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/nla-digbench/geo2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-f4eb214f-m [2019-10-13 23:00:40,113 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-13 23:00:40,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-13 23:00:40,135 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-13 23:00:40,135 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-13 23:00:40,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-13 23:00:40,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-13 23:00:40,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-13 23:00:40,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-13 23:00:40,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-13 23:00:40,151 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-13 23:00:40,152 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-13 23:00:40,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-13 23:00:40,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-13 23:00:40,154 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-13 23:00:40,156 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-13 23:00:40,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-13 23:00:40,157 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-13 23:00:40,159 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-13 23:00:40,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-13 23:00:40,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-13 23:00:40,165 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-13 23:00:40,166 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-13 23:00:40,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-13 23:00:40,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-13 23:00:40,187 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-13 23:00:40,188 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-13 23:00:40,189 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-13 23:00:40,191 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 [2019-10-13 23:00:40,208 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-13 23:00:40,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-13 23:00:40,210 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-13 23:00:40,210 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-13 23:00:40,210 INFO L138 SettingsManager]: * Use SBE=true [2019-10-13 23:00:40,211 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-13 23:00:40,211 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-13 23:00:40,211 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-13 23:00:40,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-13 23:00:40,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-13 23:00:40,214 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-13 23:00:40,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-13 23:00:40,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-13 23:00:40,215 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-13 23:00:40,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-13 23:00:40,215 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-13 23:00:40,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-13 23:00:40,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-13 23:00:40,216 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-13 23:00:40,216 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-13 23:00:40,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-13 23:00:40,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-13 23:00:40,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-13 23:00:40,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-13 23:00:40,217 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-13 23:00:40,217 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-13 23:00:40,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-13 23:00:40,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-13 23:00:40,218 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 23:00:40,567 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-13 23:00:40,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-13 23:00:40,589 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-13 23:00:40,590 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-13 23:00:40,591 INFO L275 PluginConnector]: CDTParser initialized [2019-10-13 23:00:40,591 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo2.c [2019-10-13 23:00:40,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c07426bd9/8efa3920a3b04e049f4321075c5a8636/FLAG9970b4be9 [2019-10-13 23:00:41,141 INFO L306 CDTParser]: Found 1 translation units. [2019-10-13 23:00:41,142 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo2.c [2019-10-13 23:00:41,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c07426bd9/8efa3920a3b04e049f4321075c5a8636/FLAG9970b4be9 [2019-10-13 23:00:41,520 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c07426bd9/8efa3920a3b04e049f4321075c5a8636 [2019-10-13 23:00:41,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-13 23:00:41,533 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-13 23:00:41,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-13 23:00:41,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-13 23:00:41,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-13 23:00:41,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:00:41" (1/1) ... [2019-10-13 23:00:41,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3faf21cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:41, skipping insertion in model container [2019-10-13 23:00:41,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 11:00:41" (1/1) ... [2019-10-13 23:00:41,550 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-13 23:00:41,570 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-13 