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/ldv-regression/test07.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 12:48:09,757 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 12:48:09,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 12:48:09,779 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 12:48:09,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 12:48:09,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 12:48:09,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 12:48:09,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 12:48:09,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 12:48:09,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 12:48:09,803 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 12:48:09,804 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 12:48:09,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 12:48:09,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 12:48:09,809 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 12:48:09,811 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 12:48:09,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 12:48:09,817 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 12:48:09,819 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 12:48:09,824 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 12:48:09,829 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 12:48:09,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 12:48:09,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 12:48:09,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 12:48:09,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 12:48:09,843 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 12:48:09,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 12:48:09,844 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 12:48:09,845 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 12:48:09,859 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 12:48:09,859 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 12:48:09,860 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 12:48:09,861 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 12:48:09,861 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 12:48:09,861 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 12:48:09,861 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 12:48:09,862 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 12:48:09,862 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 12:48:09,862 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 12:48:09,862 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 12:48:09,862 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 12:48:09,863 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 12:48:09,863 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 12:48:09,863 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 12:48:09,863 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 12:48:09,863 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 12:48:09,864 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 12:48:09,864 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 12:48:09,864 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 12:48:09,866 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 12:48:09,867 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:48:09,867 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 12:48:09,867 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 12:48:09,867 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 12:48:09,867 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 12:48:09,868 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 12:48:09,868 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 12:48:09,868 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 12:48:10,154 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 12:48:10,171 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 12:48:10,175 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 12:48:10,177 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 12:48:10,177 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 12:48:10,178 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test07.c [2019-10-07 12:48:10,258 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0695c1cda/c22ded5a106e49c0a8b4eb2963901171/FLAG773c61418 [2019-10-07 12:48:10,736 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 12:48:10,737 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test07.c [2019-10-07 12:48:10,744 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0695c1cda/c22ded5a106e49c0a8b4eb2963901171/FLAG773c61418 [2019-10-07 12:48:11,081 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0695c1cda/c22ded5a106e49c0a8b4eb2963901171 [2019-10-07 12:48:11,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 12:48:11,094 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 12:48:11,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 12:48:11,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 12:48:11,099 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 12:48:11,100 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:48:11" (1/1) ... [2019-10-07 12:48:11,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b8e4c09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:11, skipping insertion in model container [2019-10-07 12:48:11,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:48:11" (1/1) ... [2019-10-07 12:48:11,112 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 12:48:11,131 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 12:48:11,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:48:11,334 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 12:48:11,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:48:11,370 INFO L192 MainTranslator]: Completed translation [2019-10-07 12:48:11,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:11 WrapperNode [2019-10-07 12:48:11,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 12:48:11,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 12:48:11,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 12:48:11,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 12:48:11,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:11" (1/1) ... [2019-10-07 12:48:11,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:11" (1/1) ... [2019-10-07 12:48:11,473 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:11" (1/1) ... [2019-10-07 12:48:11,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:11" (1/1) ... [2019-10-07 12:48:11,488 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:11" (1/1) ... [2019-10-07 12:48:11,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:11" (1/1) ... [2019-10-07 12:48:11,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:11" (1/1) ... [2019-10-07 12:48:11,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 12:48:11,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 12:48:11,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 12:48:11,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 12:48:11,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:11" (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 12:48:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 12:48:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 12:48:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-10-07 12:48:11,546 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 12:48:11,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 12:48:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-10-07 12:48:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 12:48:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 12:48:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 12:48:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 12:48:11,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 12:48:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 12:48:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 12:48:11,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 12:48:11,850 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 12:48:11,851 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 12:48:11,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:48:11 BoogieIcfgContainer [2019-10-07 12:48:11,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 12:48:11,854 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 12:48:11,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 12:48:11,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 12:48:11,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:48:11" (1/3) ... [2019-10-07 12:48:11,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793c2b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:48:11, skipping insertion in model container [2019-10-07 