/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/geo3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-24 04:30:09,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-24 04:30:09,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-24 04:30:09,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-24 04:30:09,195 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-24 04:30:09,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-24 04:30:09,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-24 04:30:09,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-24 04:30:09,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-24 04:30:09,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-24 04:30:09,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-24 04:30:09,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-24 04:30:09,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-24 04:30:09,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-24 04:30:09,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-24 04:30:09,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-24 04:30:09,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-24 04:30:09,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-24 04:30:09,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-24 04:30:09,231 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-24 04:30:09,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-24 04:30:09,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-24 04:30:09,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-24 04:30:09,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-24 04:30:09,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-24 04:30:09,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-24 04:30:09,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-24 04:30:09,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-24 04:30:09,253 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 04:30:09,291 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-24 04:30:09,292 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-24 04:30:09,293 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-24 04:30:09,293 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-24 04:30:09,293 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-24 04:30:09,293 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-24 04:30:09,293 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-24 04:30:09,294 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-24 04:30:09,294 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-24 04:30:09,294 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-24 04:30:09,294 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-24 04:30:09,294 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-24 04:30:09,295 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-24 04:30:09,295 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-24 04:30:09,295 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-24 04:30:09,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-24 04:30:09,296 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-24 04:30:09,296 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-24 04:30:09,296 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-24 04:30:09,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-24 04:30:09,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-24 04:30:09,297 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-24 04:30:09,297 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-24 04:30:09,297 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-24 04:30:09,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-24 04:30:09,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-24 04:30:09,298 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-24 04:30:09,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-24 04:30:09,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-24 04:30:09,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-24 04:30:09,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-24 04:30:09,299 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-24 04:30:09,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-24 04:30:09,299 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-24 04:30:09,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-24 04:30:09,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-24 04:30:09,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-24 04:30:09,300 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-24 04:30:09,590 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-24 04:30:09,606 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-24 04:30:09,610 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-24 04:30:09,611 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-24 04:30:09,611 INFO L275 PluginConnector]: CDTParser initialized [2019-11-24 04:30:09,612 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/geo3.c [2019-11-24 04:30:09,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda282fdf/97e9ff5143244032ac03db747d1ba6e3/FLAG2e1cf8762 [2019-11-24 04:30:10,135 INFO L306 CDTParser]: Found 1 translation units. [2019-11-24 04:30:10,136 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/geo3.c [2019-11-24 04:30:10,142 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda282fdf/97e9ff5143244032ac03db747d1ba6e3/FLAG2e1cf8762 [2019-11-24 04:30:10,518 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dda282fdf/97e9ff5143244032ac03db747d1ba6e3 [2019-11-24 04:30:10,526 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-24 04:30:10,527 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-24 04:30:10,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-24 04:30:10,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-24 04:30:10,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-24 04:30:10,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:30:10" (1/1) ... [2019-11-24 04:30:10,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32e83e0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:10, skipping insertion in model container [2019-11-24 04:30:10,535 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 04:30:10" (1/1) ... [2019-11-24 04:30:10,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-24 04:30:10,560 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-24 04:30:10,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:30:10,740 INFO L203 MainTranslator]: Completed pre-run [2019-11-24 04:30:10,765 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-24 04:30:10,778 INFO L208 MainTranslator]: Completed translation [2019-11-24 04:30:10,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:10 WrapperNode [2019-11-24 04:30:10,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-24 04:30:10,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-24 04:30:10,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-24 04:30:10,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-24 04:30:10,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:10" (1/1) ... [2019-11-24 04:30:10,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:10" (1/1) ... [2019-11-24 04:30:10,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-24 04:30:10,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-24 04:30:10,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-24 04:30:10,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-24 04:30:10,895 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:10" (1/1) ... [2019-11-24 04:30:10,895 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:10" (1/1) ... [2019-11-24 04:30:10,896 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:10" (1/1) ... [2019-11-24 04:30:10,896 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:10" (1/1) ... [2019-11-24 04:30:10,898 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:10" (1/1) ... [2019-11-24 04:30:10,902 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:10" (1/1) ... [2019-11-24 04:30:10,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:10" (1/1) ... [2019-11-24 04:30:10,905 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-24 04:30:10,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-24 04:30:10,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-24 04:30:10,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-24 04:30:10,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:10" (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 04:30:10,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-24 04:30:10,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-24 04:30:11,158 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-24 04:30:11,158 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-24 04:30:11,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:30:11 BoogieIcfgContainer [2019-11-24 04:30:11,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-24 04:30:11,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-24 04:30:11,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-24 04:30:11,164 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-24 04:30:11,164 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 04:30:10" (1/3) ... [2019-11-24 04:30:11,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d14e0e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:30:11, skipping insertion in model container [2019-11-24 04:30:11,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 04:30:10" (2/3) ... [2019-11-24 04:30:11,165 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d14e0e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 04:30:11, skipping insertion in model container [2019-11-24 