trans.i [2019-09-20 13:25:42,444 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:25:42,450 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:25:42,465 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:25:42,489 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:25:42,490 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:25:42,490 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:25:42,490 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:25:42,490 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:25:42,490 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:25:42,490 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:25:42,491 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:25:42,503 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-09-20 13:25:42,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-20 13:25:42,510 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:25:42,510 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:25:42,512 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:25:42,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:42,517 INFO L82 PathProgramCache]: Analyzing trace with hash 1719634852, now seen corresponding path program 1 times [2019-09-20 13:25:42,519 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:25:42,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:42,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:42,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:42,564 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:25:42,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:25:42,705 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 13:25:42,707 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:25:42,707 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:25:42,708 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:25:42,715 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:25:42,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:25:42,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:25:42,743 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2019-09-20 13:25:42,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:25:42,868 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-09-20 13:25:42,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:25:42,870 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-09-20 13:25:42,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:25:42,880 INFO L225 Difference]: With dead ends: 29 [2019-09-20 13:25:42,880 INFO L226 Difference]: Without dead ends: 22 [2019-09-20 13:25:42,882 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:25:42,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-09-20 13:25:42,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-09-20 13:25:42,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-09-20 13:25:42,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-09-20 13:25:42,923 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 11 [2019-09-20 13:25:42,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:25:42,924 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-09-20 13:25:42,924 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:25:42,924 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-09-20 13:25:42,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-20 13:25:42,926 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:25:42,926 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:25:42,926 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:25:42,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:42,927 INFO L82 PathProgramCache]: Analyzing trace with hash 769813017, now seen corresponding path program 1 times [2019-09-20 13:25:42,927 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:25:42,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:42,929 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:42,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:42,929 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:25:42,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:25:43,002 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:25:43,002 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:25:43,002 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:25:43,003 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:25:43,004 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:25:43,005 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:25:43,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:25:43,005 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 5 states. [2019-09-20 13:25:43,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:25:43,054 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2019-09-20 13:25:43,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:25:43,055 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2019-09-20 13:25:43,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:25:43,056 INFO L225 Difference]: With dead ends: 26 [2019-09-20 13:25:43,056 INFO L226 Difference]: Without dead ends: 26 [2019-09-20 13:25:43,057 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:25:43,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-09-20 13:25:43,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2019-09-20 13:25:43,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-20 13:25:43,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2019-09-20 13:25:43,064 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 16 [2019-09-20 13:25:43,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:25:43,064 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2019-09-20 13:25:43,064 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:25:43,064 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2019-09-20 13:25:43,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2019-09-20 13:25:43,067 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:25:43,067 INFO L407 BasicCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:25:43,067 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:25:43,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:43,068 INFO L82 PathProgramCache]: Analyzing trace with hash 889343161, now seen corresponding path program 1 times [2019-09-20 13:25:43,068 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:25:43,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:43,072 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:43,073 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:43,073 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:25:43,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-20 13:25:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-09-20 13:25:43,188 INFO L474 BasicCegarLoop]: Counterexample might be feasible [2019-09-20 13:25:43,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:25:43 BoogieIcfgContainer [2019-09-20 13:25:43,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:25:43,212 INFO L168 Benchmark]: Toolchain (without parser) took 1463.75 ms. Allocated memory was 133.7 MB in the beginning and 198.2 MB in the end (delta: 64.5 MB). Free memory was 86.7 MB in the beginning and 120.3 MB in the end (delta: -33.6 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:43,213 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory was 105.5 MB in the beginning and 105.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:25:43,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.49 ms. Allocated memory is still 133.7 MB. Free memory was 86.5 MB in the beginning and 77.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:43,215 INFO L168 Benchmark]: Boogie Preprocessor took 128.59 ms. Allocated memory was 133.7 MB in the beginning and 198.2 MB in the end (delta: 64.5 MB). Free memory was 77.2 MB in the beginning and 175.7 MB in the end (delta: -98.5 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:43,216 INFO L168 Benchmark]: RCFGBuilder took 246.67 ms. Allocated memory is still 198.2 MB. Free memory was 175.7 MB in the beginning and 162.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:43,217 INFO L168 Benchmark]: TraceAbstraction took 778.39 ms. Allocated memory is still 198.2 MB. Free memory was 162.7 MB in the beginning and 120.3 MB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:43,221 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 133.7 MB. Free memory was 105.5 MB in the beginning and 105.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 306.49 ms. Allocated memory is still 133.7 MB. Free memory was 86.5 MB in the beginning and 77.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.59 ms. Allocated memory was 133.7 MB in the beginning and 198.2 MB in the end (delta: 64.5 MB). Free memory was 77.2 MB in the beginning and 175.7 MB in the end (delta: -98.5 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 246.67 ms. Allocated memory is still 198.2 MB. Free memory was 175.7 MB in the beginning and 162.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 778.39 ms. Allocated memory is still 198.2 MB. Free memory was 162.7 MB in the beginning and 120.3 MB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 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: [L11] int idBitLength, material_length, nlen; [L12] int j, k; [L13] nlen = __VERIFIER_nondet_int() [L14] idBitLength = __VERIFIER_nondet_int() [L15] material_length = __VERIFIER_nondet_int() [L16] COND FALSE !(!( nlen == idBitLength / 32 )) [L17] j = 0 VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L17] COND TRUE (j < idBitLength / 8) && (j < material_length) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L18] CALL __VERIFIER_assert( 0 <= j) VAL [\old(cond)=1] [L4] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L18] RET __VERIFIER_assert( 0 <= j) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L19] CALL __VERIFIER_assert( j < material_length ) VAL [\old(cond)=1] [L4] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L19] RET __VERIFIER_assert( j < material_length ) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L20] CALL __VERIFIER_assert( 0 <= j/4 ) VAL [\old(cond)=1] [L4] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L20] RET __VERIFIER_assert( 0 <= j/4 ) VAL [idBitLength=9, j=0, material_length=1, nlen=0] [L21] CALL __VERIFIER_assert( j/4 < nlen) 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, 23 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 42 SDtfs, 13 SDslu, 98 SDs, 0 SdLazy, 44 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=2, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 575 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...