/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/fermat2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:17:33,791 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:17:33,793 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:17:33,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:17:33,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:17:33,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:17:33,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:17:33,809 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:17:33,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:17:33,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:17:33,812 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:17:33,813 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:17:33,814 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:17:33,815 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:17:33,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:17:33,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:17:33,817 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:17:33,818 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:17:33,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:17:33,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:17:33,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:17:33,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:17:33,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:17:33,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:17:33,828 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:17:33,837 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 22:17:33,851 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:17:33,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:17:33,852 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-23 22:17:33,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-23 22:17:33,853 INFO L138 SettingsManager]: * Use SBE=true [2019-11-23 22:17:33,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:17:33,853 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:17:33,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:17:33,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:17:33,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:17:33,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:17:33,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:17:33,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:17:33,854 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-11-23 22:17:33,855 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:17:33,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:17:33,855 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-23 22:17:33,855 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:17:33,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:17:33,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-23 22:17:33,856 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:17:33,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:17:33,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:17:33,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:17:33,857 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:17:33,857 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:17:33,857 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-23 22:17:33,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:17:33,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:17:33,858 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:17:34,141 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:17:34,154 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:17:34,157 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:17:34,158 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:17:34,158 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:17:34,159 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/fermat2.c [2019-11-23 22:17:34,221 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83c5157ae/22446453d6d144d6beb5d3a6188b474f/FLAGea1bf6e3f [2019-11-23 22:17:34,644 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:17:34,645 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/fermat2.c [2019-11-23 22:17:34,652 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83c5157ae/22446453d6d144d6beb5d3a6188b474f/FLAGea1bf6e3f [2019-11-23 22:17:35,009 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83c5157ae/22446453d6d144d6beb5d3a6188b474f [2019-11-23 22:17:35,018 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:17:35,019 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:17:35,020 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:17:35,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:17:35,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:17:35,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:17:35" (1/1) ... [2019-11-23 22:17:35,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a756964 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:35, skipping insertion in model container [2019-11-23 22:17:35,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:17:35" (1/1) ... [2019-11-23 22:17:35,036 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:17:35,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:17:35,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:17:35,229 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:17:35,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:17:35,263 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:17:35,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:35 WrapperNode [2019-11-23 22:17:35,264 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:17:35,265 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:17:35,265 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:17:35,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:17:35,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:35" (1/1) ... [2019-11-23 22:17:35,279 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:35" (1/1) ... [2019-11-23 22:17:35,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:17:35,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:17:35,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:17:35,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:17:35,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:35" (1/1) ... [2019-11-23 22:17:35,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:35" (1/1) ... [2019-11-23 22:17:35,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:35" (1/1) ... [2019-11-23 22:17:35,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:35" (1/1) ... [2019-11-23 22:17:35,395 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:35" (1/1) ... [2019-11-23 22:17:35,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:35" (1/1) ... [2019-11-23 22:17:35,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:35" (1/1) ... [2019-11-23 22:17:35,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:17:35,402 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:17:35,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:17:35,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:17:35,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:35" (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 22:17:35,451 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:17:35,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:17:35,672 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:17:35,672 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-23 22:17:35,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:17:35 