/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/AutomizerC.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-fb55353 [2019-11-06 21:26:03,525 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-06 21:26:03,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-06 21:26:03,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-06 21:26:03,538 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-06 21:26:03,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-06 21:26:03,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-06 21:26:03,542 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-06 21:26:03,544 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-06 21:26:03,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-06 21:26:03,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-06 21:26:03,547 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-06 21:26:03,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-06 21:26:03,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-06 21:26:03,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-06 21:26:03,550 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-06 21:26:03,550 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-06 21:26:03,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-06 21:26:03,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-06 21:26:03,554 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-06 21:26:03,556 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-06 21:26:03,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-06 21:26:03,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-06 21:26:03,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-06 21:26:03,561 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-06 21:26:03,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-06 21:26:03,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-06 21:26:03,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-06 21:26:03,570 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 [2019-11-06 21:26:03,583 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-06 21:26:03,583 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-06 21:26:03,584 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-06 21:26:03,585 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-06 21:26:03,585 INFO L138 SettingsManager]: * Use SBE=true [2019-11-06 21:26:03,585 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-06 21:26:03,585 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-06 21:26:03,586 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-06 21:26:03,586 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-06 21:26:03,586 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-06 21:26:03,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-06 21:26:03,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-06 21:26:03,587 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-06 21:26:03,587 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-06 21:26:03,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-06 21:26:03,587 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-06 21:26:03,587 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-06 21:26:03,587 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-06 21:26:03,588 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-06 21:26:03,588 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-06 21:26:03,588 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-06 21:26:03,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-06 21:26:03,589 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-06 21:26:03,589 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-06 21:26:03,589 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-06 21:26:03,589 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-06 21:26:03,589 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-06 21:26:03,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-06 21:26:03,590 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-06 21:26:03,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-06 21:26:03,880 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-06 21:26:03,884 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-06 21:26:03,885 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-06 21:26:03,886 INFO L275 PluginConnector]: CDTParser initialized [2019-11-06 21:26:03,887 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench/fermat1.c [2019-11-06 21:26:03,961 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f24f7dbc/cd30e72ca55d445a8884be7ef73029f1/FLAG25de507f6 [2019-11-06 21:26:04,439 INFO L306 CDTParser]: Found 1 translation units. [2019-11-06 21:26:04,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench/fermat1.c [2019-11-06 21:26:04,448 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f24f7dbc/cd30e72ca55d445a8884be7ef73029f1/FLAG25de507f6 [2019-11-06 21:26:04,792 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f24f7dbc/cd30e72ca55d445a8884be7ef73029f1 [2019-11-06 21:26:04,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-06 21:26:04,802 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-06 21:26:04,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-06 21:26:04,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-06 21:26:04,806 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-06 21:26:04,807 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:26:04" (1/1) ... [2019-11-06 21:26:04,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b0dce61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:26:04, skipping insertion in model container [2019-11-06 21:26:04,811 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:26:04" (1/1) ... [2019-11-06 21:26:04,818 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-06 21:26:04,836 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-06 21:26:05,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:26:05,007 