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 -i ../../../trunk/examples/svcomp/ldv-regression/test_union_cast-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:08:46,243 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:08:46,246 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:08:46,262 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:08:46,262 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:08:46,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:08:46,266 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:08:46,275 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:08:46,279 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:08:46,282 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:08:46,284 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:08:46,286 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:08:46,286 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:08:46,288 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:08:46,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:08:46,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:08:46,294 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:08:46,294 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:08:46,296 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:08:46,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:08:46,303 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:08:46,304 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:08:46,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:08:46,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:08:46,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:08:46,310 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:08:46,311 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:08:46,312 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:08:46,312 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:08:46,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:08:46,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:08:46,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:08:46,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:08:46,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:08:46,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:08:46,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:08:46,317 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 [2019-10-14 23:08:46,348 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:08:46,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:08:46,352 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:08:46,353 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:08:46,353 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:08:46,353 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:08:46,353 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:08:46,353 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:08:46,354 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:08:46,354 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:08:46,354 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:08:46,356 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:08:46,356 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:08:46,356 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:08:46,357 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:08:46,357 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:08:46,357 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:08:46,357 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:08:46,358 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:08:46,358 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:08:46,358 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:08:46,358 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:08:46,359 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:08:46,359 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:08:46,359 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:08:46,359 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:08:46,359 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:08:46,359 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:08:46,360 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:08:46,646 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:08:46,664 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:08:46,667 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:08:46,669 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:08:46,669 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:08:46,670 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_union_cast-1.i [2019-10-14 23:08:46,734 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc1b39aa0/b705374856004da783ffce9d552a809f/FLAGfd2ef154d [2019-10-14 23:08:47,182 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:08:47,182 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_union_cast-1.i [2019-10-14 23:08:47,189 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc1b39aa0/b705374856004da783ffce9d552a809f/FLAGfd2ef154d [2019-10-14 23:08:47,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc1b39aa0/b705374856004da783ffce9d552a809f [2019-10-14 23:08:47,550 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:08:47,551 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:08:47,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:08:47,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:08:47,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:08:47,561 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:47" (1/1) ... [2019-10-14 23:08:47,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44112ae7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:47, skipping insertion in model container [2019-10-14 23:08:47,565 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:47" (1/1) ... [2019-10-14 23:08:47,573 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:08:47,594 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:08:47,804 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:08:47,808 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:08:47,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:08:47,855 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:08:47,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:47 WrapperNode [2019-10-14 23:08:47,856 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:08:47,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:08:47,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:08:47,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:08:47,951 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:47" (1/1) ... [2019-10-14 23:08:47,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:47" (1/1) ... [2019-10-14 23:08:47,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:47" (1/1) ... [2019-10-14 23:08:47,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:47" (1/1) ... [2019-10-14 23:08:47,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:47" (1/1) ... [2019-10-14 23:08:47,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:47" (1/1) ... [2019-10-14 23:08:47,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:47" (1/1) ... [2019-10-14 23:08:47,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:08:47,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:08:47,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:08:47,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:08:47,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:47" (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 [2019-10-14 23:08:48,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:08:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:08:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-14 23:08:48,037 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:08:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:08:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:08:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-14 23:08:48,037 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2019-10-14 23:08:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2019-10-14 23:08:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:08:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:08:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-14 23:08:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:08:48,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:08:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:08:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:08:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:08:48,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-14 23:08:48,233 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:08:48,234 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 23:08:48,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:48 BoogieIcfgContainer [2019-10-14 23:08:48,235 