/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/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/nla-digbench/fermat1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:17:19,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:17:19,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:17:19,834 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:17:19,835 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:17:19,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:17:19,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:17:19,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:17:19,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:17:19,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:17:19,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:17:19,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:17:19,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:17:19,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:17:19,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:17:19,864 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:17:19,865 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:17:19,866 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:17:19,867 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:17:19,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:17:19,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:17:19,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:17:19,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:17:19,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:17:19,884 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-23 22:17:19,884 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-23 22:17:19,885 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-23 22:17:19,887 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-23 22:17:19,888 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-23 22:17:19,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-23 22:17:19,889 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-23 22:17:19,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-23 22:17:19,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-23 22:17:19,892 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-23 22:17:19,893 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-23 22:17:19,893 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-23 22:17:19,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-23 22:17:19,894 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-23 22:17:19,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:17:19,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:17:19,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:17:19,897 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 [2019-11-23 22:17:19,928 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:17:19,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:17:19,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:17:19,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:17:19,930 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:17:19,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:17:19,931 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:17:19,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:17:19,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:17:19,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:17:19,931 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:17:19,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:17:19,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:17:19,935 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:17:19,935 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:17:19,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:17:19,936 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:17:19,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:17:19,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:17:19,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:17:19,937 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:17:19,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:17:19,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:17:19,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:17:19,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:17:19,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:17:19,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:17:19,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:17:19,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:17:19,939 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:17:20,216 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:17:20,231 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:17:20,236 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:17:20,238 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:17:20,238 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:17:20,239 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/fermat1.c [2019-11-23 22:17:20,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/485672b97/8d06b05c40934748ba53270ec48764af/FLAGe6f6293cc [2019-11-23 22:17:20,738 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:17:20,739 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/fermat1.c [2019-11-23 22:17:20,746 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/485672b97/8d06b05c40934748ba53270ec48764af/FLAGe6f6293cc [2019-11-23 22:17:21,163 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/485672b97/8d06b05c40934748ba53270ec48764af [2019-11-23 22:17:21,173 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:17:21,174 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:17:21,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:17:21,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:17:21,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:17:21,180 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:17:21" (1/1) ... [2019-11-23 22:17:21,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27850e8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:21, skipping insertion in model container [2019-11-23 22:17:21,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:17:21" (1/1) ... [2019-11-23 22:17:21,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:17:21,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:17:21,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:17:21,397 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:17:21,432 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:17:21,445 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:17:21,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:21 WrapperNode [2019-11-23 22:17:21,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:17:21,446 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:17:21,446 