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 --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label16.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 00:55:35,435 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-10-07 00:55:35,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 00:55:35,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 00:55:35,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 00:55:35,518 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 [2019-10-07 00:55:35,537 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 00:55:35,543 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 00:55:35,544 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 00:55:35,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 00:55:35,545 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 00:55:35,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 00:55:35,546 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 00:55:35,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 00:55:35,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 00:55:35,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 00:55:35,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 00:55:35,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 00:55:35,548 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 00:55:35,548 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 00:55:35,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 00:55:35,549 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 00:55:35,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 00:55:35,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 00:55:35,549 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 00:55:35,549 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 00:55:35,550 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 00:55:35,550 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 00:55:35,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 00:55:35,550 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 00:55:35,550 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 00:55:35,551 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 00:55:35,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 00:55:35,551 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 00:55:35,551 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-07 00:55:35,845 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 00:55:35,859 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 00:55:35,862 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 00:55:35,864 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 00:55:35,864 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 00:55:35,865 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label16.c [2019-10-07 00:55:35,928 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52c16f630/30004744a6ee4855bf03e2234f2dc682/FLAGb54992bde [2019-10-07 00:55:36,462 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 00:55:36,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label16.c [2019-10-07 00:55:36,478 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52c16f630/30004744a6ee4855bf03e2234f2dc682/FLAGb54992bde [2019-10-07 00:55:36,720 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52c16f630/30004744a6ee4855bf03e2234f2dc682 [2019-10-07 00:55:36,730 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 00:55:36,732 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 00:55:36,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 00:55:36,733 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 00:55:36,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 00:55:36,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:55:36" (1/1) ... [2019-10-07 00:55:36,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2be43138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:36, skipping insertion in model container [2019-10-07 00:55:36,741 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:55:36" (1/1) ... [2019-10-07 00:55:36,748 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 00:55:36,799 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 00:55:37,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:55:37,342 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 00:55:37,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 00:55:37,492 INFO L192 MainTranslator]: Completed translation [2019-10-07 00:55:37,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:37 WrapperNode [2019-10-07 00:55:37,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 00:55:37,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 00:55:37,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 00:55:37,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 00:55:37,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:37" (1/1) ... [2019-10-07 00:55:37,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:37" (1/1) ... [2019-10-07 00:55:37,526 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:37" (1/1) ... [2019-10-07 00:55:37,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:37" (1/1) ... [2019-10-07 00:55:37,570 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:37" (1/1) ... [2019-10-07 00:55:37,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:37" (1/1) ... [2019-10-07 00:55:37,589 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:37" (1/1) ... [2019-10-07 00:55:37,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 00:55:37,596 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 00:55:37,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 00:55:37,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 00:55:37,600 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:37" (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 [2019-10-07 00:55:37,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 00:55:37,681 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 00:55:37,681 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-07 00:55:37,681 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 00:55:37,682 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-07 00:55:37,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 00:55:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 00:55:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-07 00:55:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 00:55:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 00:55:37,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 00:55:39,632 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 00:55:39,632 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 00:55:39,636 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:55:39 BoogieIcfgContainer [2019-10-07 00:55:39,637 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 00:55:39,638 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 00:55:39,638 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 00:55:39,644 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 00:55:39,644 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:55:36" (1/3) ... [2019-10-07 