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 --abstractinterpretationv2.abstract.domain IntervalDomain --traceabstraction.trace.refinement.strategy TAIPAN --traceabstraction.abstract.interpretation.mode USE_PREDICATES -i ../../../trunk/examples/svcomp/nla-digbench/fermat1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:06:30,730 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-15 01:06:30,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-15 01:06:30,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-15 01:06:30,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-15 01:06:30,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-15 01:06:30,757 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-15 01:06:30,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-15 01:06:30,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-15 01:06:30,774 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-15 01:06:30,775 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-15 01:06:30,777 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-15 01:06:30,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-15 01:06:30,782 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-15 01:06:30,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-15 01:06:30,787 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-15 01:06:30,789 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-15 01:06:30,791 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-15 01:06:30,793 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-15 01:06:30,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-15 01:06:30,801 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-15 01:06:30,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-15 01:06:30,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-15 01:06:30,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-15 01:06:30,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-15 01:06:30,821 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:06:30,823 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:06:30,826 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:06:30,827 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 [2019-10-15 01:06:30,848 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:06:30,848 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:06:30,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:06:30,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:06:30,852 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:06:30,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:06:30,853 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:06:30,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:06:30,854 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:06:30,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:06:30,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:06:30,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:06:30,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:06:30,856 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:06:30,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:06:30,856 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:06:30,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:06:30,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:06:30,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:06:30,857 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:06:30,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:06:30,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:06:30,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:06:30,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:06:30,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:06:30,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:06:30,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:06:30,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:06:30,860 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: Abstract domain -> IntervalDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstract interpretation Mode -> USE_PREDICATES [2019-10-15 01:06:31,135 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:06:31,158 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:06:31,161 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:06:31,163 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:06:31,164 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:06:31,164 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/fermat1.c [2019-10-15 01:06:31,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8bce3d6f/c7ee43af61c6406e8989f7694113a702/FLAG69b69a586 [2019-10-15 01:06:31,714 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:06:31,715 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/fermat1.c [2019-10-15 01:06:31,725 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8bce3d6f/c7ee43af61c6406e8989f7694113a702/FLAG69b69a586 [2019-10-15 01:06:32,093 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b8bce3d6f/c7ee43af61c6406e8989f7694113a702 [2019-10-15 01:06:32,105 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:06:32,106 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:06:32,107 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:06:32,108 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:06:32,111 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:06:32,112 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:06:32" (1/1) ... [2019-10-15 01:06:32,115 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d2c937 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:32, skipping insertion in model container [2019-10-15 01:06:32,115 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:06:32" (1/1) ... [2019-10-15 01:06:32,123 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:06:32,146 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:06:32,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:06:32,380 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:06:32,402 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:06:32,496 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:06:32,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:32 WrapperNode [2019-10-15 01:06:32,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:06:32,499 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:06:32,499 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:06:32,499 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:06:32,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:32" (1/1) ... [2019-10-15 01:06:32,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:32" (1/1) ... [2019-10-15 01:06:32,523 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:32" (1/1) ... [2019-10-15 01:06:32,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:32" (1/1) ... [2019-10-15 01:06:32,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:32" (1/1) ... [2019-10-15 01:06:32,535 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:32" (1/1) ... [2019-10-15 01:06:32,536 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:32" (1/1) ... [2019-10-15 01:06:32,538 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:06:32,539 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:06:32,539 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:06:32,539 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:06:32,540 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:32" (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 [2019-10-15 