BoogieIcfgContainer [2019-11-23 22:17:35,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:17:35,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:17:35,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:17:35,677 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:17:35,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:17:35" (1/3) ... [2019-11-23 22:17:35,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f444b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:17:35, skipping insertion in model container [2019-11-23 22:17:35,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:17:35" (2/3) ... [2019-11-23 22:17:35,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f444b00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:17:35, skipping insertion in model container [2019-11-23 22:17:35,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:17:35" (3/3) ... [2019-11-23 22:17:35,681 INFO L109 eAbstractionObserver]: Analyzing ICFG fermat2.c [2019-11-23 22:17:35,703 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:17:35,713 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-11-23 22:17:35,748 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-11-23 22:17:35,785 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:17:35,785 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:17:35,785 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:17:35,786 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:17:35,786 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:17:35,786 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:17:35,786 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:17:35,786 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:17:35,801 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-23 22:17:35,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-23 22:17:35,806 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:17:35,807 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-23 22:17:35,807 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:17:35,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:17:35,813 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-23 22:17:35,820 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:17:35,820 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903748122] [2019-11-23 22:17:35,820 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:17:35,883 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:17:35,883 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [754190276] [2019-11-23 22:17:35,884 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 22:17:35,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:17:35,920 WARN L253 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-23 22:17:35,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:17:36,079 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2019-11-23 22:17:36,094 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:17:36,702 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 22:17:36,702 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [903748122] [2019-11-23 22:17:36,703 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:17:36,704 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754190276] [2019-11-23 22:17:36,704 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:17:36,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 22:17:36,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918913457] [2019-11-23 22:17:36,711 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:17:36,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:17:36,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:17:36,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-11-23 22:17:36,723 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2019-11-23 22:17:38,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:17:38,945 INFO L93 Difference]: Finished difference Result 42 states and 59 transitions. [2019-11-23 22:17:38,946 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 22:17:38,947 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2019-11-23 22:17:38,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:17:38,956 INFO L225 Difference]: With dead ends: 42 [2019-11-23 22:17:38,956 INFO L226 Difference]: Without dead ends: 20 [2019-11-23 22:17:38,960 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-11-23 22:17:38,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2019-11-23 22:17:38,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 13. [2019-11-23 22:17:38,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-11-23 22:17:38,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2019-11-23 22:17:38,993 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 4 [2019-11-23 22:17:38,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:17:38,994 INFO L462 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2019-11-23 22:17:38,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:17:38,994 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2019-11-23 22:17:38,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-23 22:17:38,995 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:17:38,995 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:17:39,198 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:17:39,199 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:17:39,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:17:39,200 INFO L82 PathProgramCache]: Analyzing trace with hash -1361018346, now seen corresponding path program 1 times [2019-11-23 22:17:39,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-23 22:17:39,201 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866879956] [2019-11-23 22:17:39,202 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:17:39,205 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 22:17:39,206 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [868210573] [2019-11-23 22:17:39,206 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 22:17:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:17:39,230 WARN L253 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-23 22:17:39,231 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:17:41,313 WARN L192 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 30 [2019-11-23 22:17:41,317 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:17:41,427 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-23 22:17:41,455 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 22:17:41,455 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866879956] [2019-11-23 22:17:41,455 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 22:17:41,456 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [868210573] [2019-11-23 22:17:41,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:17:41,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-23 22:17:41,456 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158095337] [2019-11-23 22:17:41,458 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-11-23 22:17:41,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-23 22:17:41,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-11-23 22:17:41,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=27, Unknown=1, NotChecked=0, Total=42 [2019-11-23 22:17:41,459 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 7 states. [2019-11-23 22:17:41,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:17:41,763 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-11-23 22:17:41,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 