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:17:21,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:17:21,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:21" (1/1) ... [2019-11-23 22:17:21,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:21" (1/1) ... [2019-11-23 22:17:21,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:17:21,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:17:21,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:17:21,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:17:21,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:21" (1/1) ... [2019-11-23 22:17:21,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:21" (1/1) ... [2019-11-23 22:17:21,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:21" (1/1) ... [2019-11-23 22:17:21,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:21" (1/1) ... [2019-11-23 22:17:21,575 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:21" (1/1) ... [2019-11-23 22:17:21,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:21" (1/1) ... [2019-11-23 22:17:21,583 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:21" (1/1) ... [2019-11-23 22:17:21,586 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:17:21,586 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:17:21,586 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:17:21,586 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:17:21,587 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:21" (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 [2019-11-23 22:17:21,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:17:21,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:17:21,877 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:17:21,877 INFO L284 CfgBuilder]: Removed 15 assume(true) statements. [2019-11-23 22:17:21,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:17:21 BoogieIcfgContainer [2019-11-23 22:17:21,880 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:17:21,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:17:21,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:17:21,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:17:21,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:17:21" (1/3) ... [2019-11-23 22:17:21,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8fc8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:17:21, skipping insertion in model container [2019-11-23 22:17:21,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:21" (2/3) ... [2019-11-23 22:17:21,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d8fc8d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:17:21, skipping insertion in model container [2019-11-23 22:17:21,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:17:21" (3/3) ... [2019-11-23 22:17:21,902 INFO L109 eAbstractionObserver]: Analyzing ICFG fermat1.c [2019-11-23 22:17:21,932 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:17:21,939 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-23 22:17:21,960 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-23 22:17:21,983 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:17:21,983 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:17:21,984 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:17:21,984 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:17:21,984 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:17:21,984 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:17:21,984 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:17:21,984 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:17:21,998 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-11-23 22:17:22,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-23 22:17:22,002 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:17:22,003 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-23 22:17:22,003 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:17:22,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:17:22,008 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-23 22:17:22,014 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:17:22,015 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741482746] [2019-11-23 22:17:22,015 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:17:22,072 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:17:22,073 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [460913512] [2019-11-23 22:17:22,073 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 [2019-11-23 22:17:22,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:17:22,110 WARN L253 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-23 22:17:22,115 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:17:22,314 WARN L192 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2019-11-23 22:17:22,330 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:17:41,823 WARN L192 SmtUtils]: Spent 14.71 s on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2019-11-23 22:17:44,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:17:44,549 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741482746] [2019-11-23 22:17:44,549 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:17:44,549 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460913512] [2019-11-23 22:17:44,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:17:44,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:17:44,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962941488] [2019-11-23 22:17:44,556 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:17:44,557 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:17:44,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:17:44,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=6, Unknown=1, NotChecked=0, Total=12 [2019-11-23 22:17:44,573 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2019-11-23 22:17:56,506 WARN L192 SmtUtils]: Spent 6.40 s on a formula simplification that was a NOOP. DAG size: 43 [2019-11-23 22:18:18,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:18:18,761 INFO L93 Difference]: Finished difference Result 51 states and 81 transitions. [2019-11-23 22:18:18,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:18:18,762 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-23 22:18:18,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:18:18,771 INFO L225 Difference]: With dead ends: 51 [2019-11-23 22:18:18,771 INFO L226 Difference]: Without dead ends: 24 [2019-11-23 22:18:18,774 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.5s TimeCoverageRelationStatistics Valid=9, Invalid=8, Unknown=3, NotChecked=0, Total=20 [2019-11-23 22:18:18,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-11-23 22:18:18,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2019-11-23 22:18:18,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-11-23 22:18:18,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2019-11-23 22:18:18,803 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 4 [2019-11-23 