01:06:32,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:06:32,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:06:32,598 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-15 01:06:32,598 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:06:32,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:06:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-10-15 01:06:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-10-15 01:06:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-15 01:06:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:06:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:06:32,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:06:32,929 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:06:32,929 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-10-15 01:06:32,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:06:32 BoogieIcfgContainer [2019-10-15 01:06:32,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:06:32,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:06:32,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:06:32,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:06:32,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:06:32" (1/3) ... [2019-10-15 01:06:32,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3abedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:06:32, skipping insertion in model container [2019-10-15 01:06:32,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:06:32" (2/3) ... [2019-10-15 01:06:32,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a3abedf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:06:32, skipping insertion in model container [2019-10-15 01:06:32,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:06:32" (3/3) ... [2019-10-15 01:06:32,948 INFO L109 eAbstractionObserver]: Analyzing ICFG fermat1.c [2019-10-15 01:06:32,959 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:06:32,970 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:06:32,983 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:06:33,016 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:06:33,017 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:06:33,018 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:06:33,019 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:06:33,019 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:06:33,019 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:06:33,020 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:06:33,020 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:06:33,041 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-10-15 01:06:33,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 01:06:33,048 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:06:33,049 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:06:33,051 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:06:33,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:06:33,057 INFO L82 PathProgramCache]: Analyzing trace with hash 1029581307, now seen corresponding path program 1 times [2019-10-15 01:06:33,066 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:06:33,067 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699971065] [2019-10-15 01:06:33,067 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:33,067 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:33,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:06:33,142 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 01:06:33,143 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [679648296] [2019-10-15 01:06:33,143 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 [2019-10-15 01:06:33,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:06:33,191 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-15 01:06:33,196 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:06:33,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:33,213 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:06:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:33,231 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699971065] [2019-10-15 01:06:33,232 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 01:06:33,233 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679648296] [2019-10-15 01:06:33,234 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:06:33,234 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-15 01:06:33,235 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89208691] [2019-10-15 01:06:33,240 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-15 01:06:33,242 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:06:33,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-15 01:06:33,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:06:33,260 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-10-15 01:06:33,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:06:33,287 INFO L93 Difference]: Finished difference Result 47 states and 75 transitions. [2019-10-15 01:06:33,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-15 01:06:33,289 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-10-15 01:06:33,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:06:33,299 INFO L225 Difference]: With dead ends: 47 [2019-10-15 01:06:33,300 INFO L226 Difference]: Without dead ends: 21 [2019-10-15 01:06:33,304 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-15 01:06:33,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-15 01:06:33,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-10-15 01:06:33,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-10-15 01:06:33,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2019-10-15 01:06:33,352 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 10 [2019-10-15 01:06:33,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:06:33,353 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2019-10-15 01:06:33,353 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-15 01:06:33,354 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2019-10-15 01:06:33,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-10-15 01:06:33,354 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:06:33,355 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:06:33,558 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:06:33,558 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:06:33,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:06:33,559 INFO L82 PathProgramCache]: Analyzing trace with hash 989691158, now seen corresponding path program 1 times [2019-10-15 01:06:33,560 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:06:33,560 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251244541] [2019-10-15 01:06:33,560 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:33,560 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:33,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:06:33,565 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 01:06:33,565 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2016074691] [2019-10-15 01:06:33,565 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 [2019-10-15 01:06:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:06:33,598 WARN L254 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-15 01:06:33,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:06:33,763 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2019-10-15 01:06:33,780 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:06:36,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:36,085 