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/loop-invariants/eq1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:39:15,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:39:15,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:39:15,821 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:39:15,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:39:15,824 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:39:15,826 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:39:15,834 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:39:15,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:39:15,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:39:15,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:39:15,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:39:15,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:39:15,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:39:15,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:39:15,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:39:15,851 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:39:15,852 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:39:15,854 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:39:15,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:39:15,862 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:39:15,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:39:15,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:39:15,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:39:15,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 13:39:15,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:39:15,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:39:15,880 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:39:15,881 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 13:39:15,912 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:39:15,914 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:39:15,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:39:15,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:39:15,916 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:39:15,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:39:15,916 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:39:15,916 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:39:15,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:39:15,917 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:39:15,917 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:39:15,920 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:39:15,920 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:39:15,920 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:39:15,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:39:15,921 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:39:15,921 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:39:15,921 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:39:15,921 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:39:15,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:39:15,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:39:15,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:39:15,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:39:15,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:39:15,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:39:15,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:39:15,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:39:15,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:39:15,924 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 13:39:16,194 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:39:16,206 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:39:16,209 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:39:16,211 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:39:16,211 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:39:16,212 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/eq1.c [2019-10-07 13:39:16,271 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d84bf977/3cd8a592a0fb49cf80399fe27fd0d174/FLAGd15a1a461 [2019-10-07 13:39:16,676 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:39:16,677 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq1.c [2019-10-07 13:39:16,683 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d84bf977/3cd8a592a0fb49cf80399fe27fd0d174/FLAGd15a1a461 [2019-10-07 13:39:17,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d84bf977/3cd8a592a0fb49cf80399fe27fd0d174 [2019-10-07 13:39:17,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:39:17,107 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:39:17,112 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:39:17,112 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:39:17,115 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:39:17,116 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:39:17" (1/1) ... [2019-10-07 13:39:17,119 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77a1e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:39:17, skipping insertion in model container [2019-10-07 13:39:17,119 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:39:17" (1/1) ... [2019-10-07 13:39:17,127 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:39:17,146 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:39:17,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:39:17,339 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:39:17,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:39:17,368 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:39:17,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:39:17 WrapperNode [2019-10-07 13:39:17,369 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:39:17,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:39:17,370 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:39:17,370 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:39:17,455 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:39:17" (1/1) ... [2019-10-07 13:39:17,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:39:17" (1/1) ... [2019-10-07 13:39:17,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:39:17" (1/1) ... [2019-10-07 13:39:17,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:39:17" (1/1) ... [2019-10-07 13:39:17,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:39:17" (1/1) ... [2019-10-07 13:39:17,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:39:17" (1/1) ... [2019-10-07 13:39:17,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:39:17" (1/1) ... [2019-10-07 13:39:17,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:39:17,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:39:17,477 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:39:17,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:39:17,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:39:17" (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 13:39:17,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:39:17,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:39:17,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:39:17,539 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:39:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:39:17,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2019-10-07 13:39:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:39:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:39:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:39:17,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:39:17,791 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:39:17,792 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 13:39:17,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:39:17 BoogieIcfgContainer [2019-10-07 13:39:17,794 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:39:17,804 