INFO L188 MainTranslator]: Completed pre-run [2019-11-06 21:26:05,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-06 21:26:05,133 INFO L192 MainTranslator]: Completed translation [2019-11-06 21:26:05,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:26:05 WrapperNode [2019-11-06 21:26:05,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-06 21:26:05,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-06 21:26:05,135 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-06 21:26:05,135 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-06 21:26:05,148 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:26:05" (1/1) ... [2019-11-06 21:26:05,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:26:05" (1/1) ... [2019-11-06 21:26:05,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:26:05" (1/1) ... [2019-11-06 21:26:05,164 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:26:05" (1/1) ... [2019-11-06 21:26:05,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:26:05" (1/1) ... [2019-11-06 21:26:05,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:26:05" (1/1) ... [2019-11-06 21:26:05,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:26:05" (1/1) ... [2019-11-06 21:26:05,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-06 21:26:05,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-06 21:26:05,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-06 21:26:05,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-06 21:26:05,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:26:05" (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 [2019-11-06 21:26:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-06 21:26:05,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-06 21:26:05,231 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-11-06 21:26:05,231 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-06 21:26:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-06 21:26:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-11-06 21:26:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-11-06 21:26:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-11-06 21:26:05,231 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-06 21:26:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-06 21:26:05,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-06 21:26:05,432 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-06 21:26:05,432 INFO L284 CfgBuilder]: Removed 3 assume(true) statements. [2019-11-06 21:26:05,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:26:05 BoogieIcfgContainer [2019-11-06 21:26:05,433 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-06 21:26:05,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-06 21:26:05,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-06 21:26:05,438 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-06 21:26:05,438 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:26:04" (1/3) ... [2019-11-06 21:26:05,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6179ab73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:26:05, skipping insertion in model container [2019-11-06 21:26:05,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:26:05" (2/3) ... [2019-11-06 21:26:05,439 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6179ab73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:26:05, skipping insertion in model container [2019-11-06 21:26:05,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:26:05" (3/3) ... [2019-11-06 21:26:05,441 INFO L109 eAbstractionObserver]: Analyzing ICFG fermat1.c [2019-11-06 21:26:05,452 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-06 21:26:05,460 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-06 21:26:05,471 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-06 21:26:05,496 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-06 21:26:05,497 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-06 21:26:05,497 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-06 21:26:05,497 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-06 21:26:05,497 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-06 21:26:05,497 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-06 21:26:05,497 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-06 21:26:05,498 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-06 21:26:05,516 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-11-06 21:26:05,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-06 21:26:05,522 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:26:05,523 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:26:05,525 INFO L410 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:26:05,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:26:05,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1029581307, now seen corresponding path program 1 times [2019-11-06 21:26:05,540 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:26:05,541 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931211984] [2019-11-06 21:26:05,541 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:26:05,601 ERROR L268 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-06 21:26:05,603 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [135882986] [2019-11-06 21:26:05,603 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 [2019-11-06 21:26:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:26:05,665 INFO L256 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-06 21:26:05,674 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:26:05,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:26:05,700 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931211984] [2019-11-06 21:26:05,700 INFO L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-06 21:26:05,700 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135882986] [2019-11-06 21:26:05,702 