22:18:18,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:18:18,804 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2019-11-23 22:18:18,804 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:18:18,804 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2019-11-23 22:18:18,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-23 22:18:18,805 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:18:18,805 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:18:19,005 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:18:19,006 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:18:19,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:18:19,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1360971675, now seen corresponding path program 1 times [2019-11-23 22:18:19,008 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:18:19,008 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159403646] [2019-11-23 22:18:19,008 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:18:19,011 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:18:19,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2051723093] [2019-11-23 22:18:19,012 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 [2019-11-23 22:18:19,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:18:19,032 WARN L253 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-23 22:18:19,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:18:21,152 WARN L192 SmtUtils]: Spent 2.08 s on a formula simplification that was a NOOP. DAG size: 30 [2019-11-23 22:18:21,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:18:21,232 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:18:21,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:18:21,258 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159403646] [2019-11-23 22:18:21,259 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:18:21,259 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051723093] [2019-11-23 22:18:21,259 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:18:21,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-23 22:18:21,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334893981] [2019-11-23 22:18:21,261 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-23 22:18:21,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:18:21,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-23 22:18:21,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-11-23 22:18:21,262 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand 7 states. [2019-11-23 22:18:23,363 WARN L192 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2019-11-23 22:18:23,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:18:23,585 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2019-11-23 22:18:23,585 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 22:18:23,585 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-11-23 22:18:23,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:18:23,586 INFO L225 Difference]: With dead ends: 22 [2019-11-23 22:18:23,586 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 22:18:23,587 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-11-23 22:18:23,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 22:18:23,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 22:18:23,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 22:18:23,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 22:18:23,588 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-23 22:18:23,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:18:23,589 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 22:18:23,589 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-23 22:18:23,589 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 22:18:23,589 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 22:18:23,790 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:18:23,795 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 22:18:32,486 WARN L192 SmtUtils]: Spent 8.64 s on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-11-23 22:18:32,503 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-23 22:18:32,503 INFO L444 ceAbstractionStarter]: For program point L7(lines 7 10) no Hoare annotation was computed. [2019-11-23 22:18:32,503 INFO L440 ceAbstractionStarter]: At program point L7-2(lines 30 31) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* 4 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* 2 ULTIMATE.start_main_~v~0) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0)))) [2019-11-23 22:18:32,504 INFO L444 ceAbstractionStarter]: For program point L7-3(lines 7 10) no Hoare annotation was computed. [2019-11-23 22:18:32,504 INFO L440 ceAbstractionStarter]: At program point L7-5(lines 35 36) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* 4 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* 2 ULTIMATE.start_main_~v~0) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0)))) [2019-11-23 22:18:32,509 INFO L444 ceAbstractionStarter]: For program point L7-6(lines 7 10) no Hoare annotation was computed. [2019-11-23 22:18:32,509 INFO L440 ceAbstractionStarter]: At program point L7-8(lines 43 44) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* 4 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* 2 ULTIMATE.start_main_~v~0) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0)))) [2019-11-23 22:18:32,509 INFO L444 ceAbstractionStarter]: For program point L7-9(lines 7 10) no Hoare annotation was computed. [2019-11-23 22:18:32,509 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 22:18:32,509 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 22:18:32,510 INFO L447 ceAbstractionStarter]: At program point L7-11(lines 6 12) the Hoare annotation is: true [2019-11-23 22:18:32,510 INFO L444 ceAbstractionStarter]: For program point L28-2(lines 28 48) no Hoare annotation was computed. [2019-11-23 22:18:32,510 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-23 22:18:32,510 INFO L444 ceAbstractionStarter]: For program point L8(lines 8 9) no Hoare annotation was computed. [2019-11-23 22:18:32,511 INFO L444 ceAbstractionStarter]: For program point L41-1(lines 28 48) no Hoare annotation was computed. [2019-11-23 22:18:32,511 INFO L444 ceAbstractionStarter]: For program point L8-1(lines 8 9) no Hoare annotation was computed. [2019-11-23 22:18:32,511 INFO L440 ceAbstractionStarter]: At program point L41-2(lines 28 48) the Hoare annotation is: (let ((.cse0 (= (+ (* ULTIMATE.start_main_~u~0 2) (* ULTIMATE.start_main_~A~0 4) (* ULTIMATE.start_main_~r~0 4) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* ULTIMATE.start_main_~v~0 2) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0))))) (or (let ((.cse2 (div (+ (* ULTIMATE.start_main_~u~0 (- 1)) 1) (- 2)))) (and .cse0 (= 1 (mod ULTIMATE.start_main_~A~0 2)) (< (let ((.cse1 (+ .cse2 (- 1)))) (* .cse1 .cse1)) ULTIMATE.start_main_~A~0) (= ULTIMATE.start_main_~v~0 1) (= (* .cse2 .cse2) (+ ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0)))) (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse3 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse3 .cse3)) ULTIMATE.start_main_~A~0)) .cse0 (= 1 ULTIMATE.start___VERIFIER_assert_~cond)))) [2019-11-23 22:18:32,511 INFO L444 ceAbstractionStarter]: For program point L8-2(lines 8 9) no Hoare annotation was computed. [2019-11-23 22:18:32,511 INFO L444 ceAbstractionStarter]: For program point L8-3(lines 8 9) no Hoare annotation was computed. [2019-11-23 22:18:32,511 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 22:18:32,512 INFO L440 ceAbstractionStarter]: At program point L33-2(lines 33 39) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* 4 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* 2 ULTIMATE.start_main_~v~0) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0)))) [2019-11-23 22:18:32,512 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-23 22:18:32,512 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-23 22:18:32,512 INFO L447 ceAbstractionStarter]: At program point L51(lines 14 52) the Hoare annotation is: true [2019-11-23 22:18:32,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,536 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,538 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,538 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,539 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,539 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,539 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,547 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,548 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,548 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,548 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,549 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:18:32 BoogieIcfgContainer [2019-11-23 22:18:32,552 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:18:32,554 INFO L168 Benchmark]: Toolchain (without parser) took 71380.05 ms. Allocated memory was 145.2 MB in the beginning and 235.4 MB in the end (delta: 90.2 MB). Free memory was 101.8 MB in the beginning and 184.9 MB in the end (delta: -83.1 MB). Peak memory consumption was 7.1 MB. Max. memory is 7.1 GB. [2019-11-23 22:18:32,555 INFO L168 Benchmark]: CDTParser took 1.38 ms. Allocated memory is still 145.2 MB. Free memory is still 119.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-23 22:18:32,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.25 ms. Allocated memory is still 145.2 MB. Free memory was 101.8 MB in the beginning and 91.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-11-23 22:18:32,557 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.81 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 91.6 MB in the beginning and 181.2 MB in the end (delta: -89.6 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-11-23 22:18:32,558 INFO L168 Benchmark]: Boogie Preprocessor took 24.02 ms. Allocated memory is still 202.4 MB. Free memory was 181.2 MB in the beginning and 178.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2019-11-23 22:18:32,559 INFO L168 Benchmark]: RCFGBuilder took 293.88 ms. Allocated memory is still 202.4 MB. Free memory was 178.9 MB in the beginning and 165.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-11-23 22:18:32,560 INFO L168 Benchmark]: TraceAbstraction took 70663.44 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 165.8 MB in the beginning and 184.9 MB in the end (delta: -19.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-11-23 22:18:32,564 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.38 ms. Allocated memory is still 145.2 MB. Free memory is still 119.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.25 ms. Allocated memory is still 145.2 MB. Free memory was 101.8 MB in the beginning and 91.6 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 115.81 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 91.6 MB in the beginning and 181.2 MB in the end (delta: -89.6 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.02 ms. Allocated memory is still 202.4 MB. Free memory was 181.2 MB in the beginning and 178.9 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 293.88 ms. Allocated memory is still 202.4 MB. Free memory was 178.9 MB in the beginning and 165.8 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 70663.44 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 165.8 MB in the beginning and 184.9 MB in the end (delta: -19.1 MB). Peak memory consumption was 13.9 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[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_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 - 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 4 specifications checked. All of them hold - InvariantResult [Line: 43]: Loop Invariant [2019-11-23 22:18:32,580 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,580 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u - InvariantResult [Line: 33]: Loop Invariant [2019-11-23 22:18:32,581 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,582 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u - InvariantResult [Line: 30]: Loop Invariant [2019-11-23 22:18:32,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,584 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant [2019-11-23 22:18:32,584 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,585 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,585 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,585 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((((u * 2 + A * 4 + r * 4 + v * v == v * 2 + u * u && 1 == A % 2) && ((u * -1 + 1) / -2 + -1) * ((u * -1 + 1) / -2 + -1) < A) && v == 1) && (u * -1 + 1) / -2 * ((u * -1 + 1) / -2) == A + r) || (((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && u * 2 + A * 4 + r * 4 + v * v == v * 2 + u * u) && 1 == cond) - InvariantResult [Line: 35]: Loop Invariant [2019-11-23 22:18:32,586 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,586 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:18:32,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 4 error locations. Result: SAFE, OverallTime: 70.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 36.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.7s, HoareTripleCheckerStatistics: 22 SDtfs, 26 SDslu, 29 SDs, 0 SdLazy, 39 SolverSat, 20 SolverUnsat, 13 SolverUnknown, 0 SolverNotchecked, 23.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 30.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 15 NumberOfFragments, 248 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 8.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 24.6s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 5 QuantifiedInterpolants, 1350 SizeOfPredicates, 16 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 28 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...