23:00:41,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:00:41,767 INFO L188 MainTranslator]: Completed pre-run [2019-10-13 23:00:41,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-13 23:00:41,795 INFO L192 MainTranslator]: Completed translation [2019-10-13 23:00:41,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:41 WrapperNode [2019-10-13 23:00:41,796 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-13 23:00:41,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-13 23:00:41,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-13 23:00:41,797 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-13 23:00:41,885 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:41" (1/1) ... [2019-10-13 23:00:41,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:41" (1/1) ... [2019-10-13 23:00:41,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:41" (1/1) ... [2019-10-13 23:00:41,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:41" (1/1) ... [2019-10-13 23:00:41,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:41" (1/1) ... [2019-10-13 23:00:41,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:41" (1/1) ... [2019-10-13 23:00:41,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:41" (1/1) ... [2019-10-13 23:00:41,901 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-13 23:00:41,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-13 23:00:41,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-13 23:00:41,902 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-13 23:00:41,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:41" (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 23:00:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-13 23:00:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-13 23:00:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-13 23:00:41,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-13 23:00:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-13 23:00:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-13 23:00:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-13 23:00:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-13 23:00:41,958 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-13 23:00:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-13 23:00:41,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-13 23:00:42,150 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-13 23:00:42,151 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-13 23:00:42,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:00:42 BoogieIcfgContainer [2019-10-13 23:00:42,154 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-13 23:00:42,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-13 23:00:42,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-13 23:00:42,162 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-13 23:00:42,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 11:00:41" (1/3) ... [2019-10-13 23:00:42,164 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237ec361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:00:42, skipping insertion in model container [2019-10-13 23:00:42,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 11:00:41" (2/3) ... [2019-10-13 23:00:42,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237ec361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 11:00:42, skipping insertion in model container [2019-10-13 23:00:42,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 11:00:42" (3/3) ... [2019-10-13 23:00:42,167 INFO L109 eAbstractionObserver]: Analyzing ICFG geo2.c [2019-10-13 23:00:42,177 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-13 23:00:42,197 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-13 23:00:42,226 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-13 23:00:42,271 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-13 23:00:42,271 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-13 23:00:42,271 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-13 23:00:42,271 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-13 23:00:42,271 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-13 23:00:42,272 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-13 23:00:42,272 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-13 23:00:42,272 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-13 23:00:42,291 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-13 23:00:42,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-13 23:00:42,296 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:00:42,297 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:00:42,299 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:00:42,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:00:42,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1704941753, now seen corresponding path program 1 times [2019-10-13 23:00:42,311 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:00:42,312 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156243646] [2019-10-13 23:00:42,312 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:00:42,312 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:00:42,312 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:00:42,382 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 23:00:42,383 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1643441798] [2019-10-13 23:00:42,383 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:00:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:00:42,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 10 conjunts are in the unsatisfiable core [2019-10-13 23:00:42,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:00:42,503 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 23:00:42,504 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:00:42,562 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 23:00:42,563 