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:26:05,702 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-06 21:26:05,704 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457456776] [2019-11-06 21:26:05,710 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-06 21:26:05,710 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:26:05,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-06 21:26:05,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 21:26:05,729 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2019-11-06 21:26:05,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:26:05,779 INFO L93 Difference]: Finished difference Result 47 states and 75 transitions. [2019-11-06 21:26:05,779 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-06 21:26:05,780 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2019-11-06 21:26:05,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:26:05,791 INFO L225 Difference]: With dead ends: 47 [2019-11-06 21:26:05,791 INFO L226 Difference]: Without dead ends: 21 [2019-11-06 21:26:05,795 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-06 21:26:05,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-11-06 21:26:05,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-11-06 21:26:05,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-11-06 21:26:05,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 26 transitions. [2019-11-06 21:26:05,834 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 26 transitions. Word has length 10 [2019-11-06 21:26:05,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:26:05,834 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 26 transitions. [2019-11-06 21:26:05,835 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-06 21:26:05,835 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2019-11-06 21:26:05,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-06 21:26:05,836 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:26:05,836 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:26:06,037 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:26:06,038 INFO L410 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:26:06,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:26:06,039 INFO L82 PathProgramCache]: Analyzing trace with hash 989691158, now seen corresponding path program 1 times [2019-11-06 21:26:06,039 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:26:06,039 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185256353] [2019-11-06 21:26:06,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:26:06,045 ERROR L268 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-06 21:26:06,045 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [35172323] [2019-11-06 21:26:06,045 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 [2019-11-06 21:26:06,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:26:06,075 WARN L254 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-06 21:26:06,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:26:06,245 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 25 [2019-11-06 21:26:06,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:26:12,332 WARN L838 $PredicateComparison]: unable to prove that (or (= |c___VERIFIER_assert_#in~cond| 1) (and (= |c___VERIFIER_assert_#in~cond| 0) (exists ((v_main_~u~0_BEFORE_CALL_1 Int) (v_main_~A~0_BEFORE_CALL_1 Int)) (let ((.cse1 (div (+ (* v_main_~u~0_BEFORE_CALL_1 (- 1)) 1) (- 2)))) (and (< (let ((.cse0 (+ .cse1 (- 1)))) (* .cse0 .cse0)) v_main_~A~0_BEFORE_CALL_1) (= 0 (mod (+ v_main_~u~0_BEFORE_CALL_1 1) (- 2))) (= (mod v_main_~A~0_BEFORE_CALL_1 2) 1) (not (= (+ (* v_main_~u~0_BEFORE_CALL_1 v_main_~u~0_BEFORE_CALL_1) 1) (+ (* 4 (* .cse1 .cse1)) (* 2 v_main_~u~0_BEFORE_CALL_1))))))))) is different from false [2019-11-06 21:26:17,595 WARN L838 $PredicateComparison]: unable to prove that (or (and (exists ((v_main_~u~0_BEFORE_CALL_1 Int) (v_main_~A~0_BEFORE_CALL_1 Int)) (let ((.cse1 (div (+ (* v_main_~u~0_BEFORE_CALL_1 (- 1)) 1) (- 2)))) (and (< (let ((.cse0 (+ .cse1 (- 1)))) (* .cse0 .cse0)) v_main_~A~0_BEFORE_CALL_1) (= 0 (mod (+ v_main_~u~0_BEFORE_CALL_1 1) (- 2))) (= (mod v_main_~A~0_BEFORE_CALL_1 2) 1) (not (= (+ (* v_main_~u~0_BEFORE_CALL_1 v_main_~u~0_BEFORE_CALL_1) 1) (+ (* 4 (* .cse1 .cse1)) (* 2 v_main_~u~0_BEFORE_CALL_1))))))) (= 0 c___VERIFIER_assert_~cond)) (= 1 c___VERIFIER_assert_~cond)) is different from false [2019-11-06 21:26:23,358 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_main_~u~0_BEFORE_CALL_1 Int) (v_main_~A~0_BEFORE_CALL_1 Int)) (let ((.cse1 (div (+ (* v_main_~u~0_BEFORE_CALL_1 (- 1)) 1) (- 2)))) (and (< (let ((.cse0 (+ .cse1 (- 1)))) (* .cse0 .cse0)) v_main_~A~0_BEFORE_CALL_1) (= 0 (mod (+ v_main_~u~0_BEFORE_CALL_1 1) (- 2))) (= (mod v_main_~A~0_BEFORE_CALL_1 2) 1) (not (= (+ (* v_main_~u~0_BEFORE_CALL_1 v_main_~u~0_BEFORE_CALL_1) 1) (+ (* 4 (* .cse1 .cse1)) (* 2 v_main_~u~0_BEFORE_CALL_1))))))) is different from false [2019-11-06 21:26:25,365 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_main_~u~0_BEFORE_CALL_1 Int) (v_main_~A~0_BEFORE_CALL_1 Int)) (let ((.cse1 (div (+ (* v_main_~u~0_BEFORE_CALL_1 (- 1)) 1) (- 2)))) (and (< (let ((.cse0 (+ .cse1 (- 1)))) (* .cse0 .cse0)) v_main_~A~0_BEFORE_CALL_1) (= 0 (mod (+ v_main_~u~0_BEFORE_CALL_1 1) (- 2))) (= (mod v_main_~A~0_BEFORE_CALL_1 2) 1) (not (= (+ (* v_main_~u~0_BEFORE_CALL_1 v_main_~u~0_BEFORE_CALL_1) 1) (+ (* 4 (* .cse1 .cse1)) (* 2 v_main_~u~0_BEFORE_CALL_1))))))) is different from true [2019-11-06 21:26:25,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:26:25,373 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185256353] [2019-11-06 21:26:25,373 INFO L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-06 21:26:25,373 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35172323] [2019-11-06 21:26:25,374 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-06 21:26:25,374 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-06 