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/loop-invgen/apache-get-tag.i.p+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 16:11:59,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 16:11:59,642 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 16:11:59,655 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 16:11:59,655 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 16:11:59,656 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 16:11:59,659 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 16:11:59,661 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 16:11:59,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 16:11:59,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 16:11:59,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 16:11:59,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 16:11:59,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 16:11:59,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 16:11:59,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 16:11:59,679 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 16:11:59,679 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 16:11:59,680 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 16:11:59,682 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 16:11:59,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 16:11:59,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 16:11:59,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 16:11:59,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 16:11:59,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 16:11:59,696 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-16 16:11:59,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 16:11:59,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 16:11:59,703 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 16:11:59,704 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 16:11:59,704 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 16:11:59,705 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 16:11:59,705 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 16:11:59,705 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 16:11:59,706 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 16:11:59,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 16:11:59,709 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 16:11:59,710 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 [2019-09-16 16:11:59,735 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 16:11:59,736 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 16:11:59,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-16 16:11:59,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-16 16:11:59,738 INFO L138 SettingsManager]: * Use SBE=true [2019-09-16 16:11:59,739 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 16:11:59,739 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 16:11:59,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-16 16:11:59,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 16:11:59,740 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 16:11:59,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 16:11:59,740 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 16:11:59,740 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 16:11:59,740 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 16:11:59,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 16:11:59,741 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-16 16:11:59,741 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 16:11:59,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 16:11:59,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 16:11:59,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-16 16:11:59,742 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-16 16:11:59,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 16:11:59,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 16:11:59,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 16:11:59,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-16 16:11:59,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-16 16:11:59,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 16:11:59,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-16 16:11:59,744 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 16:11:59,784 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 16:11:59,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 16:11:59,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 16:11:59,799 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 16:11:59,799 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 16:11:59,800 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2019-09-16 16:11:59,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e8419b9/dec8bd80363d4c0e9286ac965baeb8e3/FLAGa738d2f67 [2019-09-16 16:12:00,424 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 16:12:00,429 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-get-tag.i.p+nlh-reducer.c [2019-09-16 16:12:00,452 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e8419b9/dec8bd80363d4c0e9286ac965baeb8e3/FLAGa738d2f67 [2019-09-16 16:12:00,683 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07e8419b9/dec8bd80363d4c0e9286ac965baeb8e3 [2019-09-16 16:12:00,691 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 16:12:00,692 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 16:12:00,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 16:12:00,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 16:12:00,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 16:12:00,696 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:12:00" (1/1) ... [2019-09-16 16:12:00,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2686e1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:12:00, skipping insertion in model container [2019-09-16 16:12:00,699 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 04:12:00" (1/1) ... [2019-09-16 16:12:00,705 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 16:12:00,772 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 16:12:01,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:12:01,339 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 16:12:01,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 16:12:01,675 INFO L192 MainTranslator]: Completed translation [2019-09-16 16:12:01,675 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:12:01 WrapperNode [2019-09-16 16:12:01,675 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 16:12:01,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 16:12:01,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 16:12:01,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 16:12:01,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:12:01" (1/1) ... [2019-09-16 16:12:01,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:12:01" (1/1) ... [2019-09-16 16:12:01,729 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:12:01" (1/1) ... [2019-09-16 16:12:01,729 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:12:01" (1/1) ... [2019-09-16 16:12:01,763 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:12:01" (1/1) ... [2019-09-16 16:12:01,793 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:12:01" (1/1) ... [2019-09-16 16:12:01,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:12:01" (1/1) ... [2019-09-16 16:12:01,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 16:12:01,820 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 16:12:01,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 16:12:01,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 16:12:01,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:12:01" (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 [2019-09-16 16:12:01,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 