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-acceleration/array_1-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 03:00:55,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 03:00:55,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 03:00:55,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 03:00:55,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 03:00:55,924 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 03:00:55,926 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 03:00:55,928 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 03:00:55,929 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 03:00:55,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 03:00:55,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 03:00:55,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 03:00:55,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 03:00:55,934 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 03:00:55,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 03:00:55,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 03:00:55,936 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 03:00:55,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 03:00:55,941 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 03:00:55,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 03:00:55,948 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 03:00:55,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 03:00:55,953 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 03:00:55,954 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 03:00:55,960 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 03:00:55,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 03:00:55,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 03:00:55,975 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 03:00:55,975 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 [2019-10-15 03:00:55,991 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 03:00:55,991 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 03:00:55,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 03:00:55,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 03:00:55,993 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 03:00:55,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 03:00:55,994 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 03:00:55,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 03:00:55,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 03:00:55,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 03:00:55,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 03:00:55,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 03:00:55,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 03:00:55,995 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 03:00:55,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 03:00:55,996 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 03:00:55,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 03:00:55,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 03:00:55,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 03:00:55,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 03:00:55,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 03:00:55,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 03:00:55,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 03:00:55,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 03:00:55,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 03:00:55,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 03:00:55,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 03:00:55,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 03:00:55,998 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 [2019-10-15 03:00:56,312 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 03:00:56,325 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 03:00:56,329 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 03:00:56,330 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 03:00:56,331 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 03:00:56,331 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_1-2.c [2019-10-15 03:00:56,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe10679ef/9092fc5b4f674a81a2599259ad0989df/FLAGfdc5018dd [2019-10-15 03:00:56,798 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 03:00:56,800 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_1-2.c [2019-10-15 03:00:56,807 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe10679ef/9092fc5b4f674a81a2599259ad0989df/FLAGfdc5018dd [2019-10-15 03:00:57,183 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fe10679ef/9092fc5b4f674a81a2599259ad0989df [2019-10-15 03:00:57,193 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 03:00:57,195 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 03:00:57,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 03:00:57,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 03:00:57,200 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 03:00:57,201 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:00:57" (1/1) ... [2019-10-15 03:00:57,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6912290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:57, skipping insertion in model container [2019-10-15 03:00:57,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 03:00:57" (1/1) ... [2019-10-15 03:00:57,212 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 03:00:57,228 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 03:00:57,389 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:00:57,402 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 03:00:57,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 03:00:57,447 INFO L192 MainTranslator]: Completed translation [2019-10-15 03:00:57,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:57 WrapperNode [2019-10-15 03:00:57,447 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 03:00:57,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 03:00:57,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 03:00:57,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 03:00:57,545 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:57" (1/1) ... [2019-10-15 03:00:57,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:57" (1/1) ... [2019-10-15 03:00:57,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:57" (1/1) ... [2019-10-15 03:00:57,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:57" (1/1) ... [2019-10-15 03:00:57,559 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:57" (1/1) ... [2019-10-15 03:00:57,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:57" (1/1) ... [2019-10-15 03:00:57,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:57" (1/1) ... [2019-10-15 03:00:57,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 03:00:57,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 03:00:57,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 03:00:57,574 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 03:00:57,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:57" (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 [2019-10-15 03:00:57,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 03:00:57,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 03:00:57,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 03:00:57,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 03:00:57,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 