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156243646] [2019-10-13 23:00:42,563 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 23:00:42,563 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643441798] [2019-10-13 23:00:42,564 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-13 23:00:42,564 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2019-10-13 23:00:42,565 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254069768] [2019-10-13 23:00:42,569 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-13 23:00:42,570 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:00:42,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-13 23:00:42,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-13 23:00:42,588 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 7 states. [2019-10-13 23:00:42,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:00:42,690 INFO L93 Difference]: Finished difference Result 43 states and 57 transitions. [2019-10-13 23:00:42,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-13 23:00:42,693 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2019-10-13 23:00:42,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:00:42,704 INFO L225 Difference]: With dead ends: 43 [2019-10-13 23:00:42,704 INFO L226 Difference]: Without dead ends: 22 [2019-10-13 23:00:42,709 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-10-13 23:00:42,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-10-13 23:00:42,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-10-13 23:00:42,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-13 23:00:42,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2019-10-13 23:00:42,770 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 10 [2019-10-13 23:00:42,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:00:42,770 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2019-10-13 23:00:42,771 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-13 23:00:42,771 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2019-10-13 23:00:42,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-13 23:00:42,772 INFO L372 BasicCegarLoop]: Found error trace [2019-10-13 23:00:42,772 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-13 23:00:42,976 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:00:42,977 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-13 23:00:42,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-13 23:00:42,978 INFO L82 PathProgramCache]: Analyzing trace with hash 241116926, now seen corresponding path program 1 times [2019-10-13 23:00:42,978 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-13 23:00:42,978 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548469189] [2019-10-13 23:00:42,979 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:00:42,979 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-13 23:00:42,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-13 23:00:42,997 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-13 23:00:42,999 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [940339152] [2019-10-13 23:00:42,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:00:43,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-13 23:00:43,036 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 19 conjunts are in the unsatisfiable core [2019-10-13 23:00:43,039 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-13 23:00:43,120 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:00:43,163 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:00:43,163 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-13 23:00:43,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:00:43,263 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-13 23:00:43,299 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-13 23:00:43,299 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548469189] [2019-10-13 23:00:43,299 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-13 23:00:43,300 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940339152] [2019-10-13 23:00:43,300 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [443790316] [2019-10-13 23:00:43,327 INFO L162 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-10-13 23:00:43,327 INFO L169 IcfgInterpreter]: Building call graph [2019-10-13 23:00:43,335 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-13 23:00:43,343 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-13 23:00:43,344 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-13 23:00:43,405 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 1 for LOIs [2019-10-13 23:00:43,916 INFO L199 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 6 for LOIs [2019-10-13 23:00:43,957 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 1 for LOIs [2019-10-13 23:00:43,962 INFO L183 IcfgInterpreter]: Interpretation finished [2019-10-13 23:00:43,962 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-10-13 23:00:43,963 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initFINAL satisfy 156#true [2019-10-13 23:00:43,963 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertEXIT satisfy 142#(and (or (and (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 __VERIFIER_assert_~cond) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1)) [2019-10-13 23:00:43,964 INFO L193 IcfgInterpreter]: Reachable states at location L11 satisfy 147#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-13 23:00:43,965 INFO L193 IcfgInterpreter]: Reachable states at location L28-2 satisfy 105#(and (<= main_~k~0 2147483647) (<= 0 (+ main_~z~0 2147483648)) (<= main_~z~0 2147483647) (<= 0 (+ main_~k~0 2147483648)) (<= 1 main_~c~0)) [2019-10-13 23:00:43,965 INFO L193 IcfgInterpreter]: Reachable states at location L-1 satisfy 23#true [2019-10-13 23:00:43,966 INFO L193 IcfgInterpreter]: Reachable states at location mainENTRY satisfy 