16:12:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 16:12:01,885 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 16:12:01,885 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 16:12:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-16 16:12:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-16 16:12:01,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 16:12:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 16:12:01,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 16:12:01,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 16:12:03,482 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 16:12:03,483 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-16 16:12:03,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 04:12:03 BoogieIcfgContainer [2019-09-16 16:12:03,485 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 16:12:03,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 16:12:03,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 16:12:03,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 16:12:03,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 04:12:00" (1/3) ... [2019-09-16 16:12:03,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16436c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 04:12:03, skipping insertion in model container [2019-09-16 16:12:03,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 04:12:01" (2/3) ... [2019-09-16 16:12:03,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16436c00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 04:12:03, skipping insertion in model container [2019-09-16 16:12:03,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 04:12:03" (3/3) ... [2019-09-16 16:12:03,493 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-get-tag.i.p+nlh-reducer.c [2019-09-16 16:12:03,504 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 16:12:03,512 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 16 error locations. [2019-09-16 16:12:03,530 INFO L252 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2019-09-16 16:12:03,563 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-16 16:12:03,564 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 16:12:03,564 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-16 16:12:03,564 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 16:12:03,564 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 16:12:03,565 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 16:12:03,565 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 16:12:03,565 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 16:12:03,565 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 16:12:03,590 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states. [2019-09-16 16:12:03,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-16 16:12:03,596 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:12:03,597 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:12:03,599 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:12:03,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:12:03,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1490721617, now seen corresponding path program 1 times [2019-09-16 16:12:03,608 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:12:03,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:12:03,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:12:03,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:12:03,666 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:12:03,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:12:03,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:12:03,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:12:03,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 16:12:03,785 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 16:12:03,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 16:12:03,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 16:12:03,802 INFO L87 Difference]: Start difference. First operand 309 states. Second operand 4 states. [2019-09-16 16:12:04,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:12:04,611 INFO L93 Difference]: Finished difference Result 319 states and 579 transitions. [2019-09-16 16:12:04,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 16:12:04,613 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-09-16 16:12:04,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:12:04,628 INFO L225 Difference]: With dead ends: 319 [2019-09-16 16:12:04,628 INFO L226 Difference]: Without dead ends: 302 [2019-09-16 16:12:04,631 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 16:12:04,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2019-09-16 16:12:04,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 302. [2019-09-16 16:12:04,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2019-09-16 16:12:04,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 425 transitions. [2019-09-16 16:12:04,704 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 425 transitions. Word has length 11 [2019-09-16 16:12:04,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:12:04,705 INFO L475 AbstractCegarLoop]: Abstraction has 302 states and 425 transitions. [2019-09-16 16:12:04,705 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 16:12:04,705 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 425 transitions. [2019-09-16 16:12:04,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-16 16:12:04,706 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:12:04,708 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:12:04,709 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:12:04,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:12:04,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1032267068, now seen corresponding path program 1 times [2019-09-16 16:12:04,709 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:12:04,710 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:12:04,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:12:04,712 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:12:04,712 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:12:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:12:04,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:12:04,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:12:04,773 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 16:12:04,775 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 16:12:04,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 16:12:04,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 16:12:04,779 INFO L87 Difference]: Start difference. First operand 302 states and 425 transitions. Second operand 4 states. [2019-09-16 16:12:05,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:12:05,159 INFO L93 Difference]: Finished difference Result 309 states and 432 transitions. [2019-09-16 16:12:05,160 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 16:12:05,160 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-09-16 16:12:05,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:12:05,163 INFO L225 Difference]: With dead ends: 309 [2019-09-16 16:12:05,163 INFO L226 Difference]: Without dead ends: 304 [2019-09-16 16:12:05,164 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 16:12:05,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2019-09-16 16:12:05,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 297. [2019-09-16 16:12:05,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 297 states. [2019-09-16 16:12:05,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 360 transitions. [2019-09-16 16:12:05,180 INFO L78 Accepts]: Start accepts. Automaton has 297 states and 360 transitions. Word has length 12 [2019-09-16 16:12:05,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:12:05,181 INFO L475 AbstractCegarLoop]: Abstraction has 297 states and 360 transitions. [2019-09-16 