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/test14.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 12:48:25,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 12:48:25,146 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 12:48:25,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 12:48:25,162 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 12:48:25,164 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 12:48:25,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 12:48:25,167 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 12:48:25,169 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 12:48:25,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 12:48:25,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 12:48:25,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 12:48:25,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 12:48:25,175 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 12:48:25,176 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 12:48:25,178 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 12:48:25,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 12:48:25,179 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 12:48:25,181 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 12:48:25,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 12:48:25,184 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 12:48:25,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 12:48:25,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 12:48:25,187 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 12:48:25,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 12:48:25,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 12:48:25,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 12:48:25,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 12:48:25,191 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 12:48:25,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 12:48:25,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 12:48:25,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 12:48:25,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 12:48:25,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 12:48:25,196 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 12:48:25,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 12:48:25,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 12:48:25,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 12:48:25,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 12:48:25,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 12:48:25,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 12:48:25,200 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 12:48:25,219 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 12:48:25,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 12:48:25,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 12:48:25,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 12:48:25,222 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 12:48:25,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 12:48:25,222 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 12:48:25,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 12:48:25,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 12:48:25,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 12:48:25,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 12:48:25,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 12:48:25,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 12:48:25,224 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 12:48:25,224 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 12:48:25,224 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 12:48:25,225 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 12:48:25,225 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 12:48:25,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 12:48:25,225 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 12:48:25,226 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 12:48:25,226 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:48:25,226 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 12:48:25,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 12:48:25,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 12:48:25,227 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 12:48:25,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 12:48:25,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 12:48:25,228 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 12:48:25,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 12:48:25,534 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 12:48:25,538 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 12:48:25,539 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 12:48:25,539 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 12:48:25,540 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test14.c [2019-10-07 12:48:25,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98cf05e79/22c45b76f496403097eca0283b7bae4d/FLAG8291b8c9b [2019-10-07 12:48:26,045 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 12:48:26,047 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test14.c [2019-10-07 12:48:26,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98cf05e79/22c45b76f496403097eca0283b7bae4d/FLAG8291b8c9b [2019-10-07 12:48:26,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98cf05e79/22c45b76f496403097eca0283b7bae4d [2019-10-07 12:48:26,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 12:48:26,466 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 12:48:26,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 12:48:26,467 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 12:48:26,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 12:48:26,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:48:26" (1/1) ... [2019-10-07 12:48:26,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d9af163 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:26, skipping insertion in model container [2019-10-07 12:48:26,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:48:26" (1/1) ... [2019-10-07 12:48:26,481 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 12:48:26,502 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 12:48:26,701 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:48:26,721 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 12:48:26,742 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:48:26,760 INFO L192 MainTranslator]: Completed translation [2019-10-07 12:48:26,760 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:26 WrapperNode [2019-10-07 12:48:26,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 12:48:26,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 12:48:26,762 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 12:48:26,762 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 12:48:26,858 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:26" (1/1) ... [2019-10-07 12:48:26,858 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:26" (1/1) ... [2019-10-07 12:48:26,868 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:26" (1/1) ... [2019-10-07 12:48:26,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:26" (1/1) ... [2019-10-07 12:48:26,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:26" (1/1) ... [2019-10-07 12:48:26,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:26" (1/1) ... [2019-10-07 12:48:26,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:26" (1/1) ... [2019-10-07 12:48:26,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 12:48:26,901 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 12:48:26,901 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 12:48:26,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 12:48:26,902 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:26" (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 12:48:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 12:48:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 12:48:26,958 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2019-10-07 12:48:26,959 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 12:48:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 12:48:26,959 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 12:48:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-07 12:48:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2019-10-07 12:48:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 12:48:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 12:48:26,960 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 12:48:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 12:48:26,961 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 12:48:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 