java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label41_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-3142e50-m [2018-09-10 11:38:18,677 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-10 11:38:18,679 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-10 11:38:18,691 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-10 11:38:18,691 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-10 11:38:18,692 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-10 11:38:18,694 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-10 11:38:18,695 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-10 11:38:18,697 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-10 11:38:18,698 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-10 11:38:18,699 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-10 11:38:18,699 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-10 11:38:18,700 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-10 11:38:18,701 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-10 11:38:18,702 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-10 11:38:18,703 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-10 11:38:18,704 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-10 11:38:18,706 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-10 11:38:18,708 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-10 11:38:18,710 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-10 11:38:18,711 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-10 11:38:18,712 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-10 11:38:18,715 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-10 11:38:18,724 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-10 11:38:18,739 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-10 11:38:18,740 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-10 11:38:18,741 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-10 11:38:18,741 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-10 11:38:18,741 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-10 11:38:18,741 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-10 11:38:18,743 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-10 11:38:18,743 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-10 11:38:18,743 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-10 11:38:18,743 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-10 11:38:18,743 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-10 11:38:18,744 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-10 11:38:18,744 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-10 11:38:18,745 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-10 11:38:18,745 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-10 11:38:18,745 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-10 11:38:18,745 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-10 11:38:18,746 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-10 11:38:18,746 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-10 11:38:18,746 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-10 11:38:18,746 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-10 11:38:18,747 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-10 11:38:18,747 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-10 11:38:18,747 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-10 11:38:18,747 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-10 11:38:18,747 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-10 11:38:18,748 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-10 11:38:18,748 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-10 11:38:18,748 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-10 11:38:18,748 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-10 11:38:18,748 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-10 11:38:18,749 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-10 11:38:18,749 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-10 11:38:18,815 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-10 11:38:18,829 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-10 11:38:18,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-10 11:38:18,838 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-10 11:38:18,838 INFO L276 PluginConnector]: CDTParser initialized [2018-09-10 11:38:18,839 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label41_true-unreach-call.c [2018-09-10 11:38:19,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86acd307/333de4737fb74fc19cf921c34777124c/FLAG1fa484aa7 [2018-09-10 11:38:19,533 INFO L276 CDTParser]: Found 1 translation units. [2018-09-10 11:38:19,535 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label41_true-unreach-call.c [2018-09-10 11:38:19,558 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86acd307/333de4737fb74fc19cf921c34777124c/FLAG1fa484aa7 [2018-09-10 11:38:19,574 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d86acd307/333de4737fb74fc19cf921c34777124c [2018-09-10 11:38:19,587 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-10 11:38:19,592 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-10 11:38:19,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-10 11:38:19,594 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-10 11:38:19,603 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-10 11:38:19,605 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:38:19" (1/1) ... [2018-09-10 11:38:19,608 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5569bc79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:19, skipping insertion in model container [2018-09-10 11:38:19,608 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 11:38:19" (1/1) ... [2018-09-10 11:38:19,884 INFO L180 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-09-10 11:38:20,347 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:38:20,371 INFO L431 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-10 11:38:20,574 INFO L175 PostProcessor]: Settings: Checked method=main [2018-09-10 11:38:20,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:20 WrapperNode [2018-09-10 11:38:20,657 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-10 11:38:20,658 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-10 11:38:20,658 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-10 11:38:20,658 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-10 11:38:20,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:20" (1/1) ... [2018-09-10 11:38:20,725 