16:12:05,181 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 16:12:05,181 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 360 transitions. [2019-09-16 16:12:05,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-16 16:12:05,182 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:12:05,182 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:12:05,182 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:12:05,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:12:05,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1016017071, now seen corresponding path program 1 times [2019-09-16 16:12:05,183 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:12:05,183 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:12:05,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:12:05,186 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:12:05,186 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:12:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:12:05,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:12:05,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:12:05,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 16:12:05,231 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 16:12:05,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 16:12:05,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 16:12:05,232 INFO L87 Difference]: Start difference. First operand 297 states and 360 transitions. Second operand 4 states. [2019-09-16 16:12:05,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:12:05,704 INFO L93 Difference]: Finished difference Result 297 states and 360 transitions. [2019-09-16 16:12:05,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 16:12:05,705 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-09-16 16:12:05,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:12:05,707 INFO L225 Difference]: With dead ends: 297 [2019-09-16 16:12:05,707 INFO L226 Difference]: Without dead ends: 295 [2019-09-16 16:12:05,708 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 16:12:05,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 295 states. [2019-09-16 16:12:05,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 295 to 295. [2019-09-16 16:12:05,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 295 states. [2019-09-16 16:12:05,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 358 transitions. [2019-09-16 16:12:05,720 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 358 transitions. Word has length 12 [2019-09-16 16:12:05,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:12:05,720 INFO L475 AbstractCegarLoop]: Abstraction has 295 states and 358 transitions. [2019-09-16 16:12:05,720 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 16:12:05,720 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 358 transitions. [2019-09-16 16:12:05,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-16 16:12:05,721 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:12:05,721 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:12:05,722 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:12:05,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:12:05,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1431755048, now seen corresponding path program 1 times [2019-09-16 16:12:05,722 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:12:05,722 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:12:05,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:12:05,725 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:12:05,725 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:12:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:12:05,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:12:05,758 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:12:05,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 16:12:05,759 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 16:12:05,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 16:12:05,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 16:12:05,760 INFO L87 Difference]: Start difference. First operand 295 states and 358 transitions. Second operand 4 states. [2019-09-16 16:12:06,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:12:06,118 INFO L93 Difference]: Finished difference Result 300 states and 363 transitions. [2019-09-16 16:12:06,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 16:12:06,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-09-16 16:12:06,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:12:06,121 INFO L225 Difference]: With dead ends: 300 [2019-09-16 16:12:06,121 INFO L226 Difference]: Without dead ends: 298 [2019-09-16 16:12:06,122 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 16:12:06,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2019-09-16 16:12:06,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2019-09-16 16:12:06,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2019-09-16 16:12:06,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 361 transitions. [2019-09-16 16:12:06,133 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 361 transitions. Word has length 13 [2019-09-16 16:12:06,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:12:06,134 INFO L475 AbstractCegarLoop]: Abstraction has 298 states and 361 transitions. [2019-09-16 16:12:06,134 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 16:12:06,134 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 361 transitions. [2019-09-16 16:12:06,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-16 16:12:06,135 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:12:06,135 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:12:06,135 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:12:06,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:12:06,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1526969604, now seen corresponding path program 1 times [2019-09-16 16:12:06,136 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:12:06,136 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:12:06,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:12:06,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:12:06,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:12:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:12:06,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:12:06,178 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:12:06,178 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-16 16:12:06,179 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-16 16:12:06,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-16 16:12:06,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-16 16:12:06,179 INFO L87 Difference]: Start difference. First operand 298 states and 361 transitions. Second operand 5 states. [2019-09-16 16:12:06,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:12:06,674 INFO L93 Difference]: Finished difference Result 298 states and 361 transitions. [2019-09-16 16:12:06,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-16 16:12:06,675 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2019-09-16 16:12:06,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:12:06,677 INFO L225 Difference]: With dead ends: 298 [2019-09-16 16:12:06,677 INFO L226 Difference]: Without dead ends: 296 [2019-09-16 16:12:06,678 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-16 16:12:06,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2019-09-16 16:12:06,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2019-09-16 16:12:06,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2019-09-16 16:12:06,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 359 transitions. [2019-09-16 16:12:06,686 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 359 transitions. Word has length 15 [2019-09-16 16:12:06,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:12:06,686 