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/test_union.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 22:53:42,596 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 22:53:42,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 22:53:42,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 22:53:42,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 22:53:42,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 22:53:42,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 22:53:42,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 22:53:42,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 22:53:42,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 22:53:42,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 22:53:42,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 22:53:42,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 22:53:42,646 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 22:53:42,648 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 22:53:42,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 22:53:42,652 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 22:53:42,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 22:53:42,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 22:53:42,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 22:53:42,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 22:53:42,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 22:53:42,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 22:53:42,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 22:53:42,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-13 22:53:42,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-13 22:53:42,668 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-13 22:53:42,669 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-13 22:53:42,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-13 22:53:42,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-13 22:53:42,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-13 22:53:42,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-13 22:53:42,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-13 22:53:42,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-13 22:53:42,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-13 22:53:42,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-13 22:53:42,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-13 22:53:42,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-13 22:53:42,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 22:53:42,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 22:53:42,677 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 22:53:42,678 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 [2019-10-13 22:53:42,707 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 22:53:42,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 22:53:42,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 22:53:42,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 22:53:42,713 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 22:53:42,713 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 22:53:42,713 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 22:53:42,713 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 22:53:42,713 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 22:53:42,714 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 22:53:42,714 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 22:53:42,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 22:53:42,714 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 22:53:42,714 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 22:53:42,715 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 22:53:42,715 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 22:53:42,715 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 22:53:42,715 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 22:53:42,716 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 22:53:42,716 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 22:53:42,716 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 22:53:42,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 22:53:42,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 22:53:42,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 22:53:42,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 22:53:42,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 22:53:42,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 22:53:42,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 22:53:42,721 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 [2019-10-13 22:53:43,042 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 22:53:43,056 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 22:53:43,060 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 22:53:43,062 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 22:53:43,062 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 22:53:43,063 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_union.i [2019-10-13 22:53:43,140 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efb2380ac/5a1ef0444cbe4d478c6737c01aef7cfe/FLAG91808bb50 [2019-10-13 22:53:43,635 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 22:53:43,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_union.i [2019-10-13 22:53:43,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efb2380ac/5a1ef0444cbe4d478c6737c01aef7cfe/FLAG91808bb50 [2019-10-13 22:53:43,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efb2380ac/5a1ef0444cbe4d478c6737c01aef7cfe [2019-10-13 22:53:44,007 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 22:53:44,009 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 22:53:44,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 22:53:44,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 22:53:44,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 22:53:44,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:53:43" (1/1) ... [2019-10-13 22:53:44,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@358d336d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:44, skipping insertion in model container [2019-10-13 22:53:44,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 10:53:43" (1/1) ... [2019-10-13 22:53:44,027 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 22:53:44,047 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 22:53:44,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:53:44,235 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 22:53:44,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 22:53:44,283 INFO L192 MainTranslator]: Completed translation [2019-10-13 22:53:44,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:44 WrapperNode [2019-10-13 22:53:44,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 22:53:44,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 22:53:44,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 22:53:44,287 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 22:53:44,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:44" (1/1) ... [2019-10-13 22:53:44,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:44" (1/1) ... [2019-10-13 22:53:44,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:44" (1/1) ... [2019-10-13 22:53:44,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:44" (1/1) ... [2019-10-13 22:53:44,397 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:44" (1/1) ... [2019-10-13 22:53:44,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:44" (1/1) ... [2019-10-13 22:53:44,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:44" (1/1) ... [2019-10-13 22:53:44,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 22:53:44,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 22:53:44,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 22:53:44,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 22:53:44,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:44" (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 [2019-10-13 22:53:44,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 22:53:44,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 22:53:44,456 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2019-10-13 22:53:44,456 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 22:53:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 22:53:44,456 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2019-10-13 22:53:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 22:53:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-13 22:53:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-13 22:53:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-13 22:53:44,457 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-13 