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:20" (1/1) ... [2018-09-10 11:38:20,861 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-10 11:38:20,862 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-10 11:38:20,862 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-10 11:38:20,862 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-10 11:38:21,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:20" (1/1) ... [2018-09-10 11:38:21,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:20" (1/1) ... [2018-09-10 11:38:21,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:20" (1/1) ... [2018-09-10 11:38:21,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:20" (1/1) ... [2018-09-10 11:38:21,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:20" (1/1) ... [2018-09-10 11:38:21,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:20" (1/1) ... [2018-09-10 11:38:21,252 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:20" (1/1) ... [2018-09-10 11:38:21,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-10 11:38:21,265 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-10 11:38:21,265 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-10 11:38:21,266 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-10 11:38:21,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:20" (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 [2018-09-10 11:38:21,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-10 11:38:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-10 11:38:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 11:38:21,344 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-09-10 11:38:21,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-10 11:38:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-10 11:38:21,345 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-10 11:38:21,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-10 11:38:26,961 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-10 11:38:26,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:38:26 BoogieIcfgContainer [2018-09-10 11:38:26,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-10 11:38:26,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-10 11:38:26,963 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-10 11:38:26,967 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-10 11:38:26,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 11:38:19" (1/3) ... [2018-09-10 11:38:26,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b62a1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:38:26, skipping insertion in model container [2018-09-10 11:38:26,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 11:38:20" (2/3) ... [2018-09-10 11:38:26,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b62a1c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 11:38:26, skipping insertion in model container [2018-09-10 11:38:26,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 11:38:26" (3/3) ... [2018-09-10 11:38:26,971 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label41_true-unreach-call.c [2018-09-10 11:38:26,981 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-10 11:38:26,989 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-10 11:38:27,043 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-10 11:38:27,044 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-10 11:38:27,044 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-10 11:38:27,044 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-10 11:38:27,044 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-10 11:38:27,045 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-10 11:38:27,045 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-10 11:38:27,045 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-10 11:38:27,045 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-10 11:38:27,074 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-09-10 11:38:27,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-09-10 11:38:27,082 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:38:27,084 INFO L376 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] [2018-09-10 11:38:27,085 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:38:27,091 INFO L82 PathProgramCache]: Analyzing trace with hash -146636772, now seen corresponding path program 1 times [2018-09-10 11:38:27,094 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:38:27,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:27,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:27,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:27,153 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:38:27,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:27,549 WARN L175 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-10 11:38:27,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:38:27,681 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:38:27,681 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-10 11:38:27,682 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:38:27,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:38:27,718 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:38:27,718 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:38:27,721 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 3 states. [2018-09-10 11:38:30,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:38:30,072 INFO L93 Difference]: Finished difference Result 782 states and 1372 transitions. [2018-09-10 11:38:30,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:38:30,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 28 [2018-09-10 11:38:30,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:38:30,095 INFO L225 Difference]: With dead ends: 782 [2018-09-10 11:38:30,095 INFO L226 Difference]: Without dead ends: 487 [2018-09-10 11:38:30,104 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-10 11:38:30,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2018-09-10 11:38:30,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 482. [2018-09-10 11:38:30,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 482 states. [2018-09-10 11:38:30,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 843 transitions. [2018-09-10 11:38:30,192 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 843 transitions. Word has length 28 [2018-09-10 11:38:30,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:38:30,193 INFO L480 AbstractCegarLoop]: Abstraction has 482 states and 843 transitions. [2018-09-10 11:38:30,193 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:38:30,193 