INFO L475 AbstractCegarLoop]: Abstraction has 296 states and 359 transitions. [2019-09-16 16:12:06,687 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-16 16:12:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 359 transitions. [2019-09-16 16:12:06,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-16 16:12:06,688 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:12:06,688 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:12:06,688 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:12:06,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:12:06,689 INFO L82 PathProgramCache]: Analyzing trace with hash -91414371, now seen corresponding path program 1 times [2019-09-16 16:12:06,689 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:12:06,689 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:12:06,691 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:12:06,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:12:06,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:12:06,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:12:06,759 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 16:12:06,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 16:12:06,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-16 16:12:06,760 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-16 16:12:06,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-16 16:12:06,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-16 16:12:06,760 INFO L87 Difference]: Start difference. First operand 296 states and 359 transitions. Second operand 4 states. [2019-09-16 16:12:07,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 16:12:07,071 INFO L93 Difference]: Finished difference Result 296 states and 359 transitions. [2019-09-16 16:12:07,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-16 16:12:07,071 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-09-16 16:12:07,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 16:12:07,073 INFO L225 Difference]: With dead ends: 296 [2019-09-16 16:12:07,074 INFO L226 Difference]: Without dead ends: 292 [2019-09-16 16:12:07,074 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-16 16:12:07,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2019-09-16 16:12:07,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2019-09-16 16:12:07,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 292 states. [2019-09-16 16:12:07,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 355 transitions. [2019-09-16 16:12:07,083 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 355 transitions. Word has length 16 [2019-09-16 16:12:07,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 16:12:07,083 INFO L475 AbstractCegarLoop]: Abstraction has 292 states and 355 transitions. [2019-09-16 16:12:07,083 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-16 16:12:07,083 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 355 transitions. [2019-09-16 16:12:07,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-16 16:12:07,084 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 16:12:07,084 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 16:12:07,085 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 16:12:07,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 16:12:07,085 INFO L82 PathProgramCache]: Analyzing trace with hash -922816985, now seen corresponding path program 1 times [2019-09-16 16:12:07,086 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-16 16:12:07,086 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-16 16:12:07,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:12:07,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 16:12:07,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 16:12:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 16:12:07,134 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: NonCoreBooleanSubTermTransformer does not support AnnotatedTerm at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.NonCoreBooleanSubTermTransformer$NonCoreBooleanSubtermTransformerHelper.convert(NonCoreBooleanSubTermTransformer.java:107) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.NonCoreBooleanSubTermTransformer.transform(NonCoreBooleanSubTermTransformer.java:51) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:87) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computePredicates(NestedInterpolantsBuilder.java:585) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:271) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:207) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:183) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:461) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:371) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:332) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:170) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:122) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:120) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2019-09-16 16:12:07,140 INFO L168 Benchmark]: Toolchain (without parser) took 6446.05 ms. Allocated memory was 140.0 MB in the beginning and 316.7 MB in the end (delta: 176.7 MB). Free memory was 86.2 MB in the beginning and 137.8 MB in the end (delta: -51.6 MB). Peak memory consumption was 125.1 MB. Max. memory is 7.1 GB. [2019-09-16 16:12:07,141 INFO L168 Benchmark]: CDTParser took 0.20 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. [2019-09-16 16:12:07,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 982.54 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 86.0 MB in the beginning and 153.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2019-09-16 16:12:07,144 INFO L168 Benchmark]: Boogie Preprocessor took 144.01 ms. Allocated memory is still 200.3 MB. Free memory was 153.4 MB in the beginning and 148.1 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. [2019-09-16 16:12:07,145 INFO L168 Benchmark]: RCFGBuilder took 1664.24 ms. Allocated memory was 200.3 MB in the beginning and 224.9 MB in the end (delta: 24.6 MB). Free memory was 148.1 MB in the beginning and 97.4 MB in the end (delta: 50.7 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. [2019-09-16 16:12:07,146 INFO L168 Benchmark]: TraceAbstraction took 3650.80 ms. Allocated memory was 224.9 MB in the beginning and 316.7 MB in the end (delta: 91.8 MB). Free memory was 97.4 MB in the beginning and 137.8 MB in the end (delta: -40.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 7.1 GB. [2019-09-16 16:12:07,150 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 982.54 ms. Allocated memory was 140.0 MB in the beginning and 200.3 MB in the end (delta: 60.3 MB). Free memory was 86.0 MB in the beginning and 153.4 MB in the end (delta: -67.4 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.01 ms. Allocated memory is still 200.3 MB. Free memory was 153.4 MB in the beginning and 148.1 MB in the end (delta: 5.3 MB). Peak memory consumption was 5.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1664.24 ms. Allocated memory was 200.3 MB in the beginning and 224.9 MB in the end (delta: 24.6 MB). Free memory was 148.1 MB in the beginning and 97.4 MB in the end (delta: 50.7 MB). Peak memory consumption was 79.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3650.80 ms. Allocated memory was 224.9 MB in the beginning and 316.7 MB in the end (delta: 91.8 MB). Free memory was 97.4 MB in the beginning and 137.8 MB in the end (delta: -40.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: NonCoreBooleanSubTermTransformer does not support AnnotatedTerm de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: NonCoreBooleanSubTermTransformer does not support AnnotatedTerm: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.NonCoreBooleanSubTermTransformer$NonCoreBooleanSubtermTransformerHelper.convert(NonCoreBooleanSubTermTransformer.java:107) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...