22:53:44,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 22:53:44,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 22:53:44,662 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 22:53:44,663 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-13 22:53:44,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:53:44 BoogieIcfgContainer [2019-10-13 22:53:44,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 22:53:44,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 22:53:44,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 22:53:44,675 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 22:53:44,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 10:53:43" (1/3) ... [2019-10-13 22:53:44,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466bb0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:53:44, skipping insertion in model container [2019-10-13 22:53:44,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 10:53:44" (2/3) ... [2019-10-13 22:53:44,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@466bb0e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 10:53:44, skipping insertion in model container [2019-10-13 22:53:44,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 10:53:44" (3/3) ... [2019-10-13 22:53:44,681 INFO L109 eAbstractionObserver]: Analyzing ICFG test_union.i [2019-10-13 22:53:44,712 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 22:53:44,721 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 22:53:44,749 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 22:53:44,789 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 22:53:44,789 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 22:53:44,790 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 22:53:44,790 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 22:53:44,790 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 22:53:44,791 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 22:53:44,791 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 22:53:44,791 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 22:53:44,813 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-10-13 22:53:44,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-13 22:53:44,818 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 22:53:44,819 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 22:53:44,821 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 22:53:44,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 22:53:44,826 INFO L82 PathProgramCache]: Analyzing trace with hash -113711847, now seen corresponding path program 1 times [2019-10-13 22:53:44,833 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 22:53:44,834 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589148961] [2019-10-13 22:53:44,834 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:53:44,834 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 22:53:44,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 22:53:44,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 22:53:44,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 22:53:44,996 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589148961] [2019-10-13 22:53:44,996 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-13 22:53:44,997 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-13 22:53:44,997 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264943162] [2019-10-13 22:53:45,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-13 22:53:45,002 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 22:53:45,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-13 22:53:45,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:53:45,021 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2019-10-13 22:53:45,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 22:53:45,066 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-10-13 22:53:45,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-13 22:53:45,068 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-10-13 22:53:45,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 22:53:45,076 INFO L225 Difference]: With dead ends: 18 [2019-10-13 22:53:45,076 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 22:53:45,080 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-13 22:53:45,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 22:53:45,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 22:53:45,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 22:53:45,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 22:53:45,109 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-10-13 22:53:45,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 22:53:45,110 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 22:53:45,110 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-13 22:53:45,110 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 22:53:45,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 22:53:45,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 22:53:45,133 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-13 22:53:45,134 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 22:53:45,134 INFO L443 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-10-13 22:53:45,134 INFO L443 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2019-10-13 22:53:45,135 INFO L446 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2019-10-13 22:53:45,136 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 22:53:45,136 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 22:53:45,136 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 22:53:45,136 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 22:53:45,136 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 23 31) the Hoare annotation is: true [2019-10-13 22:53:45,137 INFO L443 ceAbstractionStarter]: For program point L29(line 29) no Hoare annotation was computed. [2019-10-13 22:53:45,137 INFO L439 ceAbstractionStarter]: At program point L29-2(line 29) the Hoare annotation is: false [2019-10-13 22:53:45,137 INFO L443 ceAbstractionStarter]: For program point L29-3(line 29) no Hoare annotation was computed. [2019-10-13 22:53:45,137 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 23 31) no Hoare annotation was computed. [2019-10-13 22:53:45,143 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 10:53:45 BoogieIcfgContainer [2019-10-13 22:53:45,143 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 22:53:45,147 INFO L168 Benchmark]: Toolchain (without parser) took 1136.95 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 101.1 MB in the beginning and 145.4 MB in the end (delta: -44.3 MB). Peak memory consumption was 19.7 MB. Max. memory is 7.1 GB. [2019-10-13 22:53:45,148 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 22:53:45,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 276.42 ms. Allocated memory is still 136.8 MB. Free memory was 100.7 MB in the beginning and 91.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2019-10-13 22:53:45,150 INFO L168 Benchmark]: Boogie Preprocessor took 114.98 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 91.3 MB in the beginning and 179.5 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2019-10-13 22:53:45,151 INFO L168 Benchmark]: RCFGBuilder took 263.92 ms. Allocated memory is still 200.8 MB. Free memory was 179.5 MB in the beginning and 167.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-10-13 22:53:45,152 INFO L168 Benchmark]: TraceAbstraction took 475.97 ms. Allocated memory is still 200.8 MB. Free memory was 167.4 MB in the beginning and 145.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-10-13 22:53:45,156 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 136.8 MB. Free memory was 118.8 MB in the beginning and 118.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 276.42 ms. Allocated memory is still 136.8 MB. Free memory was 100.7 MB in the beginning and 91.3 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.98 ms. Allocated memory was 136.8 MB in the beginning and 200.8 MB in the end (delta: 64.0 MB). Free memory was 91.3 MB in the beginning and 179.5 MB in the end (delta: -88.2 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 263.92 ms. Allocated memory is still 200.8 MB. Free memory was 179.5 MB in the beginning and 167.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 475.97 ms. Allocated memory is still 200.8 MB. Free memory was 167.4 MB in the beginning and 145.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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, 14 locations, 1 error locations. Result: SAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 1 SDslu, 6 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 6 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 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...