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/test21-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 12:48:38,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 12:48:38,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 12:48:38,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 12:48:38,398 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 12:48:38,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 12:48:38,403 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 12:48:38,418 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 12:48:38,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 12:48:38,423 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 12:48:38,425 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 12:48:38,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 12:48:38,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 12:48:38,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 12:48:38,430 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 12:48:38,431 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 12:48:38,433 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 12:48:38,434 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 12:48:38,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 12:48:38,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 12:48:38,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 12:48:38,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 12:48:38,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 12:48:38,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 12:48:38,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-07 12:48:38,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 12:48:38,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 12:48:38,452 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 12:48:38,453 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 12:48:38,454 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 12:48:38,455 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 12:48:38,456 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 12:48:38,456 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 12:48:38,456 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 12:48:38,457 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 12:48:38,458 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 12:48:38,459 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 12:48:38,479 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 12:48:38,480 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 12:48:38,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 12:48:38,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 12:48:38,482 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 12:48:38,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 12:48:38,482 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 12:48:38,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 12:48:38,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 12:48:38,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 12:48:38,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 12:48:38,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 12:48:38,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 12:48:38,483 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 12:48:38,484 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 12:48:38,484 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 12:48:38,484 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 12:48:38,484 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 12:48:38,485 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 12:48:38,485 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 12:48:38,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 12:48:38,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 12:48:38,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 12:48:38,486 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 12:48:38,486 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 12:48:38,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 12:48:38,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 12:48:38,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 12:48:38,487 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 12:48:38,817 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 12:48:38,834 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 12:48:38,838 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 12:48:38,840 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 12:48:38,841 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 12:48:38,842 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test21-1.c [2019-10-07 12:48:38,922 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c3fb5859/d6a1eeca75a34c35983a557704714cb4/FLAG88396ffcf [2019-10-07 12:48:39,495 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 12:48:39,496 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test21-1.c [2019-10-07 12:48:39,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c3fb5859/d6a1eeca75a34c35983a557704714cb4/FLAG88396ffcf [2019-10-07 12:48:39,801 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c3fb5859/d6a1eeca75a34c35983a557704714cb4 [2019-10-07 12:48:39,815 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 12:48:39,817 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 12:48:39,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 12:48:39,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 12:48:39,823 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 12:48:39,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:48:39" (1/1) ... [2019-10-07 12:48:39,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4509f92e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:39, skipping insertion in model container [2019-10-07 12:48:39,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 12:48:39" (1/1) ... [2019-10-07 12:48:39,838 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 12:48:39,864 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 12:48:40,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:48:40,105 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 12:48:40,125 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 12:48:40,144 INFO L192 MainTranslator]: Completed translation [2019-10-07 12:48:40,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:40 WrapperNode [2019-10-07 12:48:40,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 12:48:40,146 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 12:48:40,146 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 12:48:40,146 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 12:48:40,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:40" (1/1) ... [2019-10-07 12:48:40,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:40" (1/1) ... [2019-10-07 12:48:40,252 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:40" (1/1) ... [2019-10-07 12:48:40,253 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:40" (1/1) ... [2019-10-07 12:48:40,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:40" (1/1) ... [2019-10-07 12:48:40,267 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:40" (1/1) ... [2019-10-07 12:48:40,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:40" (1/1) ... [2019-10-07 12:48:40,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 12:48:40,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 12:48:40,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 12:48:40,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 12:48:40,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:40" (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 12:48:40,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 12:48:40,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 12:48:40,338 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-07 12:48:40,339 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2019-10-07 12:48:40,339 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-07 12:48:40,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 12:48:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 12:48:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 12:48:40,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-07 12:48:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-07 12:48:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-07 12:48:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2019-10-07 12:48:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-07 12:48:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-07 12:48:40,340 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 12:48:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 12:48:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-07 12:48:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-07 12:48:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 12:48:40,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-07 12:48:40,718 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 12:48:40,719 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-07 12:48:40,721 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:48:40 BoogieIcfgContainer [2019-10-07 12:48:40,721 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 12:48:40,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 12:48:40,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 12:48:40,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 12:48:40,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 