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:39:17,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:39:17,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:39:17,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:39:17" (1/3) ... [2019-10-07 13:39:17,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d0dbaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:39:17, skipping insertion in model container [2019-10-07 13:39:17,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:39:17" (2/3) ... [2019-10-07 13:39:17,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d0dbaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:39:17, skipping insertion in model container [2019-10-07 13:39:17,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:39:17" (3/3) ... [2019-10-07 13:39:17,821 INFO L109 eAbstractionObserver]: Analyzing ICFG eq1.c [2019-10-07 13:39:17,847 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:39:17,861 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:39:17,889 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:39:17,912 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:39:17,912 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:39:17,913 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:39:17,913 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:39:17,913 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:39:17,913 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:39:17,913 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:39:17,914 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:39:17,928 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-07 13:39:17,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-07 13:39:17,932 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:39:17,933 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:39:17,935 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:39:17,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:39:17,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1733570904, now seen corresponding path program 1 times [2019-10-07 13:39:17,950 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:39:17,950 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:39:17,950 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:39:17,951 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:39:17,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:39:18,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:39:18,207 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 13:39:18,208 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:39:18,209 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:39:18,210 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:39:18,214 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:39:18,228 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:39:18,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:39:18,232 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2019-10-07 13:39:18,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:39:18,311 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-10-07 13:39:18,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:39:18,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-07 13:39:18,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:39:18,321 INFO L225 Difference]: With dead ends: 23 [2019-10-07 13:39:18,321 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 13:39:18,324 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-07 13:39:18,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 13:39:18,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 13:39:18,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 13:39:18,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 13:39:18,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-07 13:39:18,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:39:18,347 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 13:39:18,347 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:39:18,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 13:39:18,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 13:39:18,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 13:39:18,394 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-07 13:39:18,394 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:39:18,395 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:39:18,395 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-07 13:39:18,397 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 13:39:18,397 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 13:39:18,397 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 9 23) the Hoare annotation is: true [2019-10-07 13:39:18,397 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 23) no Hoare annotation was computed. [2019-10-07 13:39:18,397 INFO L443 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2019-10-07 13:39:18,398 INFO L439 ceAbstractionStarter]: At program point L15-2(lines 14 20) the Hoare annotation is: (and (= main_~x~0 main_~w~0) (= main_~z~0 main_~y~0)) [2019-10-07 13:39:18,398 INFO L439 ceAbstractionStarter]: At program point L14-2(lines 14 20) the Hoare annotation is: (and (= main_~x~0 main_~w~0) (= main_~z~0 main_~y~0)) [2019-10-07 13:39:18,399 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-07 13:39:18,399 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-07 13:39:18,400 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:39:18,400 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-07 13:39:18,400 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-07 13:39:18,400 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:39:18,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:39:18 BoogieIcfgContainer [2019-10-07 13:39:18,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:39:18,420 INFO L168 Benchmark]: Toolchain (without parser) took 1311.34 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 103.3 MB in the beginning and 137.1 MB in the end (delta: -33.8 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2019-10-07 13:39:18,422 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 13:39:18,424 INFO L168 Benchmark]: CACSL2BoogieTranslator took 257.78 ms. Allocated memory is still 145.2 MB. Free memory was 103.1 MB in the beginning and 93.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-07 13:39:18,427 INFO L168 Benchmark]: Boogie Preprocessor took 105.96 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 93.5 MB in the beginning and 180.6 MB in the end (delta: -87.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-07 13:39:18,428 INFO L168 Benchmark]: RCFGBuilder took 318.22 ms. Allocated memory is still 202.4 MB. Free memory was 180.6 MB in the beginning and 166.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2019-10-07 13:39:18,429 INFO L168 Benchmark]: TraceAbstraction took 611.90 ms. Allocated memory is still 202.4 MB. Free memory was 166.4 MB in the beginning and 137.1 MB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. [2019-10-07 13:39:18,440 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 145.2 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 257.78 ms. Allocated memory is still 145.2 MB. Free memory was 103.1 MB in the beginning and 93.5 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.96 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 93.5 MB in the beginning and 180.6 MB in the end (delta: -87.1 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 318.22 ms. Allocated memory is still 202.4 MB. Free memory was 180.6 MB in the beginning and 166.4 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 611.90 ms. Allocated memory is still 202.4 MB. Free memory was 166.4 MB in the beginning and 137.1 MB in the end (delta: 29.3 MB). Peak memory consumption was 29.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 14]: Loop Invariant Derived loop invariant: x == w && z == y - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 6 SDslu, 27 SDs, 0 SdLazy, 10 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 19 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...