03:00:57,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 03:00:57,639 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 03:00:57,640 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-15 03:00:57,640 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-15 03:00:57,640 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-15 03:00:57,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-15 03:00:57,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 03:00:57,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 03:00:57,900 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 03:00:57,900 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 03:00:57,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:00:57 BoogieIcfgContainer [2019-10-15 03:00:57,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 03:00:57,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 03:00:57,903 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 03:00:57,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 03:00:57,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 03:00:57" (1/3) ... [2019-10-15 03:00:57,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ec708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:00:57, skipping insertion in model container [2019-10-15 03:00:57,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 03:00:57" (2/3) ... [2019-10-15 03:00:57,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ec708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 03:00:57, skipping insertion in model container [2019-10-15 03:00:57,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 03:00:57" (3/3) ... [2019-10-15 03:00:57,909 INFO L109 eAbstractionObserver]: Analyzing ICFG array_1-2.c [2019-10-15 03:00:57,919 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 03:00:57,925 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 03:00:57,938 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 03:00:57,962 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 03:00:57,965 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 03:00:57,965 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 03:00:57,965 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 03:00:57,966 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 03:00:57,966 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 03:00:57,966 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 03:00:57,966 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 03:00:57,991 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-10-15 03:00:57,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 03:00:57,996 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:00:57,997 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:00:57,999 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:00:58,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:00:58,004 INFO L82 PathProgramCache]: Analyzing trace with hash 1959451811, now seen corresponding path program 1 times [2019-10-15 03:00:58,012 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:00:58,013 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21155661] [2019-10-15 03:00:58,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:58,013 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:58,013 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:00:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:58,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:00:58,163 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21155661] [2019-10-15 03:00:58,163 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 03:00:58,164 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 03:00:58,164 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876793011] [2019-10-15 03:00:58,168 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 03:00:58,169 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:00:58,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 03:00:58,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:00:58,186 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-10-15 03:00:58,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:00:58,225 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2019-10-15 03:00:58,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 03:00:58,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-10-15 03:00:58,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:00:58,237 INFO L225 Difference]: With dead ends: 29 [2019-10-15 03:00:58,237 INFO L226 Difference]: Without dead ends: 12 [2019-10-15 03:00:58,241 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 03:00:58,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-10-15 03:00:58,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-10-15 03:00:58,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-10-15 03:00:58,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-10-15 03:00:58,293 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-10-15 03:00:58,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:00:58,294 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-10-15 03:00:58,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 03:00:58,295 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-10-15 03:00:58,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-15 03:00:58,297 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:00:58,297 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:00:58,298 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:00:58,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:00:58,300 INFO L82 PathProgramCache]: Analyzing trace with hash 504932467, now seen corresponding path program 1 times [2019-10-15 03:00:58,300 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:00:58,300 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424836013] [2019-10-15 03:00:58,301 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:58,301 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:00:58,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:00:58,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:58,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:00:58,436 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424836013] [2019-10-15 03:00:58,436 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885748278] [2019-10-15 03:00:58,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:00:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:00:58,518 INFO L256 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 3 conjunts are in the unsatisfiable core [2019-10-15 03:00:58,525 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:00:58,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:00:58,561 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:00:58,615 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:00:58,616 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1044861134] [2019-10-15 03:00:58,639 INFO L162 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-10-15 03:00:58,640 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 03:00:58,659 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 03:00:58,673 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 03:00:58,674 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 03:00:58,849 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 21 for LOIs [2019-10-15 03:00:59,251 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 29 for LOIs [2019-10-15 03:00:59,290 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2019-10-15 03:00:59,298 