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:08:48,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:08:48,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:08:48,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:08:48,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:08:47" (1/3) ... [2019-10-14 23:08:48,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161f870b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:48, skipping insertion in model container [2019-10-14 23:08:48,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:47" (2/3) ... [2019-10-14 23:08:48,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@161f870b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:48, skipping insertion in model container [2019-10-14 23:08:48,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:48" (3/3) ... [2019-10-14 23:08:48,265 INFO L109 eAbstractionObserver]: Analyzing ICFG test_union_cast-1.i [2019-10-14 23:08:48,298 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:08:48,314 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:08:48,344 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:08:48,383 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:08:48,384 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:08:48,384 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:08:48,384 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:08:48,384 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:08:48,384 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:08:48,385 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:08:48,385 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:08:48,402 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-10-14 23:08:48,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-14 23:08:48,408 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:48,408 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:48,410 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:48,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:48,415 INFO L82 PathProgramCache]: Analyzing trace with hash -715594688, now seen corresponding path program 1 times [2019-10-14 23:08:48,422 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:48,422 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860913953] [2019-10-14 23:08:48,422 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:48,423 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:48,423 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:48,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:48,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:08:48,697 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860913953] [2019-10-14 23:08:48,698 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:48,698 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-14 23:08:48,698 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795217884] [2019-10-14 23:08:48,703 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-14 23:08:48,703 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:48,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-14 23:08:48,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-14 23:08:48,717 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2019-10-14 23:08:48,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:48,856 INFO L93 Difference]: Finished difference Result 25 states and 24 transitions. [2019-10-14 23:08:48,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-14 23:08:48,858 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-10-14 23:08:48,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:48,864 INFO L225 Difference]: With dead ends: 25 [2019-10-14 23:08:48,865 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:08:48,868 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:08:48,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:08:48,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:08:48,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:08:48,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:08:48,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-14 23:08:48,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:48,897 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:08:48,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-14 23:08:48,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:08:48,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:08:48,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:08:48,978 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:08:48,978 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~CURRENTLY_SAFE~0 |old(~CURRENTLY_SAFE~0)|) (= |#NULL.offset| |old(#NULL.offset)|)) [2019-10-14 23:08:48,979 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:08:48,979 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:08:48,979 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:08:48,979 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:08:48,980 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:08:48,980 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 24 30) the Hoare annotation is: (= |#valid| |old(#valid)|) [2019-10-14 23:08:48,980 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 24 30) no Hoare annotation was computed. [2019-10-14 23:08:48,981 INFO L439 ceAbstractionStarter]: At program point L28(line 28) the Hoare annotation is: (= 10 |main_#t~mem0|) [2019-10-14 23:08:48,981 INFO L443 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2019-10-14 23:08:48,981 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 24 30) no Hoare annotation was computed. [2019-10-14 23:08:48,981 INFO L443 ceAbstractionStarter]: For program point L3-2(lines 2 7) no Hoare annotation was computed. [2019-10-14 23:08:48,981 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 2 7) the Hoare annotation is: true [2019-10-14 23:08:48,982 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2019-10-14 23:08:48,982 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 2 7) no Hoare annotation was computed. [2019-10-14 23:08:48,982 INFO L443 ceAbstractionStarter]: For program point L4(line 4) no Hoare annotation was computed. [2019-10-14 23:08:48,982 INFO L443 ceAbstractionStarter]: For program point L3(lines 3 5) no Hoare annotation was computed. [2019-10-14 23:08:48,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:08:48 BoogieIcfgContainer [2019-10-14 23:08:48,986 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:08:48,989 INFO L168 Benchmark]: Toolchain (without parser) took 1436.75 ms. Allocated memory was 135.8 MB in the beginning and 200.3 MB in the end (delta: 64.5 MB). Free memory was 100.8 MB in the beginning and 126.9 MB in the end (delta: -26.1 MB). Peak memory consumption was 38.4 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:48,990 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 135.8 MB. Free memory is still 118.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-14 23:08:48,991 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.84 ms. Allocated memory is still 135.8 MB. Free memory was 100.4 MB in the beginning and 90.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:48,992 INFO L168 Benchmark]: Boogie Preprocessor took 122.87 ms. Allocated memory was 135.8 MB in the beginning and 200.3 MB in the end (delta: 64.5 MB). Free memory was 90.6 MB in the beginning and 178.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:48,993 INFO L168 Benchmark]: RCFGBuilder took 255.95 ms. Allocated memory is still 200.3 MB. Free memory was 177.8 MB in the beginning and 164.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:48,994 INFO L168 Benchmark]: TraceAbstraction took 743.16 ms. Allocated memory is still 200.3 MB. Free memory was 164.7 MB in the beginning and 126.9 MB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:48,998 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 135.8 MB. Free memory is still 118.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 300.84 ms. Allocated memory is still 135.8 MB. Free memory was 100.4 MB in the beginning and 90.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.87 ms. Allocated memory was 135.8 MB in the beginning and 200.3 MB in the end (delta: 64.5 MB). Free memory was 90.6 MB in the beginning and 178.8 MB in the end (delta: -88.3 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 255.95 ms. Allocated memory is still 200.3 MB. Free memory was 177.8 MB in the beginning and 164.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 743.16 ms. Allocated memory is still 200.3 MB. Free memory was 164.7 MB in the beginning and 126.9 MB in the end (delta: 37.8 MB). Peak memory consumption was 37.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Result: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 8 SDslu, 29 SDs, 0 SdLazy, 21 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 22 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 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...