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 843 transitions. [2018-09-10 11:38:30,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2018-09-10 11:38:30,199 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:38:30,200 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:38:30,200 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:38:30,201 INFO L82 PathProgramCache]: Analyzing trace with hash -425752825, now seen corresponding path program 1 times [2018-09-10 11:38:30,201 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:38:30,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:30,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:30,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:30,203 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:38:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:30,994 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:38:30,994 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:38:30,995 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-10 11:38:30,995 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:38:30,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-10 11:38:30,999 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-10 11:38:30,999 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-09-10 11:38:30,999 INFO L87 Difference]: Start difference. First operand 482 states and 843 transitions. Second operand 7 states. [2018-09-10 11:38:39,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:38:39,246 INFO L93 Difference]: Finished difference Result 1760 states and 3239 transitions. [2018-09-10 11:38:39,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-10 11:38:39,246 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 103 [2018-09-10 11:38:39,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:38:39,263 INFO L225 Difference]: With dead ends: 1760 [2018-09-10 11:38:39,264 INFO L226 Difference]: Without dead ends: 1284 [2018-09-10 11:38:39,270 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-09-10 11:38:39,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1284 states. [2018-09-10 11:38:39,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1284 to 1037. [2018-09-10 11:38:39,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1037 states. [2018-09-10 11:38:39,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1037 states to 1037 states and 1685 transitions. [2018-09-10 11:38:39,359 INFO L78 Accepts]: Start accepts. Automaton has 1037 states and 1685 transitions. Word has length 103 [2018-09-10 11:38:39,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:38:39,360 INFO L480 AbstractCegarLoop]: Abstraction has 1037 states and 1685 transitions. [2018-09-10 11:38:39,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-10 11:38:39,360 INFO L276 IsEmpty]: Start isEmpty. Operand 1037 states and 1685 transitions. [2018-09-10 11:38:39,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-09-10 11:38:39,378 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:38:39,379 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:38:39,379 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:38:39,379 INFO L82 PathProgramCache]: Analyzing trace with hash -1279135784, now seen corresponding path program 1 times [2018-09-10 11:38:39,379 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:38:39,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:39,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:39,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:39,381 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:38:39,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:39,693 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 42 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:38:39,694 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:38:39,694 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:38:39,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:39,711 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:38:39,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:39,823 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:38:40,250 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-09-10 11:38:40,250 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:38:40,838 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 42 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-10 11:38:40,871 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:38:40,871 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-10 11:38:40,871 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:38:40,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:38:40,872 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:38:40,873 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:38:40,873 INFO L87 Difference]: Start difference. First operand 1037 states and 1685 transitions. Second operand 5 states. [2018-09-10 11:38:48,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:38:48,149 INFO L93 Difference]: Finished difference Result 3395 states and 5619 transitions. [2018-09-10 11:38:48,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:38:48,153 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 176 [2018-09-10 11:38:48,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:38:48,171 INFO L225 Difference]: With dead ends: 3395 [2018-09-10 11:38:48,171 INFO L226 Difference]: Without dead ends: 2364 [2018-09-10 11:38:48,178 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 347 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-09-10 11:38:48,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2364 states. [2018-09-10 11:38:48,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2364 to 2323. [2018-09-10 11:38:48,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2323 states. [2018-09-10 11:38:48,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2323 states to 2323 states and 3627 transitions. [2018-09-10 11:38:48,262 INFO L78 Accepts]: Start accepts. Automaton has 2323 states and 3627 transitions. Word has length 176 [2018-09-10 11:38:48,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:38:48,263 INFO L480 AbstractCegarLoop]: Abstraction has 2323 states and 3627 transitions. [2018-09-10 11:38:48,263 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:38:48,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2323 states and 3627 transitions. [2018-09-10 11:38:48,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-09-10 11:38:48,268 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:38:48,268 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:38:48,268 