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-15 03:00:59,719 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 4 imperfect interpolant sequences. [2019-10-15 03:00:59,719 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4, 9] total 16 [2019-10-15 03:00:59,719 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000440239] [2019-10-15 03:00:59,723 INFO L442 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-10-15 03:00:59,724 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:00:59,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-10-15 03:00:59,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-10-15 03:00:59,725 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 16 states. [2019-10-15 03:01:00,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:01:00,290 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2019-10-15 03:01:00,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-15 03:01:00,290 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 11 [2019-10-15 03:01:00,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:01:00,291 INFO L225 Difference]: With dead ends: 20 [2019-10-15 03:01:00,292 INFO L226 Difference]: Without dead ends: 15 [2019-10-15 03:01:00,293 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=129, Invalid=521, Unknown=0, NotChecked=0, Total=650 [2019-10-15 03:01:00,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-10-15 03:01:00,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-10-15 03:01:00,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-10-15 03:01:00,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2019-10-15 03:01:00,299 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2019-10-15 03:01:00,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:01:00,299 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2019-10-15 03:01:00,299 INFO L463 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-10-15 03:01:00,300 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2019-10-15 03:01:00,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-10-15 03:01:00,300 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 03:01:00,301 INFO L380 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 03:01:00,504 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:01:00,504 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 03:01:00,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 03:01:00,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1070026915, now seen corresponding path program 2 times [2019-10-15 03:01:00,505 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 03:01:00,505 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079818935] [2019-10-15 03:01:00,505 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:01:00,506 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 03:01:00,506 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 03:01:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 03:01:00,602 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 03:01:00,602 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079818935] [2019-10-15 03:01:00,603 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073732529] [2019-10-15 03:01:00,603 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:01:00,654 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-10-15 03:01:00,654 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-15 03:01:00,655 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 16 conjunts are in the unsatisfiable core [2019-10-15 03:01:00,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 03:01:00,769 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:01:00,770 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 03:01:00,889 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-10-15 03:01:00,889 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-10-15 03:01:00,889 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [7, 6] imperfect sequences [7] total 15 [2019-10-15 03:01:00,890 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088982311] [2019-10-15 03:01:00,890 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-15 03:01:00,890 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 03:01:00,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-15 03:01:00,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2019-10-15 03:01:00,891 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 10 states. [2019-10-15 03:01:02,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 03:01:02,994 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2019-10-15 03:01:02,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 03:01:02,995 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 14 [2019-10-15 03:01:02,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 03:01:02,995 INFO L225 Difference]: With dead ends: 15 [2019-10-15 03:01:02,995 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 03:01:02,996 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2019-10-15 03:01:02,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 03:01:02,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 03:01:02,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 03:01:02,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 03:01:02,997 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-10-15 03:01:02,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 03:01:02,998 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 03:01:02,998 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-15 03:01:02,998 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 03:01:02,998 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 03:01:03,202 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 03:01:03,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 03:01:03,457 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |old(#NULL.base)| |#NULL.base|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-15 03:01:03,457 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:01:03,457 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 03:01:03,457 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= |#NULL.base| 0) (= 0 (select |#valid| 0)) (<= 0 |#NULL.base|) (<= |#NULL.offset| 0) (<= 0 |#NULL.offset|)) [2019-10-15 03:01:03,457 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 03:01:03,457 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 03:01:03,458 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 10 19) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (not (<= 0 |#NULL.base|)) (and (= |#valid| |old(#valid)|) (= |#memory_int| |old(#memory_int)|) (= |old(#length)| |#length|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-15 03:01:03,458 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 10 19) no Hoare annotation was computed. [2019-10-15 03:01:03,458 INFO L439 ceAbstractionStarter]: At program point L18(line 18) the Hoare annotation is: (or (not (<= |#NULL.offset| 0)) (and (exists ((v_main_~i~0_19 Int)) (and (<= main_~i~0 (+ v_main_~i~0_19 1)) (< v_main_~i~0_19 1024) (= v_main_~i~0_19 (select (select |#memory_int| |main_~#A~0.base|) (+ (* v_main_~i~0_19 4) |main_~#A~0.offset|))))) (= (select (select |#memory_int| |main_~#A~0.base|) (+ |main_~#A~0.offset| 4092)) |main_#t~mem1|) (= 0 (select |#valid| 0)) (= |main_~#A~0.offset| 0) (<= 1024 main_~i~0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0))) [2019-10-15 03:01:03,458 INFO L443 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2019-10-15 03:01:03,458 INFO L439 ceAbstractionStarter]: At program point L14-3(lines 14 