00:55:39,645 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4891aa1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:55:39, skipping insertion in model container [2019-10-07 00:55:39,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:55:37" (2/3) ... [2019-10-07 00:55:39,646 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4891aa1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:55:39, skipping insertion in model container [2019-10-07 00:55:39,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:55:39" (3/3) ... [2019-10-07 00:55:39,654 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label16.c [2019-10-07 00:55:39,668 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 00:55:39,678 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 00:55:39,690 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 00:55:39,714 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 00:55:39,715 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 00:55:39,715 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 00:55:39,715 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 00:55:39,715 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 00:55:39,715 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 00:55:39,716 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 00:55:39,716 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 00:55:39,738 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-10-07 00:55:39,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-07 00:55:39,748 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:55:39,749 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 00:55:39,751 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:55:39,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:55:39,757 INFO L82 PathProgramCache]: Analyzing trace with hash 826828967, now seen corresponding path program 1 times [2019-10-07 00:55:39,767 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:55:39,767 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:55:39,767 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:55:39,768 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:55:39,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:55:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:55:40,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:55:40,257 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:55:40,258 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:55:40,259 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 00:55:40,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 00:55:40,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 00:55:40,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:55:40,283 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2019-10-07 00:55:40,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:55:40,839 INFO L93 Difference]: Finished difference Result 246 states and 454 transitions. [2019-10-07 00:55:40,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 00:55:40,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-10-07 00:55:40,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:55:40,865 INFO L225 Difference]: With dead ends: 246 [2019-10-07 00:55:40,866 INFO L226 Difference]: Without dead ends: 157 [2019-10-07 00:55:40,873 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:55:40,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-10-07 00:55:40,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-10-07 00:55:40,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-10-07 00:55:40,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 291 transitions. [2019-10-07 00:55:40,946 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 291 transitions. Word has length 77 [2019-10-07 00:55:40,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:55:40,947 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 291 transitions. [2019-10-07 00:55:40,947 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 00:55:40,947 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 291 transitions. [2019-10-07 00:55:40,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-07 00:55:40,952 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:55:40,953 INFO L385 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2019-10-07 00:55:40,953 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:55:40,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:55:40,954 INFO L82 PathProgramCache]: Analyzing trace with hash 579803918, now seen corresponding path program 1 times [2019-10-07 00:55:40,954 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:55:40,954 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:55:40,954 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:55:40,955 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:55:40,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:55:40,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:55:41,158 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:55:41,159 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:55:41,159 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:55:41,159 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-07 00:55:41,161 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-07 00:55:41,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-07 00:55:41,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:55:41,162 INFO L87 Difference]: Start difference. First operand 157 states and 291 transitions. Second operand 3 states. [2019-10-07 00:55:41,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:55:41,549 INFO L93 Difference]: Finished difference Result 459 states and 874 transitions. [2019-10-07 00:55:41,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-07 00:55:41,550 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2019-10-07 00:55:41,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:55:41,556 INFO L225 Difference]: With dead ends: 459 [2019-10-07 00:55:41,556 INFO L226 Difference]: Without dead ends: 307 [2019-10-07 00:55:41,559 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-07 00:55:41,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2019-10-07 00:55:41,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 232. [2019-10-07 00:55:41,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2019-10-07 00:55:41,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 418 transitions. [2019-10-07 00:55:41,584 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 418 transitions. Word has length 94 [2019-10-07 00:55:41,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:55:41,584 INFO L462 AbstractCegarLoop]: Abstraction has 232 states and 418 transitions. [2019-10-07 00:55:41,585 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-07 00:55:41,585 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 418 transitions. [2019-10-07 00:55:41,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-10-07 00:55:41,588 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 00:55:41,589 INFO L385 BasicCegarLoop]: trace histogram [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] [2019-10-07 00:55:41,589 