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:38:48,271 INFO L82 PathProgramCache]: Analyzing trace with hash 239746622, now seen corresponding path program 1 times [2018-09-10 11:38:48,271 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:38:48,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:48,272 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:48,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:48,272 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:38:48,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:49,001 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-10 11:38:49,001 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:38:49,002 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:38:49,023 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:49,024 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:38:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:49,147 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:38:50,791 WARN L175 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 1344 DAG size of output: 51 [2018-09-10 11:38:51,103 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 72 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-10 11:38:51,103 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:38:51,527 WARN L175 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2018-09-10 11:38:52,391 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-10 11:38:52,414 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:38:52,415 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 9] total 13 [2018-09-10 11:38:52,415 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:38:52,416 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-10 11:38:52,416 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-10 11:38:52,416 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2018-09-10 11:38:52,416 INFO L87 Difference]: Start difference. First operand 2323 states and 3627 transitions. Second operand 3 states. [2018-09-10 11:38:54,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:38:54,546 INFO L93 Difference]: Finished difference Result 5978 states and 9599 transitions. [2018-09-10 11:38:54,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-10 11:38:54,547 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 220 [2018-09-10 11:38:54,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:38:54,571 INFO L225 Difference]: With dead ends: 5978 [2018-09-10 11:38:54,572 INFO L226 Difference]: Without dead ends: 3661 [2018-09-10 11:38:54,588 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 438 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2018-09-10 11:38:54,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3661 states. [2018-09-10 11:38:54,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3661 to 3600. [2018-09-10 11:38:54,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3600 states. [2018-09-10 11:38:54,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3600 states to 3600 states and 5635 transitions. [2018-09-10 11:38:54,683 INFO L78 Accepts]: Start accepts. Automaton has 3600 states and 5635 transitions. Word has length 220 [2018-09-10 11:38:54,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:38:54,684 INFO L480 AbstractCegarLoop]: Abstraction has 3600 states and 5635 transitions. [2018-09-10 11:38:54,684 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-10 11:38:54,685 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5635 transitions. [2018-09-10 11:38:54,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2018-09-10 11:38:54,697 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:38:54,697 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:38:54,697 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:38:54,698 INFO L82 PathProgramCache]: Analyzing trace with hash 821872642, now seen corresponding path program 1 times [2018-09-10 11:38:54,698 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:38:54,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:54,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:54,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:38:54,699 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:38:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:55,445 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 145 proven. 78 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-10 11:38:55,446 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:38:55,447 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:38:55,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:38:55,458 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:38:55,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:38:55,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:38:56,168 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-10 11:38:56,169 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:38:57,206 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 71 proven. 155 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-09-10 11:38:57,228 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-10 11:38:57,228 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2018-09-10 11:38:57,228 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:38:57,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-10 11:38:57,229 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-10 11:38:57,229 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-09-10 11:38:57,230 INFO L87 Difference]: Start difference. First operand 3600 states and 5635 transitions. Second operand 5 states. [2018-09-10 11:39:00,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:39:00,570 INFO L93 Difference]: Finished difference Result 9082 states and 14671 transitions. [2018-09-10 11:39:00,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-10 11:39:00,578 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 310 [2018-09-10 11:39:00,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:39:00,615 INFO L225 Difference]: With dead ends: 9082 [2018-09-10 11:39:00,615 INFO L226 Difference]: Without dead ends: 5488 [2018-09-10 11:39:00,646 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 626 GetRequests, 615 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2018-09-10 11:39:00,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5488 states. [2018-09-10 11:39:00,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5488 to 5414. [2018-09-10 11:39:00,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5414 states. [2018-09-10 11:39:00,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 