/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench/prod4br.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:30:21,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:30:21,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:30:21,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:30:21,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:30:21,073 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:30:21,075 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:30:21,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:30:21,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:30:21,092 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:30:21,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:30:21,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:30:21,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:30:21,099 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:30:21,101 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:30:21,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:30:21,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:30:21,106 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:30:21,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:30:21,113 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:30:21,115 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:30:21,117 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:30:21,117 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:30:21,118 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:30:21,120 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 04:30:21,123 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-24 04:30:21,123 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-24 04:30:21,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-24 04:30:21,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-24 04:30:21,125 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-24 04:30:21,126 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-24 04:30:21,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-24 04:30:21,127 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-24 04:30:21,127 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:30:21,128 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:30:21,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:30:21,129 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-24 04:30:21,143 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:30:21,144 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:30:21,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:30:21,145 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:30:21,145 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:30:21,145 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:30:21,145 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:30:21,145 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:30:21,145 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:30:21,146 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:30:21,146 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:30:21,146 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:30:21,146 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:30:21,146 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:30:21,147 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:30:21,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:30:21,148 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:30:21,148 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:30:21,148 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:30:21,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:30:21,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:30:21,149 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:30:21,149 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:30:21,149 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:30:21,149 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:30:21,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:30:21,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:30:21,150 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:30:21,150 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:30:21,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:30:21,150 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:30:21,150 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:30:21,151 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:30:21,151 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:30:21,151 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:30:21,151 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:30:21,151 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:30:21,152 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:30:21,473 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:30:21,491 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:30:21,496 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:30:21,498 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:30:21,499 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:30:21,499 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/prod4br.c [2019-11-24 04:30:21,571 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7608bfa/6c05bd8ea6b34973b52a1e656cdd8a92/FLAG9f5a7629d [2019-11-24 04:30:22,022 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:30:22,023 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/prod4br.c [2019-11-24 04:30:22,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7608bfa/6c05bd8ea6b34973b52a1e656cdd8a92/FLAG9f5a7629d [2019-11-24 04:30:22,419 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a7608bfa/6c05bd8ea6b34973b52a1e656cdd8a92 [2019-11-24 04:30:22,427 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:30:22,429 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:30:22,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:30:22,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:30:22,433 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:30:22,434 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:30:22" (1/1) ... [2019-11-24 04:30:22,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@659eaaf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:22, skipping insertion in model container [2019-11-24 04:30:22,438 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:30:22" (1/1) ... [2019-11-24 04:30:22,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:30:22,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:30:22,691 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:30:22,697 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:30:22,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:30:22,746 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:30:22,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:22 WrapperNode [2019-11-24 04:30:22,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:30:22,748 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:30:22,748 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:30:22,748 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:30:22,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:22" (1/1) ... [2019-11-24 04:30:22,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:22" (1/1) ... [2019-11-24 04:30:22,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:30:22,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:30:22,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:30:22,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:30:22,909 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:22" (1/1) ... [2019-11-24 04:30:22,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:22" (1/1) ... [2019-11-24 04:30:22,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:22" (1/1) ... [2019-11-24 04:30:22,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:22" (1/1) ... [2019-11-24 04:30:22,925 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:22" (1/1) ... [2019-11-24 04:30:22,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:22" (1/1) ... [2019-11-24 04:30:22,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:22" (1/1) ... [2019-11-24 04:30:22,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:30:22,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:30:22,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:30:22,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:30:22,938 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:22" (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 [2019-11-24 04:30:22,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:30:22,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:30:23,430 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:30:23,431 INFO L284 CfgBuilder]: Removed 11 assume(true) statements. [2019-11-24 04:30:23,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:30:23 BoogieIcfgContainer [2019-11-24 04:30:23,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:30:23,435 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:30:23,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:30:23,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:30:23,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:30:22" (1/3) ... [2019-11-24 