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/loops/trex02-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-36ac518-m [2019-10-07 13:47:18,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-07 13:47:18,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-07 13:47:18,139 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-07 13:47:18,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-07 13:47:18,141 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-07 13:47:18,143 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-07 13:47:18,152 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-07 13:47:18,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-07 13:47:18,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-07 13:47:18,161 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-07 13:47:18,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-07 13:47:18,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-07 13:47:18,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-07 13:47:18,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-07 13:47:18,167 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-07 13:47:18,168 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-07 13:47:18,169 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-07 13:47:18,170 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-07 13:47:18,174 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-07 13:47:18,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-07 13:47:18,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-07 13:47:18,180 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-07 13:47:18,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-07 13:47:18,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-07 13:47:18,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-07 13:47:18,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-07 13:47:18,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-07 13:47:18,184 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-07 13:47:18,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-07 13:47:18,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-07 13:47:18,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-07 13:47:18,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-07 13:47:18,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-07 13:47:18,187 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-07 13:47:18,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-07 13:47:18,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-07 13:47:18,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-07 13:47:18,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-07 13:47:18,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-07 13:47:18,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-07 13:47:18,191 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 13:47:18,223 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-07 13:47:18,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-07 13:47:18,228 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-07 13:47:18,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-07 13:47:18,228 INFO L138 SettingsManager]: * Use SBE=true [2019-10-07 13:47:18,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-07 13:47:18,228 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-07 13:47:18,229 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-07 13:47:18,229 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-07 13:47:18,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-07 13:47:18,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-07 13:47:18,230 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-07 13:47:18,230 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-07 13:47:18,230 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-07 13:47:18,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-07 13:47:18,231 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-07 13:47:18,231 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-07 13:47:18,231 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-07 13:47:18,231 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-07 13:47:18,232 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-07 13:47:18,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-07 13:47:18,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-07 13:47:18,232 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-07 13:47:18,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-07 13:47:18,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-07 13:47:18,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-07 13:47:18,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-07 13:47:18,233 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-07 13:47:18,233 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 13:47:18,522 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-07 13:47:18,534 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-07 13:47:18,537 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-07 13:47:18,538 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-07 13:47:18,539 INFO L275 PluginConnector]: CDTParser initialized [2019-10-07 13:47:18,539 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex02-1.c [2019-10-07 13:47:18,598 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac07ba7ef/9652ce88bb7940718295ed261f29744f/FLAG2250dea56 [2019-10-07 13:47:19,026 INFO L306 CDTParser]: Found 1 translation units. [2019-10-07 13:47:19,026 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex02-1.c [2019-10-07 13:47:19,033 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac07ba7ef/9652ce88bb7940718295ed261f29744f/FLAG2250dea56 [2019-10-07 13:47:19,428 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac07ba7ef/9652ce88bb7940718295ed261f29744f [2019-10-07 13:47:19,438 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-07 13:47:19,440 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-07 13:47:19,441 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-07 13:47:19,441 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-07 13:47:19,444 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-07 13:47:19,445 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:47:19" (1/1) ... [2019-10-07 13:47:19,448 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65f25ee7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:19, skipping insertion in model container [2019-10-07 13:47:19,448 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.10 01:47:19" (1/1) ... [2019-10-07 13:47:19,455 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-07 13:47:19,473 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-07 13:47:19,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:47:19,669 INFO L188 MainTranslator]: Completed pre-run [2019-10-07 13:47:19,688 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-07 13:47:19,700 INFO L192 MainTranslator]: Completed translation [2019-10-07 13:47:19,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:19 WrapperNode [2019-10-07 13:47:19,700 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-07 13:47:19,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-07 13:47:19,701 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-07 13:47:19,701 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-07 13:47:19,791 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:19" (1/1) ... [2019-10-07 13:47:19,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:19" (1/1) ... [2019-10-07 13:47:19,796 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:19" (1/1) ... [2019-10-07 13:47:19,798 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:19" (1/1) ... [2019-10-07 13:47:19,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:19" (1/1) ... [2019-10-07 13:47:19,805 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:19" (1/1) ... [2019-10-07 13:47:19,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:19" (1/1) ... [2019-10-07 13:47:19,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-07 13:47:19,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-07 13:47:19,808 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-07 13:47:19,808 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-07 13:47:19,809 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:19" (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 13:47:19,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-07 13:47:19,863 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-07 13:47:19,863 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-07 13:47:19,863 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2019-10-07 13:47:19,863 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-07 13:47:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-07 13:47:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-07 13:47:19,863 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-07 13:47:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-07 13:47:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2019-10-07 13:47:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-07 13:47:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-07 13:47:19,864 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-07 13:47:20,046 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-07 13:47:20,046 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-07 13:47:20,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:47:20 BoogieIcfgContainer [2019-10-07 13:47:20,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-07 13:47:20,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-07 13:47:20,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-07 13:47:20,052 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-07 13:47:20,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.10 01:47:19" (1/3) ... [2019-10-07 13:47:20,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321e1e95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:47:20, skipping insertion in model container [2019-10-07 13:47:20,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.10 01:47:19" (2/3) ... [2019-10-07 13:47:20,053 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321e1e95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.10 01:47:20, skipping insertion in model container [2019-10-07 13:47:20,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.10 01:47:20" (3/3) ... [2019-10-07 13:47:20,055 INFO L109 eAbstractionObserver]: Analyzing ICFG trex02-1.c [2019-10-07 13:47:20,063 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-07 13:47:20,070 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-07 13:47:20,080 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-07 13:47:20,100 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-07 13:47:20,100 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-07 13:47:20,101 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-07 13:47:20,101 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-07 13:47:20,101 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-07 13:47:20,101 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-07 13:47:20,101 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-07 13:47:20,101 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-07 13:47:20,116 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-10-07 13:47:20,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-07 13:47:20,121 INFO L377 BasicCegarLoop]: Found error trace [2019-10-07 13:47:20,121 INFO L385 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-07 13:47:20,123 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-07 13:47:20,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-07 13:47:20,129 INFO L82 PathProgramCache]: Analyzing trace with hash 987415401, now seen corresponding path program 1 times [2019-10-07 13:47:20,137 INFO L150 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-07 13:47:20,138 INFO L231 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:47:20,138 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:47:20,138 INFO L117 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-07 13:47:20,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-07 13:47:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-07 13:47:20,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-07 13:47:20,298 INFO L286 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019-10-07 13:47:20,299 INFO L211 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-07 13:47:20,299 INFO L224 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-07 13:47:20,303 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-07 13:47:20,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-07 13:47:20,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-07 13:47:20,328 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2019-10-07 13:47:20,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-07 13:47:20,433 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2019-10-07 13:47:20,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-07 13:47:20,438 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-10-07 13:47:20,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-07 13:47:20,444 INFO L225 Difference]: With dead ends: 28 [2019-10-07 13:47:20,444 INFO L226 Difference]: Without dead ends: 0 [2019-10-07 13:47:20,448 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-10-07 13:47:20,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-07 13:47:20,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-07 13:47:20,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-07 13:47:20,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-07 13:47:20,470 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-10-07 13:47:20,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-07 13:47:20,470 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-07 13:47:20,470 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-07 13:47:20,471 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-07 13:47:20,471 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-07 13:47:20,475 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-07 13:47:20,525 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-07 13:47:20,525 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:47:20,526 INFO L443 ceAbstractionStarter]: For program point fooEXIT(lines 15 17) no Hoare annotation was computed. [2019-10-07 13:47:20,526 INFO L446 ceAbstractionStarter]: At program point fooENTRY(lines 15 17) the Hoare annotation is: true [2019-10-07 13:47:20,526 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-07 13:47:20,526 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (<= ~x~0 0) [2019-10-07 13:47:20,526 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-07 13:47:20,527 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-07 13:47:20,527 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 19 27) the Hoare annotation is: (or (not (<= |old(~x~0)| 0)) (<= ~x~0 0)) [2019-10-07 13:47:20,527 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 19 27) no Hoare annotation was computed. [2019-10-07 13:47:20,527 INFO L446 ceAbstractionStarter]: At program point L24(line 24) the Hoare annotation is: true [2019-10-07 13:47:20,527 INFO L443 ceAbstractionStarter]: For program point L23(lines 23 24) no Hoare annotation was computed. [2019-10-07 13:47:20,528 INFO L446 ceAbstractionStarter]: At program point L24-1(lines 21 25) the Hoare annotation is: true [2019-10-07 13:47:20,528 INFO L446 ceAbstractionStarter]: At program point L23-1(line 23) the Hoare annotation is: true [2019-10-07 13:47:20,528 INFO L439 ceAbstractionStarter]: At program point L21-2(lines 21 25) the Hoare annotation is: (or (not (<= |old(~x~0)| 0)) (<= ~x~0 0)) [2019-10-07 13:47:20,528 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 19 27) no Hoare annotation was computed. [2019-10-07 13:47:20,528 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-10-07 13:47:20,529 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:47:20,529 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-10-07 13:47:20,529 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-10-07 13:47:20,529 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-10-07 13:47:20,530 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-10-07 13:47:20,536 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.10 01:47:20 BoogieIcfgContainer [2019-10-07 13:47:20,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-07 13:47:20,539 INFO L168 Benchmark]: Toolchain (without parser) took 1098.04 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 103.4 MB in the beginning and 139.8 MB in the end (delta: -36.5 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-10-07 13:47:20,540 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 122.2 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-07 13:47:20,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.01 ms. Allocated memory is still 145.8 MB. Free memory was 103.2 MB in the beginning and 93.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-10-07 13:47:20,542 INFO L168 Benchmark]: Boogie Preprocessor took 106.34 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 93.9 MB in the beginning and 182.1 MB in the end (delta: -88.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-10-07 13:47:20,543 INFO L168 Benchmark]: RCFGBuilder took 240.20 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 169.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2019-10-07 13:47:20,544 INFO L168 Benchmark]: TraceAbstraction took 487.39 ms. Allocated memory is still 203.4 MB. Free memory was 169.0 MB in the beginning and 139.8 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. [2019-10-07 13:47:20,549 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.8 MB. Free memory was 122.2 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 260.01 ms. Allocated memory is still 145.8 MB. Free memory was 103.2 MB in the beginning and 93.9 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.34 ms. Allocated memory was 145.8 MB in the beginning and 203.4 MB in the end (delta: 57.7 MB). Free memory was 93.9 MB in the beginning and 182.1 MB in the end (delta: -88.2 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 240.20 ms. Allocated memory is still 203.4 MB. Free memory was 182.1 MB in the beginning and 169.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 487.39 ms. Allocated memory is still 203.4 MB. Free memory was 169.0 MB in the beginning and 139.8 MB in the end (delta: 29.2 MB). Peak memory consumption was 29.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 22 locations, 1 error locations. Result: SAFE, OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 19 SDtfs, 14 SDslu, 42 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 10 LocationsWithAnnotation, 11 PreInvPairs, 11 NumberOfFragments, 26 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 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...