7789 transitions. [2018-09-10 11:39:00,803 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 7789 transitions. Word has length 310 [2018-09-10 11:39:00,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:39:00,804 INFO L480 AbstractCegarLoop]: Abstraction has 5414 states and 7789 transitions. [2018-09-10 11:39:00,804 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-10 11:39:00,804 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 7789 transitions. [2018-09-10 11:39:00,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-09-10 11:39:00,821 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:39:00,822 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 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] [2018-09-10 11:39:00,822 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:39:00,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1587316366, now seen corresponding path program 1 times [2018-09-10 11:39:00,823 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:39:00,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:00,824 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:00,824 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:00,824 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:39:00,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:01,234 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2018-09-10 11:39:01,234 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-10 11:39:01,235 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-10 11:39:01,235 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-10 11:39:01,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-10 11:39:01,236 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-10 11:39:01,236 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:39:01,236 INFO L87 Difference]: Start difference. First operand 5414 states and 7789 transitions. Second operand 4 states. [2018-09-10 11:39:05,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:39:05,139 INFO L93 Difference]: Finished difference Result 14163 states and 22239 transitions. [2018-09-10 11:39:05,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-10 11:39:05,145 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 318 [2018-09-10 11:39:05,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:39:05,190 INFO L225 Difference]: With dead ends: 14163 [2018-09-10 11:39:05,190 INFO L226 Difference]: Without dead ends: 8755 [2018-09-10 11:39:05,228 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-10 11:39:05,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8755 states. [2018-09-10 11:39:05,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8755 to 8689. [2018-09-10 11:39:05,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8689 states. [2018-09-10 11:39:05,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8689 states to 8689 states and 12924 transitions. [2018-09-10 11:39:05,446 INFO L78 Accepts]: Start accepts. Automaton has 8689 states and 12924 transitions. Word has length 318 [2018-09-10 11:39:05,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:39:05,447 INFO L480 AbstractCegarLoop]: Abstraction has 8689 states and 12924 transitions. [2018-09-10 11:39:05,447 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-10 11:39:05,447 INFO L276 IsEmpty]: Start isEmpty. Operand 8689 states and 12924 transitions. [2018-09-10 11:39:05,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2018-09-10 11:39:05,504 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:39:05,504 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:39:05,505 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:39:05,505 INFO L82 PathProgramCache]: Analyzing trace with hash 399067847, now seen corresponding path program 1 times [2018-09-10 11:39:05,505 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:39:05,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:05,506 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:05,506 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:05,507 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:39:05,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:06,137 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 268 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-10 11:39:06,138 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:39:06,138 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:39:06,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:06,147 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:39:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:06,299 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:39:06,588 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 268 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-10 11:39:06,588 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:39:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 268 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-10 11:39:06,993 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:39:06,993 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:39:07,010 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:07,010 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:39:07,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:07,362 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:39:07,561 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 268 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-10 11:39:07,561 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:39:07,780 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 268 proven. 2 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-10 11:39:07,783 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:39:07,783 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-10 11:39:07,783 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:39:07,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 11:39:07,784 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 11:39:07,784 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-10 11:39:07,785 INFO L87 Difference]: Start difference. First operand 8689 states and 12924 transitions. Second operand 9 states. [2018-09-10 11:39:14,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:39:14,384 INFO L93 Difference]: Finished difference Result 21688 states and 40850 transitions. [2018-09-10 11:39:14,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-09-10 11:39:14,385 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 370 [2018-09-10 11:39:14,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:39:14,525 INFO L225 