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:06:38,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:38,207 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251244541] [2019-10-15 01:06:38,208 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 01:06:38,208 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2016074691] [2019-10-15 01:06:38,208 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:06:38,208 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-15 01:06:38,209 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554911158] [2019-10-15 01:06:38,210 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-15 01:06:38,211 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:06:38,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-15 01:06:38,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=40, Unknown=1, NotChecked=0, Total=56 [2019-10-15 01:06:38,212 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand 8 states. [2019-10-15 01:06:45,109 WARN L191 SmtUtils]: Spent 6.87 s on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2019-10-15 01:06:47,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:06:47,785 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2019-10-15 01:06:47,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:06:47,786 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2019-10-15 01:06:47,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:06:47,789 INFO L225 Difference]: With dead ends: 33 [2019-10-15 01:06:47,789 INFO L226 Difference]: Without dead ends: 29 [2019-10-15 01:06:47,790 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=25, Invalid=64, Unknown=1, NotChecked=0, Total=90 [2019-10-15 01:06:47,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-15 01:06:47,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2019-10-15 01:06:47,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-15 01:06:47,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2019-10-15 01:06:47,810 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 10 [2019-10-15 01:06:47,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:06:47,811 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2019-10-15 01:06:47,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-15 01:06:47,812 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2019-10-15 01:06:47,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-10-15 01:06:47,813 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:06:47,814 INFO L380 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:06:48,016 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:06:48,017 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:06:48,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:06:48,018 INFO L82 PathProgramCache]: Analyzing trace with hash -732641273, now seen corresponding path program 1 times [2019-10-15 01:06:48,018 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-15 01:06:48,019 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847475141] [2019-10-15 01:06:48,019 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:48,020 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:06:48,020 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:06:48,024 ERROR L273 tionRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-10-15 01:06:48,024 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1097142709] [2019-10-15 01:06:48,024 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 [2019-10-15 01:06:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:06:48,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 14 conjunts are in the unsatisfiable core [2019-10-15 01:06:48,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:06:48,189 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:06:48,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:48,238 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:06:48,340 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:06:48,356 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-15 01:06:48,387 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:06:48,387 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847475141] [2019-10-15 01:06:48,388 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 01:06:48,388 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097142709] [2019-10-15 01:06:48,388 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleAbstractInterpretation [1117059719] [2019-10-15 01:06:48,394 INFO L211 CegarAbsIntRunner]: Running AI on error trace of length 17 [2019-10-15 01:06:48,427 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-15 01:06:48,427 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-15 01:06:48,513 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-10-15 01:06:49,645 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-10-15 01:06:49,647 INFO L272 AbstractInterpreter]: Visited 15 different actions 20 times. Never merged. Never widened. Performed 30 root evaluator evaluations with a maximum evaluation depth of 14. Performed 30 inverse root evaluator evaluations with a maximum inverse evaluation depth of 14. Never found a fixpoint. Largest state had 7 variables. [2019-10-15 01:06:49,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:06:49,654 INFO L337 tionRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-10-15 01:06:49,654 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-15 01:06:49,655 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 13 [2019-10-15 01:06:49,655 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421825565] [2019-10-15 01:06:49,655 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-15 01:06:49,656 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy TAIPAN [2019-10-15 01:06:49,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-15 01:06:49,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2019-10-15 01:06:49,657 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand 13 states. [2019-10-15 01:06:49,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:06:49,887 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2019-10-15 01:06:49,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-15 01:06:49,888 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 16 [2019-10-15 01:06:49,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:06:49,889 INFO L225 Difference]: With dead ends: 23 [2019-10-15 01:06:49,889 INFO L226 Difference]: Without dead ends: 0 [2019-10-15 01:06:49,890 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2019-10-15 01:06:49,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-15 01:06:49,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-15 01:06:49,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-15 01:06:49,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-15 01:06:49,892 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-10-15 01:06:49,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:06:49,894 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-15 01:06:49,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-15 01:06:49,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-15 01:06:49,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-15 01:06:50,101 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:06:50,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-15 01:06:50,428 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2019-10-15 01:06:50,431 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-10-15 01:06:50,431 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:06:50,431 