12:48:11,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:11" (2/3) ... [2019-10-07 12:48:11,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@793c2b3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:48:11, skipping insertion in model container [2019-10-07 12:48:11,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:48:11" (3/3) ... [2019-10-07 12:48:11,864 INFO L109 eAbstractionObserver]: Analyzing ICFG test07.c [2019-10-07 12:48:11,880 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 12:48:11,889 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 12:48:11,927 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 12:48:11,954 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 12:48:11,955 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 12:48:11,955 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 12:48:11,955 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 12:48:11,955 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 12:48:11,955 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 12:48:11,956 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 12:48:11,956 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 12:48:11,971 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-10-07 12:48:11,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-07 12:48:11,977 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:48:11,978 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:48:11,980 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:48:11,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:48:11,986 INFO L82 PathProgramCache]: Analyzing trace with hash 245853373, now seen corresponding path program 1 times [2019-10-07 12:48:11,992 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:48:11,993 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:48:11,993 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:48:11,993 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:48:11,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:48:12,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:48:12,504 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2019-10-07 12:48:12,606 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 12:48:12,607 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:48:12,608 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:48:12,608 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-07 12:48:12,613 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-07 12:48:12,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-07 12:48:12,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-07 12:48:12,632 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 8 states. [2019-10-07 12:48:12,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:48:12,913 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2019-10-07 12:48:12,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-07 12:48:12,915 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2019-10-07 12:48:12,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:48:12,923 INFO L225 Difference]: With dead ends: 20 [2019-10-07 12:48:12,923 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 12:48:12,927 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2019-10-07 12:48:12,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 12:48:12,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 12:48:12,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 12:48:12,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 12:48:12,951 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-10-07 12:48:12,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:48:12,951 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 12:48:12,951 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-07 12:48:12,952 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 12:48:12,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 12:48:12,956 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 12:48:13,135 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) [2019-10-07 12:48:13,135 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 12:48:13,136 INFO L443 ceAbstractionStarter]: For program point fEXIT(lines 7 15) no Hoare annotation was computed. [2019-10-07 12:48:13,136 INFO L439 ceAbstractionStarter]: At program point fENTRY(lines 7 15) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= 1 (select (select |#memory_int| ~p2~0.base) ~p2~0.offset))) (= |old(~p1~0.base)| ~p2~0.base) (not (= |~#a~0.offset| |old(~p1~0.offset)|)) (and (= |old(~p1~0.offset)| ~p1~0.offset) (= |~#a~0.base| ~p1~0.base)) (not (= |old(~p1~0.base)| |~#a~0.base|))) [2019-10-07 12:48:13,136 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 12:48:13,136 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (not (= |~#b~0.base| |~#a~0.base|)) [2019-10-07 12:48:13,137 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 12:48:13,137 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 12:48:13,137 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 35) no Hoare annotation was computed. [2019-10-07 12:48:13,137 INFO L439 ceAbstractionStarter]: At program point L30(lines 17 37) the Hoare annotation is: (= |~#a~0.base| |~#b~0.base|) [2019-10-07 12:48:13,137 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 17 37) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (and (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base))) [2019-10-07 12:48:13,138 INFO L443 ceAbstractionStarter]: For program point L29(lines 29 31) no Hoare annotation was computed. [2019-10-07 12:48:13,138 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 17 37) no Hoare annotation was computed. [2019-10-07 12:48:13,138 INFO L439 ceAbstractionStarter]: At program point L27(line 27) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (and (not (= ~p2~0.base ~p1~0.base)) (= 1 (select (select |#memory_int| ~p2~0.base) ~p2~0.offset)) (= ~p1~0.offset |~#a~0.offset|) (= |~#a~0.base| ~p1~0.base))) [2019-10-07 12:48:13,138 INFO L443 ceAbstractionStarter]: For program point L27-1(line 27) no Hoare annotation was computed. [2019-10-07 12:48:13,138 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 17 37) no Hoare annotation was computed. [2019-10-07 12:48:13,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 12:48:13 BoogieIcfgContainer [2019-10-07 12:48:13,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 12:48:13,157 INFO L168 Benchmark]: Toolchain (without parser) took 2062.17 ms. Allocated memory was 138.9 MB in the beginning and 236.5 MB in the end (delta: 97.5 MB). Free memory was 102.4 MB in the beginning and 195.5 MB in the end (delta: -93.1 MB). Peak memory consumption was 83.3 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:13,158 INFO L168 Benchmark]: CDTParser took 1.42 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 12:48:13,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.81 ms. Allocated memory is still 138.9 MB. Free memory was 102.2 MB in the beginning and 92.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:13,160 INFO L168 Benchmark]: Boogie Preprocessor took 121.44 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.5 MB in the beginning and 181.3 MB in the end (delta: -88.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:13,161 INFO L168 Benchmark]: RCFGBuilder took 358.57 ms. Allocated memory is still 202.9 MB. Free memory was 181.3 MB in the beginning and 163.9 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:13,162 INFO L168 Benchmark]: TraceAbstraction took 1300.46 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 163.9 MB in the beginning and 195.5 MB in the end (delta: -31.6 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:13,167 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.42 ms. Allocated memory is still 138.9 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.81 ms. Allocated memory is still 138.9 MB. Free memory was 102.2 MB in the beginning and 92.5 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 121.44 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 92.5 MB in the beginning and 181.3 MB in the end (delta: -88.8 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 358.57 ms. Allocated memory is still 202.9 MB. Free memory was 181.3 MB in the beginning and 163.9 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1300.46 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 163.9 MB in the beginning and 195.5 MB in the end (delta: -31.6 MB). Peak memory consumption was 80.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 35]: 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: 17]: Loop Invariant Derived loop invariant: a == b - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 8 SDtfs, 3 SDslu, 22 SDs, 0 SdLazy, 41 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 78 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 1010 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...