04:30:11,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 04:30:11" (3/3) ... [2019-11-24 04:30:11,167 INFO L109 eAbstractionObserver]: Analyzing ICFG geo3.c [2019-11-24 04:30:11,193 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-24 04:30:11,203 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-24 04:30:11,240 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-24 04:30:11,267 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-24 04:30:11,267 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-24 04:30:11,267 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-24 04:30:11,268 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-24 04:30:11,268 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-24 04:30:11,268 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-24 04:30:11,268 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-24 04:30:11,268 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-24 04:30:11,296 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-11-24 04:30:11,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-24 04:30:11,301 INFO L402 BasicCegarLoop]: Found error trace [2019-11-24 04:30:11,302 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-24 04:30:11,302 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-24 04:30:11,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-24 04:30:11,307 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-24 04:30:11,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-24 04:30:11,315 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581234552] [2019-11-24 04:30:11,316 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-24 04:30:11,383 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-24 04:30:11,384 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [43708685] [2019-11-24 04:30:11,384 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 04:30:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-24 04:30:11,423 WARN L253 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-24 04:30:11,427 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-24 04:30:11,508 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 04:30:11,508 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-24 04:30:11,541 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 04:30:11,542 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581234552] [2019-11-24 04:30:11,542 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-24 04:30:11,542 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [43708685] [2019-11-24 04:30:11,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-24 04:30:11,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-24 04:30:11,545 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750160000] [2019-11-24 04:30:11,550 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-24 04:30:11,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-24 04:30:11,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-24 04:30:11,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-24 04:30:11,565 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 6 states. [2019-11-24 04:30:11,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-24 04:30:11,695 INFO L93 Difference]: Finished difference Result 26 states and 35 transitions. [2019-11-24 04:30:11,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-24 04:30:11,697 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-11-24 04:30:11,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-24 04:30:11,706 INFO L225 Difference]: With dead ends: 26 [2019-11-24 04:30:11,706 INFO L226 Difference]: Without dead ends: 0 [2019-11-24 04:30:11,710 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-11-24 04:30:11,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-24 04:30:11,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-24 04:30:11,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-24 04:30:11,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-24 04:30:11,738 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2019-11-24 04:30:11,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-24 04:30:11,739 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-24 04:30:11,739 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-24 04:30:11,739 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-24 04:30:11,740 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-24 04:30:11,943 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-24 04:30:11,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-24 04:30:12,050 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-24 04:30:12,050 INFO L440 ceAbstractionStarter]: At program point L27-2(lines 27 36) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~y~0 1)) (and (= (+ (* (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0) (+ ULTIMATE.start_main_~a~0 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond))) [2019-11-24 04:30:12,051 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-11-24 04:30:12,051 INFO L444 ceAbstractionStarter]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2019-11-24 04:30:12,051 INFO L444 ceAbstractionStarter]: For program point L11(lines 11 12) no Hoare annotation was computed. [2019-11-24 04:30:12,051 INFO L444 ceAbstractionStarter]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2019-11-24 04:30:12,051 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-24 04:30:12,052 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2019-11-24 04:30:12,052 INFO L444 ceAbstractionStarter]: For program point L10(lines 10 13) no Hoare annotation was computed. [2019-11-24 04:30:12,052 INFO L440 ceAbstractionStarter]: At program point L10-2(lines 30 31) the Hoare annotation is: (and (= (+ ULTIMATE.start_main_~a~0 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0)) (+ (* (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) [2019-11-24 04:30:12,052 INFO L444 ceAbstractionStarter]: For program point L10-3(lines 10 13) no Hoare annotation was computed. [2019-11-24 04:30:12,052 INFO L440 ceAbstractionStarter]: At program point L10-5(lines 9 15) the Hoare annotation is: (and (= (+ ULTIMATE.start_main_~a~0 (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0)) (+ (* (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0) ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) [2019-11-24 04:30:12,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.11 04:30:12 BoogieIcfgContainer [2019-11-24 04:30:12,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-24 04:30:12,072 INFO L168 Benchmark]: Toolchain (without parser) took 1543.88 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 104.1 MB in the beginning and 129.1 MB in the end (delta: -25.0 MB). Peak memory consumption was 31.6 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:12,073 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 147.3 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-11-24 04:30:12,074 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.09 ms. Allocated memory is still 147.3 MB. Free memory was 103.9 MB in the beginning and 94.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:12,076 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.41 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 94.3 MB in the beginning and 184.1 MB in the end (delta: -89.8 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:12,077 INFO L168 Benchmark]: Boogie Preprocessor took 19.93 ms. Allocated memory is still 203.9 MB. Free memory was 184.1 MB in the beginning and 181.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:12,077 INFO L168 Benchmark]: RCFGBuilder took 254.28 ms. Allocated memory is still 203.9 MB. Free memory was 181.9 MB in the beginning and 169.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:12,078 INFO L168 Benchmark]: TraceAbstraction took 908.92 ms. Allocated memory is still 203.9 MB. Free memory was 169.2 MB in the beginning and 129.1 MB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 MB. Max. memory is 7.1 GB. [2019-11-24 04:30:12,083 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 147.3 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 251.09 ms. Allocated memory is still 147.3 MB. Free memory was 103.9 MB in the beginning and 94.3 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 105.41 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 94.3 MB in the beginning and 184.1 MB in the end (delta: -89.8 MB). Peak memory consumption was 11.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 19.93 ms. Allocated memory is still 203.9 MB. Free memory was 184.1 MB in the beginning and 181.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 254.28 ms. Allocated memory is still 203.9 MB. Free memory was 181.9 MB in the beginning and 169.8 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 908.92 ms. Allocated memory is still 203.9 MB. Free memory was 169.2 MB in the beginning and 129.1 MB in the end (delta: 40.1 MB). Peak memory consumption was 40.1 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 - 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 2 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: a + z * x == a * z * y + x && 1 == cond - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: a + z * x == a * z * y + x && 1 == cond - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (a == x && y == 1) || (a * z * y + x == a + z * x && 1 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 2 SDtfs, 25 SDslu, 2 SDs, 0 SdLazy, 13 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 59 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 22 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 87 SizeOfPredicates, 6 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...