21:26:25,374 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559496727] [2019-11-06 21:26:25,376 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-06 21:26:25,377 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:26:25,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-06 21:26:25,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=5, Unknown=4, NotChecked=12, Total=30 [2019-11-06 21:26:25,378 INFO L87 Difference]: Start difference. First operand 21 states and 26 transitions. Second operand 6 states. [2019-11-06 21:26:27,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:26:27,493 INFO L93 Difference]: Finished difference Result 35 states and 46 transitions. [2019-11-06 21:26:27,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-06 21:26:27,494 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-11-06 21:26:27,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:26:27,496 INFO L225 Difference]: With dead ends: 35 [2019-11-06 21:26:27,496 INFO L226 Difference]: Without dead ends: 33 [2019-11-06 21:26:27,498 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=9, Invalid=5, Unknown=4, NotChecked=12, Total=30 [2019-11-06 21:26:27,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-11-06 21:26:27,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 32. [2019-11-06 21:26:27,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-06 21:26:27,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 43 transitions. [2019-11-06 21:26:27,514 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 43 transitions. Word has length 10 [2019-11-06 21:26:27,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:26:27,514 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 43 transitions. [2019-11-06 21:26:27,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-06 21:26:27,514 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 43 transitions. [2019-11-06 21:26:27,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-11-06 21:26:27,515 INFO L402 BasicCegarLoop]: Found error trace [2019-11-06 21:26:27,515 INFO L410 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-06 21:26:27,718 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:26:27,719 INFO L410 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-06 21:26:27,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-06 21:26:27,720 INFO L82 PathProgramCache]: Analyzing trace with hash -732641273, now seen corresponding path program 1 times [2019-11-06 21:26:27,720 INFO L161 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-06 21:26:27,721 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126080561] [2019-11-06 21:26:27,721 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-06 21:26:27,726 ERROR L268 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-06 21:26:27,726 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2003414737] [2019-11-06 21:26:27,726 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-11-06 21:26:27,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-06 21:26:27,754 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 14 conjunts are in the unsatisfiable core Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:26:27,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-06 21:26:27,896 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-06 21:26:27,951 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-06 21:26:27,952 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126080561] [2019-11-06 21:26:27,952 INFO L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-06 21:26:27,952 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2003414737] [2019-11-06 21:26:27,952 INFO L218 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-11-06 21:26:27,953 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2019-11-06 21:26:27,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135362780] [2019-11-06 21:26:27,953 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-06 21:26:27,954 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-06 21:26:27,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-06 21:26:27,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=53, Unknown=1, NotChecked=0, Total=72 [2019-11-06 21:26:27,954 INFO L87 Difference]: Start difference. First operand 32 states and 43 transitions. Second operand 9 states. [2019-11-06 21:26:28,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-06 21:26:28,306 INFO L93 Difference]: Finished difference Result 32 states and 43 transitions. [2019-11-06 21:26:28,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-06 21:26:28,306 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2019-11-06 21:26:28,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-06 21:26:28,307 INFO L225 Difference]: With dead ends: 32 [2019-11-06 21:26:28,307 INFO L226 Difference]: Without dead ends: 0 [2019-11-06 21:26:28,308 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=80, Unknown=1, NotChecked=0, Total=110 [2019-11-06 21:26:28,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-06 21:26:28,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-06 21:26:28,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-06 21:26:28,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-06 21:26:28,310 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2019-11-06 21:26:28,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-06 21:26:28,310 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-06 21:26:28,310 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-06 21:26:28,310 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-06 21:26:28,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-06 21:26:28,514 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-06 21:26:28,519 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-06 21:26:28,659 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-11-06 21:26:28,659 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-11-06 21:26:28,659 