33#true [2019-10-13 23:00:43,969 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.initEXIT satisfy 161#true [2019-10-13 23:00:43,969 INFO L193 IcfgInterpreter]: Reachable states at location ULTIMATE.startENTRY satisfy 6#true [2019-10-13 23:00:43,969 INFO L193 IcfgInterpreter]: Reachable states at location L29-1 satisfy 123#(and (<= main_~k~0 2147483647) (<= 0 (+ main_~z~0 2147483648)) (<= main_~z~0 2147483647) (<= 0 (+ main_~k~0 2147483648)) (= 0 (+ (* main_~x~0 (- 1)) (* (* main_~z~0 main_~y~0) (- 1)) (* main_~x~0 main_~z~0) 1)) (<= 1 main_~c~0)) [2019-10-13 23:00:43,970 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 152#(and (or (and (= |__VERIFIER_assert_#in~cond| 0) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) [2019-10-13 23:00:43,970 INFO L193 IcfgInterpreter]: Reachable states at location L29 satisfy 110#(and (<= main_~k~0 2147483647) (<= 0 (+ main_~z~0 2147483648)) (<= main_~z~0 2147483647) (<= 0 (+ main_~k~0 2147483648)) (<= 1 main_~c~0)) [2019-10-13 23:00:43,971 INFO L193 IcfgInterpreter]: Reachable states at location __VERIFIER_assertENTRY satisfy 127#(and (or (and (<= 1 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 1)) (and (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0))) (or (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| 0))) [2019-10-13 23:00:43,972 INFO L193 IcfgInterpreter]: Reachable states at location L10 satisfy 132#(and (or (and (<= __VERIFIER_assert_~cond 0) (<= 0 |__VERIFIER_assert_#in~cond|) (<= |__VERIFIER_assert_#in~cond| 0) (<= 0 __VERIFIER_assert_~cond)) (and (<= 1 __VERIFIER_assert_~cond) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1))) (or (and (= |__VERIFIER_assert_#in~cond| 0) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)))) [2019-10-13 23:00:43,972 INFO L193 IcfgInterpreter]: Reachable states at location L10-2 satisfy 137#(and (or (and (= |__VERIFIER_assert_#in~cond| 1) (not (= 0 __VERIFIER_assert_~cond)) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)) (and (= |__VERIFIER_assert_#in~cond| 0) (not (= 0 __VERIFIER_assert_~cond)) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond))) (<= 1 __VERIFIER_assert_~cond) (<= 1 |__VERIFIER_assert_#in~cond|) (<= __VERIFIER_assert_~cond 1) (<= |__VERIFIER_assert_#in~cond| 1)) [2019-10-13 23:00:44,203 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-10-13 23:00:44,203 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 7] total 19 [2019-10-13 23:00:44,204 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914511700] [2019-10-13 23:00:44,206 INFO L442 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-10-13 23:00:44,206 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-13 23:00:44,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-10-13 23:00:44,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=277, Unknown=0, NotChecked=0, Total=342 [2019-10-13 23:00:44,208 INFO L87 Difference]: Start difference. First operand 22 states and 23 transitions. Second operand 19 states. [2019-10-13 23:00:44,580 WARN L191 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2019-10-13 23:00:44,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-13 23:00:44,901 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2019-10-13 23:00:44,902 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-13 23:00:44,902 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 17 [2019-10-13 23:00:44,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-13 23:00:44,903 INFO L225 Difference]: With dead ends: 26 [2019-10-13 23:00:44,903 INFO L226 Difference]: Without dead ends: 0 [2019-10-13 23:00:44,904 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2019-10-13 23:00:44,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-13 23:00:44,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-13 23:00:44,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-13 23:00:44,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-13 23:00:44,905 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-13 23:00:44,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-13 23:00:44,906 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-13 23:00:44,906 INFO L463 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-10-13 23:00:44,906 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-13 23:00:44,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-13 23:00:45,110 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-13 23:00:45,116 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-13 23:00:45,319 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-13 23:00:45,319 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-13 23:00:45,320 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-13 23:00:45,320 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-13 23:00:45,320 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-13 23:00:45,320 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-13 23:00:45,321 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 18 40) the Hoare annotation is: true [2019-10-13 23:00:45,321 INFO L439 ceAbstractionStarter]: At program point L29(line 29) the Hoare annotation is: (and (<= main_~k~0 2147483647) (<= main_~z~0 2147483647) (<= 0 (+ main_~z~0 2147483648)) (<= 0 (+ main_~k~0 2147483648)) (= (+ main_~x~0 (* main_~z~0 main_~y~0)) (+ (* main_~x~0 main_~z~0) 1)) (<= 1 main_~c~0)) [2019-10-13 23:00:45,321 INFO L443 ceAbstractionStarter]: For program point L29-1(lines 28 37) no Hoare annotation was computed. [2019-10-13 23:00:45,321 INFO L439 ceAbstractionStarter]: At program point L28-2(lines 28 37) the Hoare annotation is: (and (<= main_~k~0 2147483647) (<= main_~z~0 2147483647) (<= 0 (+ main_~z~0 2147483648)) (<= 0 (+ main_~k~0 2147483648)) (= (+ main_~x~0 (* main_~z~0 main_~y~0)) (+ (* main_~x~0 main_~z~0) 1)) (<= 1 main_~c~0)) [2019-10-13 23:00:45,322 INFO L439 ceAbstractionStarter]: At program point L28-3(lines 