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-15 01:06:50,432 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-15 01:06:50,432 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-15 01:06:50,432 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-15 01:06:50,432 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 14 52) no Hoare annotation was computed. [2019-10-15 01:06:50,433 INFO L439 ceAbstractionStarter]: At program point L28-2(lines 28 48) the Hoare annotation is: (let ((.cse4 (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0))) (.cse1 (* main_~v~0 main_~v~0)) (.cse2 (* 4 main_~A~0)) (.cse3 (* 2 main_~u~0))) (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ .cse1 .cse2 .cse3) .cse4) (= .cse4 (+ .cse1 .cse2 (* 4 main_~r~0) .cse3)))) [2019-10-15 01:06:50,433 INFO L443 ceAbstractionStarter]: For program point L41-1(lines 28 48) no Hoare annotation was computed. [2019-10-15 01:06:50,434 INFO L439 ceAbstractionStarter]: At program point L41-2(lines 28 48) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-10-15 01:06:50,434 INFO L439 ceAbstractionStarter]: At program point L33-2(lines 33 39) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-10-15 01:06:50,434 INFO L439 ceAbstractionStarter]: At program point L29(line 29) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-10-15 01:06:50,434 INFO L443 ceAbstractionStarter]: For program point L29-1(lines 28 48) no Hoare annotation was computed. [2019-10-15 01:06:50,434 INFO L443 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2019-10-15 01:06:50,435 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 14 52) no Hoare annotation was computed. [2019-10-15 01:06:50,435 INFO L439 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-10-15 01:06:50,435 INFO L443 ceAbstractionStarter]: For program point L42-1(lines 41 47) no Hoare annotation was computed. [2019-10-15 01:06:50,435 INFO L439 ceAbstractionStarter]: At program point L34(line 34) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-10-15 01:06:50,435 INFO L443 ceAbstractionStarter]: For program point L34-1(lines 33 39) no Hoare annotation was computed. [2019-10-15 01:06:50,436 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 14 52) the Hoare annotation is: true [2019-10-15 01:06:50,436 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-10-15 01:06:50,436 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 6 12) the Hoare annotation is: true [2019-10-15 01:06:50,436 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 6 12) no Hoare annotation was computed. [2019-10-15 01:06:50,436 INFO L443 ceAbstractionStarter]: For program point L8(lines 8 9) no Hoare annotation was computed. [2019-10-15 01:06:50,436 INFO L443 ceAbstractionStarter]: For program point L7(lines 7 10) no Hoare annotation was computed. [2019-10-15 01:06:50,436 INFO L443 ceAbstractionStarter]: For program point L7-2(lines 6 12) no Hoare annotation was computed. [2019-10-15 01:06:50,440 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 01:06:50,441 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 01:06:50,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 01:06:50,449 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 01:06:50,450 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 01:06:50,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 01:06:50,451 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 01:06:50,452 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 01:06:50,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 01:06:50 BoogieIcfgContainer [2019-10-15 01:06:50,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-15 01:06:50,461 INFO L168 Benchmark]: Toolchain (without parser) took 18350.57 ms. Allocated memory was 139.5 MB in the beginning and 276.3 MB in the end (delta: 136.8 MB). Free memory was 103.2 MB in the beginning and 172.3 MB in the end (delta: -69.0 MB). Peak memory consumption was 67.8 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:50,465 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-15 01:06:50,467 INFO L168 Benchmark]: CACSL2BoogieTranslator took 390.99 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 103.0 MB in the beginning and 182.3 MB in the end (delta: -79.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:50,469 INFO L168 Benchmark]: Boogie Preprocessor took 39.74 ms. Allocated memory is still 202.9 MB. Free memory was 182.3 MB in the beginning and 180.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:50,474 INFO L168 Benchmark]: RCFGBuilder took 392.14 ms. Allocated memory is still 202.9 MB. Free memory was 180.1 MB in the beginning and 167.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:50,476 INFO L168 Benchmark]: TraceAbstraction took 17521.94 ms. Allocated memory was 202.9 MB in the beginning and 276.3 MB in the end (delta: 73.4 MB). Free memory was 167.5 MB in the beginning and 172.3 MB in the end (delta: -4.8 MB). Peak memory consumption was 68.6 MB. Max. memory is 7.1 GB. [2019-10-15 01:06:50,486 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 139.5 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 390.99 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 103.0 MB in the beginning and 182.3 MB in the end (delta: -79.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 39.74 ms. Allocated memory is still 202.9 MB. Free memory was 182.3 MB in the beginning and 180.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 392.14 ms. Allocated memory is still 202.9 MB. Free memory was 180.1 MB in the beginning and 167.5 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17521.94 ms. Allocated memory was 202.9 MB in the beginning and 276.3 MB in the end (delta: 73.4 MB). Free memory was 167.5 MB in the beginning and 172.3 MB in the end (delta: -4.8 MB). Peak memory consumption was 68.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] * 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant [2019-10-15 01:06:50,500 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 01:06:50,501 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 01:06:50,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 01:06:50,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] Derived loop invariant: (\exists main_~R~0 : int :: (main_~R~0 + -1) * (main_~R~0 + -1) < A) && 2 * v + u * u == v * v + 4 * A + 4 * r + 2 * u - InvariantResult [Line: 33]: Loop Invariant [2019-10-15 01:06:50,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 01:06:50,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 01:06:50,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-10-15 01:06:50,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] Derived loop invariant: (\exists main_~R~0 : int :: (main_~R~0 + -1) * (main_~R~0 + -1) < A) && 2 * v + u * u == v * v + 4 * A + 4 * r + 2 * u - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. Result: SAFE, OverallTime: 17.4s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 9.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, HoareTripleCheckerStatistics: 59 SDtfs, 38 SDslu, 154 SDs, 0 SdLazy, 154 SolverSat, 22 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 9.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 18 PreInvPairs, 24 NumberOfFragments, 215 HoareAnnotationTreeSize, 18 FomulaSimplifications, 440 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 4 QuantifiedInterpolants, 4347 SizeOfPredicates, 11 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 2/4 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...