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 00:55:41,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 00:55:41,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1740709362, now seen corresponding path program 1 times [2019-10-07 00:55:41,590 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 00:55:41,590 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:55:41,590 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:55:41,591 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 00:55:41,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 00:55:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 00:55:41,699 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 00:55:41,699 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 00:55:41,700 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 00:55:41,700 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 00:55:41,700 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 00:55:41,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 00:55:41,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 00:55:41,701 INFO L87 Difference]: Start difference. First operand 232 states and 418 transitions. Second operand 4 states. [2019-10-07 00:55:42,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 00:55:42,382 INFO L93 Difference]: Finished difference Result 832 states and 1552 transitions. [2019-10-07 00:55:42,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 00:55:42,383 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 111 [2019-10-07 00:55:42,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 00:55:42,383 INFO L225 Difference]: With dead ends: 832 [2019-10-07 00:55:42,384 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 00:55:42,387 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-07 00:55:42,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 00:55:42,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 00:55:42,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 00:55:42,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 00:55:42,388 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 111 [2019-10-07 00:55:42,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 00:55:42,388 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 00:55:42,389 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 00:55:42,389 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 00:55:42,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 00:55:42,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 00:55:42,549 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-07 00:55:42,549 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 00:55:42,550 INFO L443 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2019-10-07 00:55:42,550 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2019-10-07 00:55:42,550 INFO L443 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2019-10-07 00:55:42,550 INFO L443 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2019-10-07 00:55:42,550 INFO L443 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2019-10-07 00:55:42,550 INFO L443 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2019-10-07 00:55:42,551 INFO L443 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2019-10-07 00:55:42,551 INFO L443 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2019-10-07 00:55:42,551 INFO L443 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2019-10-07 00:55:42,551 INFO L443 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2019-10-07 00:55:42,551 INFO L443 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2019-10-07 00:55:42,551 INFO L443 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2019-10-07 00:55:42,551 INFO L443 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2019-10-07 00:55:42,552 INFO L443 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2019-10-07 00:55:42,552 INFO L443 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2019-10-07 00:55:42,552 INFO L443 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2019-10-07 00:55:42,552 INFO L443 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2019-10-07 00:55:42,552 INFO L443 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2019-10-07 00:55:42,552 INFO L443 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2019-10-07 00:55:42,553 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2019-10-07 00:55:42,553 INFO L443 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2019-10-07 00:55:42,553 INFO L443 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2019-10-07 00:55:42,553 INFO L443 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2019-10-07 00:55:42,553 INFO L443 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2019-10-07 00:55:42,553 INFO L443 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2019-10-07 00:55:42,554 INFO L443 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2019-10-07 00:55:42,554 INFO L443 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2019-10-07 00:55:42,554 INFO L443 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2019-10-07 00:55:42,554 INFO L443 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2019-10-07 00:55:42,554 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2019-10-07 00:55:42,554 INFO L443 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2019-10-07 00:55:42,554 INFO L443 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2019-10-07 00:55:42,555 INFO L443 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2019-10-07 00:55:42,555 INFO L443 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2019-10-07 00:55:42,555 INFO L443 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2019-10-07 00:55:42,555 INFO L443 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2019-10-07 00:55:42,555 INFO L443 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2019-10-07 00:55:42,555 INFO L443 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2019-10-07 00:55:42,555 INFO L443 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2019-10-07 00:55:42,556 INFO L443 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2019-10-07 00:55:42,556 INFO L443 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2019-10-07 00:55:42,556 INFO L443 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2019-10-07 00:55:42,556 INFO L443 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2019-10-07 00:55:42,556 INFO L443 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2019-10-07 00:55:42,556 INFO L443 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2019-10-07 00:55:42,557 INFO L443 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2019-10-07 00:55:42,557 INFO L443 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2019-10-07 00:55:42,557 INFO L443 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2019-10-07 00:55:42,557 INFO L443 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2019-10-07 00:55:42,557 INFO L443 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2019-10-07 00:55:42,557 INFO L439 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (and (or (= 6 |old(~a16~0)|) (not (= ~a16~0 6))) (or (not (= ~a7~0 1)) (= 1 |old(~a7~0)|)) (or (not (= 5 |old(~a16~0)|)) (= ~a16~0 5)) (or (= 14 |old(~a8~0)|) (not (= 14 ~a8~0)))) [2019-10-07 00:55:42,558 INFO L443 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2019-10-07 00:55:42,558 INFO L443 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2019-10-07 00:55:42,558 INFO L443 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2019-10-07 00:55:42,558 INFO L443 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2019-10-07 00:55:42,558 INFO L443 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2019-10-07 00:55:42,558 INFO L443 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2019-10-07 00:55:42,558 INFO L443 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2019-10-07 00:55:42,559 INFO L443 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2019-10-07 00:55:42,559 INFO L443 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2019-10-07 00:55:42,559 INFO L443 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2019-10-07 00:55:42,559 INFO L443 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2019-10-07 00:55:42,559 INFO L443 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2019-10-07 00:55:42,559 INFO L443 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2019-10-07 00:55:42,560 INFO L443 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2019-10-07 00:55:42,560 INFO L443 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2019-10-07 00:55:42,560 INFO L443 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2019-10-07 00:55:42,560 INFO L443 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2019-10-07 00:55:42,560 INFO L443 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2019-10-07 00:55:42,560 INFO L443 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2019-10-07 00:55:42,560 INFO L443 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2019-10-07 00:55:42,561 INFO L443 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 566) no Hoare annotation was computed. [2019-10-07 00:55:42,561 INFO L443 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2019-10-07 00:55:42,561 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 00:55:42,561 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (not (= ~a7~0 1)) (not (= 14 ~a8~0)) (= ~a16~0 5)) [2019-10-07 00:55:42,561 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 00:55:42,561 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 00:55:42,562 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (= 1 |old(~a7~0)|) (and (not (= ~a7~0 1)) (not (= 14 ~a8~0)) (= ~a16~0 5)) (not (= 5 |old(~a16~0)|)) (= 14 |old(~a8~0)|)) [2019-10-07 00:55:42,562 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2019-10-07 00:55:42,562 INFO L439 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (or (= 1 |old(~a7~0)|) (not (= ~a7~0 1)) (not (= 5 |old(~a16~0)|)) (= 14 |old(~a8~0)|) (not (= ~a16~0 6)) (not (= 14 ~a8~0))) [2019-10-07 00:55:42,562 INFO L443 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2019-10-07 00:55:42,562 INFO L443 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2019-10-07 00:55:42,563 INFO L439 ceAbstractionStarter]: At program point L583-2(lines 583 593) the Hoare annotation is: (or (= 1 |old(~a7~0)|) (not (= ~a7~0 1)) (not (= 5 |old(~a16~0)|)) (= 14 |old(~a8~0)|) (not (= ~a16~0 6)) (not (= 14 ~a8~0))) [2019-10-07 00:55:42,563 INFO L443 ceAbstractionStarter]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2019-10-07 00:55:42,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 12:55:42 BoogieIcfgContainer [2019-10-07 00:55:42,582 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 00:55:42,585 INFO L168 Benchmark]: Toolchain (without parser) took 5851.65 ms. Allocated memory was 144.2 MB in the beginning and 301.5 MB in the end (delta: 157.3 MB). Free memory was 100.0 MB in the beginning and 166.3 MB in the end (delta: -66.3 MB). Peak memory consumption was 91.0 MB. Max. memory is 7.1 GB. [2019-10-07 00:55:42,587 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-07 00:55:42,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.94 ms. Allocated memory was 144.2 MB in the beginning and 204.5 MB in the end (delta: 60.3 MB). Free memory was 99.8 MB in the beginning and 170.6 MB in the end (delta: -70.7 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2019-10-07 00:55:42,590 INFO L168 Benchmark]: Boogie Preprocessor took 102.17 ms. Allocated memory is still 204.5 MB. Free memory was 170.6 MB in the beginning and 164.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2019-10-07 00:55:42,592 INFO L168 Benchmark]: RCFGBuilder took 2040.64 ms. Allocated memory was 204.5 MB in the beginning and 252.7 MB in the end (delta: 48.2 MB). Free memory was 164.9 MB in the beginning and 215.2 MB in the end (delta: -50.3 MB). Peak memory consumption was 117.6 MB. Max. memory is 7.1 GB. [2019-10-07 00:55:42,594 INFO L168 Benchmark]: TraceAbstraction took 2944.00 ms. Allocated memory was 252.7 MB in the beginning and 301.5 MB in the end (delta: 48.8 MB). Free memory was 215.2 MB in the beginning and 166.3 MB in the end (delta: 48.9 MB). Peak memory consumption was 97.7 MB. Max. memory is 7.1 GB. [2019-10-07 00:55:42,604 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 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 759.94 ms. Allocated memory was 144.2 MB in the beginning and 204.5 MB in the end (delta: 60.3 MB). Free memory was 99.8 MB in the beginning and 170.6 MB in the end (delta: -70.7 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.17 ms. Allocated memory is still 204.5 MB. Free memory was 170.6 MB in the beginning and 164.9 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 2040.64 ms. Allocated memory was 204.5 MB in the beginning and 252.7 MB in the end (delta: 48.2 MB). Free memory was 164.9 MB in the beginning and 215.2 MB in the end (delta: -50.3 MB). Peak memory consumption was 117.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2944.00 ms. Allocated memory was 252.7 MB in the beginning and 301.5 MB in the end (delta: 48.8 MB). Free memory was 215.2 MB in the beginning and 166.3 MB in the end (delta: 48.9 MB). Peak memory consumption was 97.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 566]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((1 == \old(a7) || !(a7 == 1)) || !(5 == \old(a16))) || 14 == \old(a8)) || !(a16 == 6)) || !(14 == a8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 86 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 74 SDtfs, 167 SDslu, 42 SDs, 0 SdLazy, 785 SolverSat, 293 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=232occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 75 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 20 PreInvPairs, 36 NumberOfFragments, 116 HoareAnnotationTreeSize, 20 FomulaSimplifications, 156 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 94 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 282 NumberOfCodeBlocks, 282 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 279 ConstructedInterpolants, 0 QuantifiedInterpolants, 87583 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 45/45 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...