16) the Hoare annotation is: (let ((.cse0 (= 0 (select |#valid| 0))) (.cse1 (= |main_~#A~0.offset| 0))) (or (not (<= |#NULL.offset| 0)) (and .cse0 .cse1 (= main_~i~0 0)) (not (<= 0 |#NULL.base|)) (not (= 0 (select |old(#valid)| 0))) (and (exists ((v_main_~i~0_19 Int)) (and (<= main_~i~0 (+ v_main_~i~0_19 1)) (< v_main_~i~0_19 1024) (= v_main_~i~0_19 (select (select |#memory_int| |main_~#A~0.base|) (+ (* v_main_~i~0_19 4) |main_~#A~0.offset|))))) (<= 0 main_~i~0) .cse0 .cse1) (not (<= 0 |#NULL.offset|)) (not (<= |#NULL.base| 0)))) [2019-10-15 03:01:03,459 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-15 03:01:03,459 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:01:03,459 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-15 03:01:03,459 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-15 03:01:03,459 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-15 03:01:03,459 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-15 03:01:03,467 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,470 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,471 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,471 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,473 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,473 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 03:01:03,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,474 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,482 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,482 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,483 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,483 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,486 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,486 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,487 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 03:01:03,487 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,488 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 03:01:03 BoogieIcfgContainer [2019-10-15 03:01:03,497 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 03:01:03,500 INFO L168 Benchmark]: Toolchain (without parser) took 6304.99 ms. Allocated memory was 143.7 MB in the beginning and 249.0 MB in the end (delta: 105.4 MB). Free memory was 101.5 MB in the beginning and 138.4 MB in the end (delta: -36.9 MB). Peak memory consumption was 68.5 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:03,501 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 03:01:03,502 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.59 ms. Allocated memory is still 143.7 MB. Free memory was 101.3 MB in the beginning and 91.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:03,506 INFO L168 Benchmark]: Boogie Preprocessor took 125.20 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 91.6 MB in the beginning and 179.9 MB in the end (delta: -88.3 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:03,508 INFO L168 Benchmark]: RCFGBuilder took 328.16 ms. Allocated memory is still 201.9 MB. Free memory was 179.9 MB in the beginning and 165.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:03,511 INFO L168 Benchmark]: TraceAbstraction took 5594.15 ms. Allocated memory was 201.9 MB in the beginning and 249.0 MB in the end (delta: 47.2 MB). Free memory was 165.0 MB in the beginning and 138.4 MB in the end (delta: 26.6 MB). Peak memory consumption was 73.8 MB. Max. memory is 7.1 GB. [2019-10-15 03:01:03,518 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 143.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 251.59 ms. Allocated memory is still 143.7 MB. Free memory was 101.3 MB in the beginning and 91.6 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.20 ms. Allocated memory was 143.7 MB in the beginning and 201.9 MB in the end (delta: 58.2 MB). Free memory was 91.6 MB in the beginning and 179.9 MB in the end (delta: -88.3 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 328.16 ms. Allocated memory is still 201.9 MB. Free memory was 179.9 MB in the beginning and 165.7 MB in the end (delta: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5594.15 ms. Allocated memory was 201.9 MB in the beginning and 249.0 MB in the end (delta: 47.2 MB). Free memory was 165.0 MB in the beginning and 138.4 MB in the end (delta: 26.6 MB). Peak memory consumption was 73.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL * 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 [2019-10-15 03:01:03,536 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,536 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,536 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,538 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,538 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,538 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 03:01:03,538 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,539 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,541 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~i~0_19,QUANTIFIED] [2019-10-15 03:01:03,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-15 03:01:03,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2019-10-15 03:01:03,542 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL Derived loop invariant: (((((!(#NULL <= 0) || ((0 == \valid[0] && A == 0) && i == 0)) || !(0 <= #NULL)) || !(0 == \old(\valid)[0])) || ((((\exists v_main_~i~0_19 : int :: (i <= v_main_~i~0_19 + 1 && v_main_~i~0_19 < 1024) && v_main_~i~0_19 == unknown-#memory_int-unknown[A][v_main_~i~0_19 * 4 + A]) && 0 <= i) && 0 == \valid[0]) && A == 0)) || !(0 <= #NULL)) || !(#NULL <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Result: SAFE, OverallTime: 5.5s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 27 SDtfs, 16 SDslu, 57 SDs, 0 SdLazy, 73 SolverSat, 16 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 1.1s 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 14 NumberOfFragments, 196 HoareAnnotationTreeSize, 9 FomulaSimplifications, 153 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 244 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 60 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 78 ConstructedInterpolants, 1 QuantifiedInterpolants, 2144 SizeOfPredicates, 11 NumberOfNonLiveVariables, 108 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 20/33 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 659, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 21, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 10, TOOLS_POST_TIME[ms]: 91, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME[ms]: 17, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 2, TOOLS_QUANTIFIERELIM_APPLICATIONS: 17, TOOLS_QUANTIFIERELIM_TIME[ms]: 97, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 47, FLUID_QUERY_TIME[ms]: 6, FLUID_QUERIES: 24, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 18, DOMAIN_JOIN_TIME[ms]: 306, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 132, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 15, DOMAIN_ISBOTTOM_APPLICATIONS: 1, DOMAIN_ISBOTTOM_TIME[ms]: 2, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 300, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 300, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME[ms]: 70, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 69, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 6, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 16, DAG_COMPRESSION_PROCESSED_NODES: 57, DAG_COMPRESSION_RETAINED_NODES: 42, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...