Difference]: With dead ends: 21688 [2018-09-10 11:39:14,525 INFO L226 Difference]: Without dead ends: 12815 [2018-09-10 11:39:14,636 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1502 GetRequests, 1478 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=140, Invalid=280, Unknown=0, NotChecked=0, Total=420 [2018-09-10 11:39:14,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12815 states. [2018-09-10 11:39:15,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12815 to 12403. [2018-09-10 11:39:15,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12403 states. [2018-09-10 11:39:15,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12403 states to 12403 states and 20562 transitions. [2018-09-10 11:39:15,314 INFO L78 Accepts]: Start accepts. Automaton has 12403 states and 20562 transitions. Word has length 370 [2018-09-10 11:39:15,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:39:15,315 INFO L480 AbstractCegarLoop]: Abstraction has 12403 states and 20562 transitions. [2018-09-10 11:39:15,315 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 11:39:15,315 INFO L276 IsEmpty]: Start isEmpty. Operand 12403 states and 20562 transitions. [2018-09-10 11:39:15,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2018-09-10 11:39:15,410 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:39:15,411 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:39:15,411 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:39:15,411 INFO L82 PathProgramCache]: Analyzing trace with hash 126526519, now seen corresponding path program 1 times [2018-09-10 11:39:15,411 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:39:15,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:15,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:15,413 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:15,413 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:39:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:16,088 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 276 proven. 2 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-10 11:39:16,089 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:39:16,089 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:39:16,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:16,097 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:39:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:16,251 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:39:16,383 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 276 proven. 2 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-10 11:39:16,383 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:39:16,559 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 276 proven. 2 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-10 11:39:16,580 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:39:16,581 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:39:16,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:16,596 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:39:16,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:16,934 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:39:17,027 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 276 proven. 2 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-10 11:39:17,027 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:39:17,400 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 276 proven. 2 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-10 11:39:17,403 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:39:17,403 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-10 11:39:17,403 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:39:17,405 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-10 11:39:17,406 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-10 11:39:17,406 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:39:17,406 INFO L87 Difference]: Start difference. First operand 12403 states and 20562 transitions. Second operand 9 states. [2018-09-10 11:39:21,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:39:21,674 INFO L93 Difference]: Finished difference Result 24896 states and 42042 transitions. [2018-09-10 11:39:21,675 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-10 11:39:21,675 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 378 [2018-09-10 11:39:21,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:39:21,748 INFO L225 Difference]: With dead ends: 24896 [2018-09-10 11:39:21,748 INFO L226 Difference]: Without dead ends: 12688 [2018-09-10 11:39:21,816 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1530 GetRequests, 1508 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2018-09-10 11:39:21,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12688 states. [2018-09-10 11:39:22,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12688 to 12305. [2018-09-10 11:39:22,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12305 states. [2018-09-10 11:39:22,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12305 states to 12305 states and 17497 transitions. [2018-09-10 11:39:22,153 INFO L78 Accepts]: Start accepts. Automaton has 12305 states and 17497 transitions. Word has length 378 [2018-09-10 11:39:22,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:39:22,154 INFO L480 AbstractCegarLoop]: Abstraction has 12305 states and 17497 transitions. [2018-09-10 11:39:22,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-10 11:39:22,154 INFO L276 IsEmpty]: Start isEmpty. Operand 12305 states and 17497 transitions. [2018-09-10 11:39:22,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2018-09-10 11:39:22,232 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:39:22,232 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-10 11:39:22,233 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:39:22,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1308628907, now seen corresponding path program 1 times [2018-09-10 11:39:22,233 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:39:22,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:22,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:22,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:22,234 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:39:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:22,902 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2018-09-10 11:39:22,903 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:39:22,903 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:39:22,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:22,910 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:39:23,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:23,080 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:39:23,375 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2018-09-10 11:39:23,375 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:39:23,586 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2018-09-10 11:39:23,607 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:39:23,608 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-10 11:39:23,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:23,626 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:39:23,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:24,003 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:39:24,479 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 248 proven. 