04:30:23,441 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ab16d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:30:23, skipping insertion in model container [2019-11-24 04:30:23,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:22" (2/3) ... [2019-11-24 04:30:23,442 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ab16d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:30:23, skipping insertion in model container [2019-11-24 04:30:23,442 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:30:23" (3/3) ... [2019-11-24 04:30:23,446 INFO L109 eAbstractionObserver]: Analyzing ICFG prod4br.c [2019-11-24 04:30:23,455 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:30:23,461 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-11-24 04:30:23,470 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-11-24 04:30:23,493 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:30:23,493 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:30:23,493 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:30:23,494 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:30:23,494 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:30:23,494 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:30:23,494 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:30:23,494 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:30:23,507 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-24 04:30:23,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-24 04:30:23,513 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:30:23,513 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-24 04:30:23,514 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:30:23,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:30:23,519 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-24 04:30:23,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:30:23,526 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492507414] [2019-11-24 04:30:23,527 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:30:23,607 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-24 04:30:23,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1285063706] [2019-11-24 04:30:23,608 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 [2019-11-24 04:30:23,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:30:23,650 WARN L253 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 17 conjunts are in the unsatisfiable core [2019-11-24 04:30:23,655 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 04:30:23,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:30:23,724 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 04:30:23,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:30:23,758 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492507414] [2019-11-24 04:30:23,758 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-24 04:30:23,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285063706] [2019-11-24 04:30:23,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:30:23,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-24 04:30:23,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173311592] [2019-11-24 04:30:23,766 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-24 04:30:23,766 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:30:23,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-24 04:30:23,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-24 04:30:23,779 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 6 states. [2019-11-24 04:30:23,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:30:23,994 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2019-11-24 04:30:23,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-11-24 04:30:23,997 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-11-24 04:30:23,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:30:24,007 INFO L225 Difference]: With dead ends: 42 [2019-11-24 04:30:24,008 INFO L226 Difference]: Without dead ends: 23 [2019-11-24 04:30:24,011 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-11-24 04:30:24,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-11-24 04:30:24,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 12. [2019-11-24 04:30:24,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-24 04:30:24,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-11-24 04:30:24,049 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 4 [2019-11-24 04:30:24,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:30:24,050 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-11-24 04:30:24,050 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-24 04:30:24,050 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-11-24 04:30:24,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-24 04:30:24,051 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:30:24,051 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:30:24,254 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:30:24,255 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:30:24,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:30:24,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1361008416, now seen corresponding path program 1 times [2019-11-24 04:30:24,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:30:24,257 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371185308] [2019-11-24 04:30:24,257 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:30:24,263 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-24 04:30:24,263 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1355761063] [2019-11-24 04:30:24,264 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 [2019-11-24 04:30:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:30:24,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-24 04:30:24,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 04:30:24,371 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:30:24,419 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:30:24,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:30:24,468 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 04:30:24,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:30:24,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:30:24,562 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:30:24,566 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:30:24,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:30:24,578 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371185308] [2019-11-24 04:30:24,578 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-24 04:30:24,579 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355761063] [2019-11-24 04:30:24,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:30:24,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-11-24 04:30:24,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731700862] [2019-11-24 04:30:24,583 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-24 04:30:24,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:30:24,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-24 04:30:24,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2019-11-24 04:30:24,584 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 11 states. [2019-11-24 04:30:24,773 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 29 [2019-11-24 04:30:25,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:30:25,149 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2019-11-24 04:30:25,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-11-24 04:30:25,150 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-11-24 04:30:25,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:30:25,151 INFO L225 Difference]: With dead ends: 22 [2019-11-24 04:30:25,151 INFO L226 Difference]: Without dead ends: 20 [2019-11-24 04:30:25,153 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2019-11-24 04:30:25,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-24 04:30:25,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 10. [2019-11-24 04:30:25,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-24 04:30:25,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-11-24 04:30:25,163 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 7 [2019-11-24 04:30:25,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:30:25,163 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-11-24 04:30:25,164 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-24 04:30:25,164 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-11-24 04:30:25,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-24 04:30:25,165 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:30:25,170 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-24 04:30:25,370 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:30:25,371 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:30:25,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:30:25,372 INFO L82 PathProgramCache]: Analyzing trace with hash 2036094115, now seen corresponding path program 1 times [2019-11-24 04:30:25,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:30:25,374 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066489263] [2019-11-24 