28 37) the Hoare annotation is: (or (and (= main_~x~0 1) (= main_~y~0 1)) (and (<= main_~k~0 2147483647) (<= main_~z~0 2147483647) (<= 0 (+ main_~z~0 2147483648)) (<= 0 (+ main_~k~0 2147483648)) (= (+ main_~x~0 (* main_~z~0 main_~y~0)) (+ (* main_~x~0 main_~z~0) 1)) (<= 1 main_~c~0))) [2019-10-13 23:00:45,322 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 18 40) no Hoare annotation was computed. [2019-10-13 23:00:45,322 INFO L443 ceAbstractionStarter]: For program point L38(line 38) no Hoare annotation was computed. [2019-10-13 23:00:45,322 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2019-10-13 23:00:45,322 INFO L443 ceAbstractionStarter]: For program point L11(lines 11 12) no Hoare annotation was computed. [2019-10-13 23:00:45,323 INFO L443 ceAbstractionStarter]: For program point L10(lines 10 13) no Hoare annotation was computed. [2019-10-13 23:00:45,323 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2019-10-13 23:00:45,323 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-10-13 23:00:45,323 INFO L443 ceAbstractionStarter]: For program point L10-2(lines 9 15) no Hoare annotation was computed. [2019-10-13 23:00:45,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 11:00:45 BoogieIcfgContainer [2019-10-13 23:00:45,348 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-13 23:00:45,352 INFO L168 Benchmark]: Toolchain (without parser) took 3817.81 ms. Allocated memory was 139.5 MB in the beginning and 234.4 MB in the end (delta: 94.9 MB). Free memory was 104.7 MB in the beginning and 97.8 MB in the end (delta: 6.9 MB). Peak memory consumption was 101.8 MB. Max. memory is 7.1 GB. [2019-10-13 23:00:45,359 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-13 23:00:45,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 262.40 ms. Allocated memory is still 139.5 MB. Free memory was 104.5 MB in the beginning and 94.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-10-13 23:00:45,362 INFO L168 Benchmark]: Boogie Preprocessor took 104.64 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 94.8 MB in the beginning and 180.3 MB in the end (delta: -85.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. [2019-10-13 23:00:45,364 INFO L168 Benchmark]: RCFGBuilder took 252.34 ms. Allocated memory is still 201.9 MB. Free memory was 180.3 MB in the beginning and 168.7 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. [2019-10-13 23:00:45,365 INFO L168 Benchmark]: TraceAbstraction took 3192.68 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 168.7 MB in the beginning and 97.8 MB in the end (delta: 70.8 MB). Peak memory consumption was 103.3 MB. Max. memory is 7.1 GB. [2019-10-13 23:00:45,380 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 139.5 MB. Free memory was 122.7 MB in the beginning and 122.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 262.40 ms. Allocated memory is still 139.5 MB. Free memory was 104.5 MB in the beginning and 94.8 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.64 ms. Allocated memory was 139.5 MB in the beginning and 201.9 MB in the end (delta: 62.4 MB). Free memory was 94.8 MB in the beginning and 180.3 MB in the end (delta: -85.5 MB). Peak memory consumption was 13.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 252.34 ms. Allocated memory is still 201.9 MB. Free memory was 180.3 MB in the beginning and 168.7 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3192.68 ms. Allocated memory was 201.9 MB in the beginning and 234.4 MB in the end (delta: 32.5 MB). Free memory was 168.7 MB in the beginning and 97.8 MB in the end (delta: 70.8 MB). Peak memory consumption was 103.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 28]: Loop Invariant Derived loop invariant: ((((k <= 2147483647 && z <= 2147483647) && 0 <= z + 2147483648) && 0 <= k + 2147483648) && x + z * y == x * z + 1) && 1 <= c - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Result: SAFE, OverallTime: 3.0s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 28 SDtfs, 32 SDslu, 138 SDs, 0 SdLazy, 95 SolverSat, 26 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=1, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 15 PreInvPairs, 24 NumberOfFragments, 106 HoareAnnotationTreeSize, 15 FomulaSimplifications, 74 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 113 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 50 ConstructedInterpolants, 2 QuantifiedInterpolants, 2884 SizeOfPredicates, 7 NumberOfNonLiveVariables, 85 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 4/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: OVERALL_TIME[ms]: 645, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 38, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 18, TOOLS_POST_TIME[ms]: 22, TOOLS_POST_CALL_APPLICATIONS: 13, TOOLS_POST_CALL_TIME[ms]: 93, TOOLS_POST_RETURN_APPLICATIONS: 10, TOOLS_POST_RETURN_TIME[ms]: 20, TOOLS_QUANTIFIERELIM_APPLICATIONS: 41, TOOLS_QUANTIFIERELIM_TIME[ms]: 117, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 17, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 41, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 26, DOMAIN_JOIN_TIME[ms]: 323, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME[ms]: 77, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME[ms]: 17, DOMAIN_ISBOTTOM_APPLICATIONS: 6, DOMAIN_ISBOTTOM_TIME[ms]: 13, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 401, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 400, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 10, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 26, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 26, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 4, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 14, DAG_COMPRESSION_PROCESSED_NODES: 77, DAG_COMPRESSION_RETAINED_NODES: 49, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...