277 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-10 11:39:24,480 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:39:24,751 INFO L134 CoverageAnalysis]: Checked inductivity of 597 backedges. 366 proven. 2 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2018-09-10 11:39:24,754 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-10 11:39:24,754 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 6, 5] total 8 [2018-09-10 11:39:24,754 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-10 11:39:24,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-10 11:39:24,756 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-10 11:39:24,756 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-10 11:39:24,756 INFO L87 Difference]: Start difference. First operand 12305 states and 17497 transitions. Second operand 6 states. [2018-09-10 11:39:26,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-10 11:39:26,761 INFO L93 Difference]: Finished difference Result 27555 states and 42065 transitions. [2018-09-10 11:39:26,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-10 11:39:26,762 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 444 [2018-09-10 11:39:26,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-10 11:39:26,810 INFO L225 Difference]: With dead ends: 27555 [2018-09-10 11:39:26,810 INFO L226 Difference]: Without dead ends: 14327 [2018-09-10 11:39:26,853 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1786 GetRequests, 1770 SyntacticMatches, 7 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-09-10 11:39:26,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14327 states. [2018-09-10 11:39:27,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14327 to 13730. [2018-09-10 11:39:27,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13730 states. [2018-09-10 11:39:27,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13730 states to 13730 states and 17063 transitions. [2018-09-10 11:39:27,161 INFO L78 Accepts]: Start accepts. Automaton has 13730 states and 17063 transitions. Word has length 444 [2018-09-10 11:39:27,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-10 11:39:27,162 INFO L480 AbstractCegarLoop]: Abstraction has 13730 states and 17063 transitions. [2018-09-10 11:39:27,162 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-10 11:39:27,162 INFO L276 IsEmpty]: Start isEmpty. Operand 13730 states and 17063 transitions. [2018-09-10 11:39:27,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2018-09-10 11:39:27,266 INFO L368 BasicCegarLoop]: Found error trace [2018-09-10 11:39:27,267 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-10 11:39:27,267 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-10 11:39:27,268 INFO L82 PathProgramCache]: Analyzing trace with hash -32935313, now seen corresponding path program 1 times [2018-09-10 11:39:27,268 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-10 11:39:27,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:27,269 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:27,269 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-10 11:39:27,269 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-10 11:39:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:28,037 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 95 proven. 394 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2018-09-10 11:39:28,038 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-10 11:39:28,038 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:39:28,045 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-10 11:39:28,046 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-10 11:39:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-10 11:39:28,246 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-10 11:39:29,264 WARN L175 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 415 DAG size of output: 18 [2018-09-10 11:39:47,545 WARN L175 SmtUtils]: Spent 18.18 s on a formula simplification. DAG size of input: 145 DAG size of output: 88 [2018-09-10 11:39:50,390 WARN L175 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 35 [2018-09-10 11:39:50,678 INFO L134 CoverageAnalysis]: Checked inductivity of 715 backedges. 457 proven. 40 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2018-09-10 11:39:50,679 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-10 11:40:08,504 WARN L175 SmtUtils]: Spent 16.36 s on a formula simplification. DAG size of input: 144 DAG size of output: 75 [2018-09-10 11:40:08,657 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 28 [2018-09-10 11:40:10,734 WARN L1032 $PredicateComparison]: unable to prove that (let ((.cse29 (* 9 c_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a29~0))) (let ((.cse17 (div .cse29 10))) (let ((.cse18 (+ .cse17 1))) (let ((.cse19 (* 5 (div .cse17 5))) (.cse28 (* 5 (div .cse18 5))) (.cse15 (= 0 (mod .cse29 10))) (.cse12 (= (mod .cse17 5) 0)) (.cse5 (= 0 (mod .cse18 5)))) (let ((.cse14 (not .cse5)) (.cse16 (<= 0 .cse29)) (.cse1 (not .cse12)) (.cse6 (<= 0 .cse18)) (.cse3 (not .cse15)) (.cse10 (< .cse29 0)) (.cse8 (< .cse17 0)) (.cse4 (< 0 (+ .cse28 549143))) (.cse0 (< 0 (+ .cse19 549138))) (.cse7 (< 0 (+ .cse28 549138))) (.cse2 (forall ((v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a29~0_BEFORE_CALL_7 Int)) (or (< |c_old(~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a29~0)| v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a29~0_BEFORE_CALL_7) (exists ((v_prenex_127 Int)) (let ((.cse21 (* 9 v_prenex_127))) (let ((.cse20 (+ (div .cse21 10) 1))) (and (= 0 (mod .cse20 5)) (not (= (mod .cse21 10) 0)) (< .cse21 0) (<= (+ (* 5 (div .cse20 5)) 549138) 0) (<= v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a29~0_BEFORE_CALL_7 v_prenex_127))))) (exists ((v_prenex_128 Int)) (let ((.cse23 (* 9 v_prenex_128))) (let ((.cse22 (+ (div .cse23 10) 1))) (and (< .cse22 0) (<= (+ (* 5 (div .cse22 5)) 549143) 0) (not (= (mod .cse23 10) 0)) (not (= 0 (mod .cse22 5))) (< .cse23 0) (<= v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a29~0_BEFORE_CALL_7 v_prenex_128))))) (exists ((v_prenex_129 Int)) (let ((.cse25 (* 9 v_prenex_129))) (let ((.cse24 (div .cse25 10))) (and (<= (+ (* 5 (div .cse24 5)) 549143) 0) (= (mod .cse25 10) 0) (<= v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a29~0_BEFORE_CALL_7 v_prenex_129) (< .cse24 0) (not (= 0 (mod .cse24 5))))))) (exists ((v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a29~0_659 Int)) (let ((.cse26 (* 9 v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a29~0_659))) (let ((.cse27 (div .cse26 10))) (and (= (mod .cse26 10) 0) (<= (+ (* 5 (div .cse27 5)) 549138) 0) (= 0 (mod .cse27 5)) (<= v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a29~0_BEFORE_CALL_7 v_~__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__a29~0_659)))))))) (.cse11 (< 0 (+ .cse19 549143))) (.cse9 (< .cse18 0)) (.cse13 (<= 0 .cse17))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse1 .cse2 .cse4 .cse5 .cse6) (or .cse7 .cse0 .cse8 .cse2 .cse9) (or .cse0 .cse10 .cse2 .cse11) (or .cse0 .cse1 .cse10 .cse2) (or .cse0 .cse8 .cse10 .cse2) (or .cse7 .cse0 .cse2 .cse11 .cse4) (or .cse7 .cse12 .cse2 .cse11 .cse13 .cse14) (or .cse7 .cse0 .cse1 .cse2 .cse4) (or .cse7 .cse0 .cse8 .cse2 .cse14) (or .cse0 .cse8 .cse2 .cse4 .cse5 .cse6) (or .cse7 .cse2 .cse15 .cse4 .cse16) (or .cse7 .cse0 .cse1 .cse2 .cse14) (or .cse0 .cse8 .cse2 .cse3) (or .cse7 .cse0 .cse2 .cse11 .cse14) (or .cse12 .cse2 .cse11 .cse3 .cse13) (or .cse12 .cse2 .cse11 .cse4 .cse13 .cse5 .cse6) (or .cse7 .cse2 .cse15 .cse14 .cse16) (or .cse7 .cse2 .cse15 .cse9 .cse16) (or .cse2 .cse15 .cse4 .cse5 .cse16 .cse6) (or .cse7 .cse12 .cse2 .cse11 .cse4 .cse13) (or .cse7 .cse0 .cse1 .cse2 .cse9) (or .cse0 .cse2 .cse11 .cse4 .cse5 .cse6) (or .cse0 .cse2 .cse11 .cse3) (or .cse12 .cse10 .cse2 .cse11 .cse13) (or .cse7 .cse0 .cse8 .cse2 .cse4) (or .cse7 .cse0 .cse2 .cse11 .cse9) (or .cse7 .cse12 .cse2 .cse11 .cse9 .cse13))))))) is different from true [2018-09-10 11:40:10,745 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 28 Received shutdown request... [2018-09-10 11:41:47,795 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-10 11:41:47,997 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-10 11:41:47,998 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-10 11:41:48,003 WARN L206 ceAbstractionStarter]: Timeout [2018-09-10 11:41:48,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 11:41:48 BoogieIcfgContainer [2018-09-10 11:41:48,003 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-10 11:41:48,004 INFO L168 Benchmark]: Toolchain (without parser) took 208416.11 ms. Allocated memory was 1.5 GB in the beginning and 7.4 GB in the end (delta: 5.8 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -852.1 MB). Peak memory consumption was 7.1 GB. Max. memory is 7.1 GB. [2018-09-10 11:41:48,005 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-10 11:41:48,005 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1063.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-09-10 11:41:48,006 INFO L168 Benchmark]: Boogie Procedure Inliner took 203.76 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-10 11:41:48,007 INFO L168 Benchmark]: Boogie Preprocessor took 402.89 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 810.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -923.4 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2018-09-10 11:41:48,008 INFO L168 Benchmark]: RCFGBuilder took 5697.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 217.5 MB). Peak memory consumption was 217.5 MB. Max. memory is 7.1 GB. [2018-09-10 11:41:48,009 INFO L168 Benchmark]: TraceAbstraction took 201040.10 ms. Allocated memory was 2.3 GB in the beginning and 7.4 GB in the end (delta: 5.0 GB). Free memory was 2.0 GB in the beginning and 2.3 GB in the end (delta: -230.7 MB). Peak memory consumption was 6.9 GB. Max. memory is 7.1 GB. [2018-09-10 11:41:48,013 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1063.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 203.76 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 402.89 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 810.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -923.4 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5697.24 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 217.5 MB). Peak memory consumption was 217.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 201040.10 ms. Allocated memory was 2.3 GB in the beginning and 7.4 GB in the end (delta: 5.0 GB). Free memory was 2.0 GB in the beginning and 2.3 GB in the end (delta: -230.7 MB). Peak memory consumption was 6.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 69]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 69). Cancelled while BasicCegarLoop was analyzing trace of length 509 with TraceHistMax 5, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was eliminating quantifiers from formula with 1 quantifier alternations, while DnfTransformerHelper was transforming 28 conjuction. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 200.9s OverallTime, 10 OverallIterations, 5 TraceHistogramMax, 40.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1942 SDtfs, 8218 SDslu, 1825 SDs, 0 SdLazy, 15894 SolverSat, 3368 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 33.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6279 GetRequests, 6165 SyntacticMatches, 23 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13730occurred in iteration=9, 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: 2.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 1886 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 2.0s SatisfiabilityAnalysisTime, 13.3s InterpolantComputationTime, 5437 NumberOfCodeBlocks, 5437 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 8500 ConstructedInterpolants, 24 QuantifiedInterpolants, 8582247 SizeOfPredicates, 9 NumberOfNonLiveVariables, 5334 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 27 InterpolantComputations, 6 PerfectInterpolantSequences, 7801/8565 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label41_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-10_11-41-48-028.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label41_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-10_11-41-48-028.csv Completed graceful shutdown