12:48:39" (1/3) ... [2019-10-07 12:48:40,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ddcdab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:48:40, skipping insertion in model container [2019-10-07 12:48:40,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 12:48:40" (2/3) ... [2019-10-07 12:48:40,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ddcdab6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 12:48:40, skipping insertion in model container [2019-10-07 12:48:40,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 12:48:40" (3/3) ... [2019-10-07 12:48:40,734 INFO L109 eAbstractionObserver]: Analyzing ICFG test21-1.c [2019-10-07 12:48:40,749 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 12:48:40,762 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 12:48:40,783 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 12:48:40,817 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 12:48:40,817 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 12:48:40,817 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 12:48:40,818 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 12:48:40,818 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 12:48:40,819 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 12:48:40,819 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 12:48:40,819 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 12:48:40,843 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-10-07 12:48:40,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-07 12:48:40,853 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 12:48:40,854 INFO L385 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 12:48:40,857 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 12:48:40,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 12:48:40,864 INFO L82 PathProgramCache]: Analyzing trace with hash -768782672, now seen corresponding path program 1 times [2019-10-07 12:48:40,872 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 12:48:40,873 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:48:40,873 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:48:40,873 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 12:48:40,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 12:48:41,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 12:48:41,224 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-10-07 12:48:41,230 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 12:48:41,231 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 12:48:41,233 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 12:48:41,239 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 12:48:41,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 12:48:41,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 12:48:41,257 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 5 states. [2019-10-07 12:48:41,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 12:48:41,373 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-10-07 12:48:41,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 12:48:41,377 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2019-10-07 12:48:41,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 12:48:41,390 INFO L225 Difference]: With dead ends: 33 [2019-10-07 12:48:41,391 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 12:48:41,400 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-07 12:48:41,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 12:48:41,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 12:48:41,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 12:48:41,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 12:48:41,445 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-10-07 12:48:41,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 12:48:41,446 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 12:48:41,447 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 12:48:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 12:48:41,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 12:48:41,456 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 12:48:41,529 INFO L443 ceAbstractionStarter]: For program point initEXIT(lines 11 18) no Hoare annotation was computed. [2019-10-07 12:48:41,530 INFO L446 ceAbstractionStarter]: At program point initENTRY(lines 11 18) the Hoare annotation is: true [2019-10-07 12:48:41,530 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-07 12:48:41,530 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 12:48:41,531 INFO L446 ceAbstractionStarter]: At program point get_dummyENTRY(lines 20 23) the Hoare annotation is: true [2019-10-07 12:48:41,531 INFO L443 ceAbstractionStarter]: For program point get_dummyEXIT(lines 20 23) no Hoare annotation was computed. [2019-10-07 12:48:41,531 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 12:48:41,531 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-07 12:48:41,531 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 12:48:41,532 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 12:48:41,532 INFO L443 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2019-10-07 12:48:41,532 INFO L443 ceAbstractionStarter]: For program point L35-2(lines 35 37) no Hoare annotation was computed. [2019-10-07 12:48:41,532 INFO L446 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: true [2019-10-07 12:48:41,533 INFO L446 ceAbstractionStarter]: At program point L33-1(line 33) the Hoare annotation is: true [2019-10-07 12:48:41,533 INFO L443 ceAbstractionStarter]: For program point L34-2(lines 34 38) no Hoare annotation was computed. [2019-10-07 12:48:41,533 INFO L443 ceAbstractionStarter]: For program point L33-2(line 33) no Hoare annotation was computed. [2019-10-07 12:48:41,535 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2019-10-07 12:48:41,535 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 30 44) the Hoare annotation is: true [2019-10-07 12:48:41,535 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 30 44) no Hoare annotation was computed. [2019-10-07 12:48:41,536 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 30 44) no Hoare annotation was computed. [2019-10-07 12:48:41,536 INFO L439 ceAbstractionStarter]: At program point L36(lines 31 44) the Hoare annotation is: false [2019-10-07 12:48:41,536 INFO L439 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (and (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2019-10-07 12:48:41,537 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 38) no Hoare annotation was computed. [2019-10-07 12:48:41,537 INFO L443 ceAbstractionStarter]: For program point L35-1(line 35) no Hoare annotation was computed. [2019-10-07 12:48:41,537 INFO L446 ceAbstractionStarter]: At program point checkENTRY(lines 25 28) the Hoare annotation is: true [2019-10-07 12:48:41,538 INFO L443 ceAbstractionStarter]: For program point checkEXIT(lines 25 28) no Hoare annotation was computed. [2019-10-07 12:48:41,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 12:48:41 BoogieIcfgContainer [2019-10-07 12:48:41,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 12:48:41,566 INFO L168 Benchmark]: Toolchain (without parser) took 1746.60 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 100.9 MB in the beginning and 126.8 MB in the end (delta: -25.9 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:41,567 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 144.7 MB. Free memory is still 119.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-07 12:48:41,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.42 ms. Allocated memory is still 144.7 MB. Free memory was 100.9 MB in the beginning and 90.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:41,573 INFO L168 Benchmark]: Boogie Preprocessor took 125.64 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 90.6 MB in the beginning and 180.1 MB in the end (delta: -89.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:41,577 INFO L168 Benchmark]: RCFGBuilder took 449.25 ms. Allocated memory is still 202.4 MB. Free memory was 180.1 MB in the beginning and 160.3 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:41,578 INFO L168 Benchmark]: TraceAbstraction took 838.25 ms. Allocated memory is still 202.4 MB. Free memory was 159.3 MB in the beginning and 126.8 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. [2019-10-07 12:48:41,593 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 144.7 MB. Free memory is still 119.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 327.42 ms. Allocated memory is still 144.7 MB. Free memory was 100.9 MB in the beginning and 90.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.64 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 90.6 MB in the beginning and 180.1 MB in the end (delta: -89.5 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 449.25 ms. Allocated memory is still 202.4 MB. Free memory was 180.1 MB in the beginning and 160.3 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 838.25 ms. Allocated memory is still 202.4 MB. Free memory was 159.3 MB in the beginning and 126.8 MB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: 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: 31]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 26 locations, 1 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 3 SDslu, 67 SDs, 0 SdLazy, 11 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 11 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 17 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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...