04:30:25,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:30:25,380 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-24 04:30:25,380 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [294926598] [2019-11-24 04:30:25,381 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:30:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:30:25,406 INFO L255 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 9 conjunts are in the unsatisfiable core [2019-11-24 04:30:25,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 04:30:25,434 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:30:25,434 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 04:30:25,457 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-24 04:30:25,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-24 04:30:25,463 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066489263] [2019-11-24 04:30:25,463 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-24 04:30:25,463 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294926598] [2019-11-24 04:30:25,464 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:30:25,464 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2019-11-24 04:30:25,464 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990216860] [2019-11-24 04:30:25,464 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-24 04:30:25,465 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:30:25,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-24 04:30:25,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-24 04:30:25,466 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand 7 states. [2019-11-24 04:30:27,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:30:27,586 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-11-24 04:30:27,586 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-11-24 04:30:27,587 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 9 [2019-11-24 04:30:27,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:30:27,587 INFO L225 Difference]: With dead ends: 17 [2019-11-24 04:30:27,587 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 04:30:27,588 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-11-24 04:30:27,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 04:30:27,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 04:30:27,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 04:30:27,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 04:30:27,589 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2019-11-24 04:30:27,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:30:27,589 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 04:30:27,589 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-24 04:30:27,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 04:30:27,590 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 04:30:27,790 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:30:27,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 04:30:28,145 INFO L444 ceAbstractionStarter]: For program point L27-2(lines 27 48) no Hoare annotation was computed. [2019-11-24 04:30:28,145 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-24 04:30:28,145 INFO L444 ceAbstractionStarter]: For program point L7(lines 7 10) no Hoare annotation was computed. [2019-11-24 04:30:28,146 INFO L440 ceAbstractionStarter]: At program point L40-2(lines 27 48) the Hoare annotation is: (or (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0))) (and (= ULTIMATE.start_main_~b~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~p~0 1) (= ULTIMATE.start_main_~q~0 0) (<= 1 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0))) [2019-11-24 04:30:28,146 INFO L440 ceAbstractionStarter]: At program point L7-2(lines 30 31) the Hoare annotation is: (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0))) [2019-11-24 04:30:28,146 INFO L444 ceAbstractionStarter]: For program point L7-3(lines 7 10) no Hoare annotation was computed. [2019-11-24 04:30:28,146 INFO L440 ceAbstractionStarter]: At program point L7-5(lines 6 12) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0))) (and (= 0 .cse0) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* .cse0 ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)))) [2019-11-24 04:30:28,146 INFO L444 ceAbstractionStarter]: For program point L7-6(lines 7 10) no Hoare annotation was computed. [2019-11-24 04:30:28,147 INFO L440 ceAbstractionStarter]: At program point L7-8(lines 6 12) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= (+ (* (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~b~0) ULTIMATE.start_main_~p~0) ULTIMATE.start_main_~q~0) (* ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0))) [2019-11-24 04:30:28,147 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-24 04:30:28,147 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-24 04:30:28,147 INFO L444 ceAbstractionStarter]: For program point L8(lines 8 9) no Hoare annotation was computed. [2019-11-24 04:30:28,147 INFO L444 ceAbstractionStarter]: For program point L8-1(lines 8 9) no Hoare annotation was computed. [2019-11-24 04:30:28,147 INFO L444 ceAbstractionStarter]: For program point L8-2(lines 8 9) no Hoare annotation was computed. [2019-11-24 04:30:28,148 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 04:30:28,148 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-24 04:30:28,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 04:30:28 BoogieIcfgContainer [2019-11-24 04:30:28,165 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 04:30:28,168 INFO L168 Benchmark]: Toolchain (without parser) took 5738.66 ms. Allocated memory was 138.4 MB in the beginning and 235.4 MB in the end (delta: 97.0 MB). Free memory was 103.3 MB in the beginning and 112.9 MB in the end (delta: -9.6 MB). Peak memory consumption was 87.4 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:28,169 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-11-24 04:30:28,170 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.47 ms. Allocated memory is still 138.4 MB. Free memory was 102.9 MB in the beginning and 93.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:28,171 INFO L168 Benchmark]: Boogie Procedure Inliner took 151.30 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 93.0 MB in the beginning and 180.9 MB in the end (delta: -87.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:28,172 INFO L168 Benchmark]: Boogie Preprocessor took 37.05 ms. Allocated memory is still 201.9 MB. Free memory was 180.9 MB in the beginning and 179.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:28,173 INFO L168 Benchmark]: RCFGBuilder took 496.17 ms. Allocated memory is still 201.9 MB. Free memory was 179.2 MB in the beginning and 159.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:28,174 INFO L168 Benchmark]: TraceAbstraction took 4730.17 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 158.7 MB in the beginning and 112.9 MB in the end (delta: 45.7 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:28,179 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.4 MB. Free memory was 121.6 MB in the beginning and 121.4 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 317.47 ms. Allocated memory is still 138.4 MB. Free memory was 102.9 MB in the beginning and 93.0 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 151.30 ms. Allocated memory was 138.4 MB in the beginning and 201.9 MB in the end (delta: 63.4 MB). Free memory was 93.0 MB in the beginning and 180.9 MB in the end (delta: -87.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 37.05 ms. Allocated memory is still 201.9 MB. Free memory was 180.9 MB in the beginning and 179.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 496.17 ms. Allocated memory is still 201.9 MB. Free memory was 179.2 MB in the beginning and 159.4 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4730.17 ms. Allocated memory was 201.9 MB in the beginning and 235.4 MB in the end (delta: 33.6 MB). Free memory was 158.7 MB in the beginning and 112.9 MB in the end (delta: 45.7 MB). Peak memory consumption was 79.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: !(0 == cond) && a * b * p + q == x * y - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 == cond && a * b * p + q == x * y - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (1 == cond && a * b * p + q == x * y) || ((((b == y && p == 1) && q == 0) && 1 <= y) && a == x) - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: (0 == a * b && 1 == cond) && a * b * p + q == x * y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 3 error locations. Result: SAFE, OverallTime: 4.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 16 SDtfs, 65 SDslu, 26 SDs, 0 SdLazy, 87 SolverSat, 44 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 3 MinimizatonAttempts, 21 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 12 NumberOfFragments, 83 HoareAnnotationTreeSize, 4 FomulaSimplifications, 138 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 4 FomulaSimplificationsInter, 536 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 2 QuantifiedInterpolants, 1338 SizeOfPredicates, 28 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...