22:17:41,764 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2019-11-23 22:17:41,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:17:41,765 INFO L225 Difference]: With dead ends: 13 [2019-11-23 22:17:41,765 INFO L226 Difference]: Without dead ends: 0 [2019-11-23 22:17:41,767 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=28, Invalid=41, Unknown=3, NotChecked=0, Total=72 [2019-11-23 22:17:41,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-23 22:17:41,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-23 22:17:41,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-23 22:17:41,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-23 22:17:41,768 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-23 22:17:41,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:17:41,769 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-23 22:17:41,769 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-11-23 22:17:41,770 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-23 22:17:41,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-23 22:17:41,971 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:17:41,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-23 22:17:47,530 WARN L192 SmtUtils]: Spent 5.52 s on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-11-23 22:17:47,533 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-23 22:17:47,533 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-23 22:17:47,533 INFO L444 ceAbstractionStarter]: For program point L7(lines 7 10) no Hoare annotation was computed. [2019-11-23 22:17:47,534 INFO L440 ceAbstractionStarter]: At program point L7-2(line 30) 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 22:17:47,534 INFO L444 ceAbstractionStarter]: For program point L7-3(lines 7 10) no Hoare annotation was computed. [2019-11-23 22:17:47,534 INFO L447 ceAbstractionStarter]: At program point L7-5(lines 6 12) the Hoare annotation is: true [2019-11-23 22:17:47,535 INFO L444 ceAbstractionStarter]: For program point L32(lines 32 38) no Hoare annotation was computed. [2019-11-23 22:17:47,535 INFO L440 ceAbstractionStarter]: At program point L32-2(lines 28 39) 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 22:17:47,535 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-23 22:17:47,535 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-23 22:17:47,536 INFO L444 ceAbstractionStarter]: For program point L28-2(lines 28 39) no Hoare annotation was computed. [2019-11-23 22:17:47,536 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-23 22:17:47,536 INFO L447 ceAbstractionStarter]: At program point L43(lines 14 44) the Hoare annotation is: true [2019-11-23 22:17:47,536 INFO L444 ceAbstractionStarter]: For program point L8(lines 8 9) no Hoare annotation was computed. [2019-11-23 22:17:47,536 INFO L444 ceAbstractionStarter]: For program point L8-1(lines 8 9) no Hoare annotation was computed. [2019-11-23 22:17:47,543 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:17:47,556 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:17:47,562 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:17:47,563 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:17:47,570 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:17:47,570 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:17:47,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:17:47,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:17:47,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:17:47 BoogieIcfgContainer [2019-11-23 22:17:47,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-23 22:17:47,592 INFO L168 Benchmark]: Toolchain (without parser) took 12572.85 ms. Allocated memory was 144.2 MB in the beginning and 232.3 MB in the end (delta: 88.1 MB). Free memory was 101.7 MB in the beginning and 201.6 MB in the end (delta: -99.9 MB). Peak memory consumption was 78.9 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:47,593 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-11-23 22:17:47,595 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.14 ms. Allocated memory is still 144.2 MB. Free memory was 101.5 MB in the beginning and 91.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:47,596 INFO L168 Benchmark]: Boogie Procedure Inliner took 118.24 ms. Allocated memory was 144.2 MB in the beginning and 200.3 MB in the end (delta: 56.1 MB). Free memory was 91.6 MB in the beginning and 179.4 MB in the end (delta: -87.7 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:47,597 INFO L168 Benchmark]: Boogie Preprocessor took 18.64 ms. Allocated memory is still 200.3 MB. Free memory was 179.4 MB in the beginning and 177.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:47,599 INFO L168 Benchmark]: RCFGBuilder took 271.50 ms. Allocated memory is still 200.3 MB. Free memory was 177.6 MB in the beginning and 165.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:47,601 INFO L168 Benchmark]: TraceAbstraction took 11915.66 ms. Allocated memory was 200.3 MB in the beginning and 232.3 MB in the end (delta: 32.0 MB). Free memory was 165.9 MB in the beginning and 203.0 MB in the end (delta: -37.2 MB). Peak memory consumption was 86.9 MB. Max. memory is 7.1 GB. [2019-11-23 22:17:47,612 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 244.14 ms. Allocated memory is still 144.2 MB. Free memory was 101.5 MB in the beginning and 91.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 118.24 ms. Allocated memory was 144.2 MB in the beginning and 200.3 MB in the end (delta: 56.1 MB). Free memory was 91.6 MB in the beginning and 179.4 MB in the end (delta: -87.7 MB). Peak memory consumption was 10.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 18.64 ms. Allocated memory is still 200.3 MB. Free memory was 179.4 MB in the beginning and 177.6 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 271.50 ms. Allocated memory is still 200.3 MB. Free memory was 177.6 MB in the beginning and 165.9 MB in the end (delta: 11.7 MB). Peak memory consumption was 11.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11915.66 ms. Allocated memory was 200.3 MB in the beginning and 232.3 MB in the end (delta: 32.0 MB). Free memory was 165.9 MB in the beginning and 203.0 MB in the end (delta: -37.2 MB). Peak memory consumption was 86.9 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] * 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 - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant [2019-11-23 22:17:47,634 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:17:47,634 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:17:47,635 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:17:47,635 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 - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant [2019-11-23 22:17:47,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:17:47,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:17:47,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-23 22:17:47,640 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) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 2 error locations. Result: SAFE, OverallTime: 11.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.5s, HoareTripleCheckerStatistics: 11 SDtfs, 22 SDslu, 20 SDs, 0 SdLazy, 33 SolverSat, 15 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 143 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 17 FormulaSimplificationTreeSizeReductionInter, 5.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 4 QuantifiedInterpolants, 1062 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...