12:48:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 12:48:26,962 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 12:48:27,361 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 12:48:27,361 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 12:48:27,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:48:27 BoogieIcfgContainer [2019-10-07 12:48:27,362 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 12:48:27,363 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 12:48:27,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 12:48:27,366 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 12:48:27,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:48:26" (1/3) ... [2019-10-07 12:48:27,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54808a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:48:27, skipping insertion in model container [2019-10-07 12:48:27,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:26" (2/3) ... [2019-10-07 12:48:27,368 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54808a74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:48:27, skipping insertion in model container [2019-10-07 12:48:27,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:48:27" (3/3) ... [2019-10-07 12:48:27,370 INFO L109 eAbstractionObserver]: Analyzing ICFG test14.c [2019-10-07 12:48:27,379 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 12:48:27,387 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 12:48:27,398 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 12:48:27,420 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 12:48:27,420 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 12:48:27,420 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 12:48:27,421 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 12:48:27,421 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 12:48:27,421 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 12:48:27,421 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 12:48:27,421 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 12:48:27,438 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-10-07 12:48:27,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-10-07 12:48:27,443 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:48:27,444 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:48:27,446 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:48:27,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:48:27,452 INFO L82 PathProgramCache]: Analyzing trace with hash 1662386553, now seen corresponding path program 1 times [2019-10-07 12:48:27,461 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:48:27,461 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:48:27,462 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:48:27,462 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:48:27,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:48:27,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:48:27,670 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 12:48:27,671 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:48:27,672 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:48:27,673 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-07 12:48:27,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-07 12:48:27,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-07 12:48:27,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-07 12:48:27,694 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 4 states. [2019-10-07 12:48:27,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:48:27,730 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2019-10-07 12:48:27,730 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-07 12:48:27,731 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-10-07 12:48:27,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:48:27,738 INFO L225 Difference]: With dead ends: 20 [2019-10-07 12:48:27,738 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 12:48:27,742 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-07 12:48:27,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 12:48:27,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 12:48:27,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 12:48:27,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 12:48:27,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-10-07 12:48:27,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:48:27,768 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 12:48:27,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-07 12:48:27,769 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 12:48:27,769 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 12:48:27,774 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 12:48:27,796 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-07 12:48:27,796 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 12:48:27,797 INFO L446 ceAbstractionStarter]: At program point get_dummyENTRY(lines 7 10) the Hoare annotation is: true [2019-10-07 12:48:27,797 INFO L443 ceAbstractionStarter]: For program point get_dummyEXIT(lines 7 10) no Hoare annotation was computed. [2019-10-07 12:48:27,797 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 12:48:27,797 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-07 12:48:27,798 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 12:48:27,798 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 12:48:27,798 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 25) no Hoare annotation was computed. [2019-10-07 12:48:27,798 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 12 27) the Hoare annotation is: true [2019-10-07 12:48:27,799 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 12 27) no Hoare annotation was computed. [2019-10-07 12:48:27,799 INFO L439 ceAbstractionStarter]: At program point L20(lines 12 27) the Hoare annotation is: false [2019-10-07 12:48:27,799 INFO L439 ceAbstractionStarter]: At program point L17(line 17) the Hoare annotation is: (not (= main_~pc~0.base 0)) [2019-10-07 12:48:27,799 INFO L443 ceAbstractionStarter]: For program point L17-1(line 17) no Hoare annotation was computed. [2019-10-07 12:48:27,800 INFO L443 ceAbstractionStarter]: For program point L18-2(lines 18 21) no Hoare annotation was computed. [2019-10-07 12:48:27,800 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 12 27) no Hoare annotation was computed. [2019-10-07 12:48:27,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 12:48:27 BoogieIcfgContainer [2019-10-07 12:48:27,808 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 12:48:27,811 INFO L168 Benchmark]: Toolchain (without parser) took 1343.76 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 104.0 MB in the beginning and 132.6 MB in the end (delta: -28.7 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:27,812 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 12:48:27,813 INFO L168 Benchmark]: CACSL2BoogieTranslator took 294.34 ms. Allocated memory is still 145.8 MB. Free memory was 103.5 MB in the beginning and 93.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:27,814 INFO L168 Benchmark]: Boogie Preprocessor took 139.50 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 93.5 MB in the beginning and 181.1 MB in the end (delta: -87.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:27,815 INFO L168 Benchmark]: RCFGBuilder took 461.27 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 158.3 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:27,816 INFO L168 Benchmark]: TraceAbstraction took 444.28 ms. Allocated memory is still 202.9 MB. Free memory was 157.7 MB in the beginning and 132.6 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:27,820 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 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 294.34 ms. Allocated memory is still 145.8 MB. Free memory was 103.5 MB in the beginning and 93.5 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 139.50 ms. Allocated memory was 145.8 MB in the beginning and 202.9 MB in the end (delta: 57.1 MB). Free memory was 93.5 MB in the beginning and 181.1 MB in the end (delta: -87.7 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 461.27 ms. Allocated memory is still 202.9 MB. Free memory was 181.1 MB in the beginning and 158.3 MB in the end (delta: 22.8 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 444.28 ms. Allocated memory is still 202.9 MB. Free memory was 157.7 MB in the beginning and 132.6 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 25]: 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: 12]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 16 locations, 1 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 2 SDslu, 19 SDs, 0 SdLazy, 3 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 10 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 170 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...