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-06 21:26:28,659 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-11-06 21:26:28,659 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-11-06 21:26:28,659 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-06 21:26:28,660 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 14 52) no Hoare annotation was computed. [2019-11-06 21:26:28,660 INFO L439 ceAbstractionStarter]: At program point L28-2(lines 28 48) the Hoare annotation is: (let ((.cse4 (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0))) (.cse1 (* main_~v~0 main_~v~0)) (.cse2 (* 4 main_~A~0)) (.cse3 (* 2 main_~u~0))) (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ .cse1 .cse2 .cse3) .cse4) (= .cse4 (+ .cse1 .cse2 (* 4 main_~r~0) .cse3)))) [2019-11-06 21:26:28,660 INFO L443 ceAbstractionStarter]: For program point L41-1(lines 28 48) no Hoare annotation was computed. [2019-11-06 21:26:28,660 INFO L439 ceAbstractionStarter]: At program point L41-2(lines 28 48) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-11-06 21:26:28,660 INFO L439 ceAbstractionStarter]: At program point L33-2(lines 33 39) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-11-06 21:26:28,661 INFO L439 ceAbstractionStarter]: At program point L29(line 29) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-11-06 21:26:28,661 INFO L443 ceAbstractionStarter]: For program point L29-1(lines 28 48) no Hoare annotation was computed. [2019-11-06 21:26:28,661 INFO L443 ceAbstractionStarter]: For program point L50(line 50) no Hoare annotation was computed. [2019-11-06 21:26:28,661 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 14 52) no Hoare annotation was computed. [2019-11-06 21:26:28,662 INFO L439 ceAbstractionStarter]: At program point L42(line 42) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-11-06 21:26:28,662 INFO L443 ceAbstractionStarter]: For program point L42-1(lines 41 47) no Hoare annotation was computed. [2019-11-06 21:26:28,662 INFO L439 ceAbstractionStarter]: At program point L34(line 34) the Hoare annotation is: (and (exists ((main_~R~0 Int)) (< (let ((.cse0 (+ main_~R~0 (- 1)))) (* .cse0 .cse0)) main_~A~0)) (= (+ (* 2 main_~v~0) (* main_~u~0 main_~u~0)) (+ (* main_~v~0 main_~v~0) (* 4 main_~A~0) (* 4 main_~r~0) (* 2 main_~u~0)))) [2019-11-06 21:26:28,662 INFO L443 ceAbstractionStarter]: For program point L34-1(lines 33 39) no Hoare annotation was computed. [2019-11-06 21:26:28,662 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 14 52) the Hoare annotation is: true [2019-11-06 21:26:28,662 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 6 12) the Hoare annotation is: true [2019-11-06 21:26:28,663 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-06 21:26:28,663 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 6 12) no Hoare annotation was computed. [2019-11-06 21:26:28,663 INFO L443 ceAbstractionStarter]: For program point L8(lines 8 9) no Hoare annotation was computed. [2019-11-06 21:26:28,663 INFO L443 ceAbstractionStarter]: For program point L7(lines 7 10) no Hoare annotation was computed. [2019-11-06 21:26:28,663 INFO L443 ceAbstractionStarter]: For program point L7-2(lines 6 12) no Hoare annotation was computed. [2019-11-06 21:26:28,670 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-11-06 21:26:28,671 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-11-06 21:26:28,677 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-11-06 21:26:28,678 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-11-06 21:26:28,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-11-06 21:26:28,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-11-06 21:26:28,679 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-11-06 21:26:28,680 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-11-06 21:26:28,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:26:28 BoogieIcfgContainer [2019-11-06 21:26:28,682 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-06 21:26:28,684 INFO L168 Benchmark]: Toolchain (without parser) took 23881.86 ms. Allocated memory was 143.7 MB in the beginning and 231.2 MB in the end (delta: 87.6 MB). Free memory was 101.5 MB in the beginning and 194.9 MB in the end (delta: -93.4 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2019-11-06 21:26:28,685 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 143.7 MB. Free memory is still 119.5 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-11-06 21:26:28,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 331.11 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 101.5 MB in the beginning and 179.7 MB in the end (delta: -78.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2019-11-06 21:26:28,687 INFO L168 Benchmark]: Boogie Preprocessor took 45.82 ms. Allocated memory is still 200.8 MB. Free memory was 179.7 MB in the beginning and 177.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-11-06 21:26:28,688 INFO L168 Benchmark]: RCFGBuilder took 252.94 ms. Allocated memory is still 200.8 MB. Free memory was 177.8 MB in the beginning and 164.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2019-11-06 21:26:28,689 INFO L168 Benchmark]: TraceAbstraction took 23247.58 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 164.7 MB in the beginning and 194.9 MB in the end (delta: -30.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2019-11-06 21:26:28,694 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 143.7 MB. Free memory is still 119.5 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 331.11 ms. Allocated memory was 143.7 MB in the beginning and 200.8 MB in the end (delta: 57.1 MB). Free memory was 101.5 MB in the beginning and 179.7 MB in the end (delta: -78.2 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.82 ms. Allocated memory is still 200.8 MB. Free memory was 179.7 MB in the beginning and 177.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 252.94 ms. Allocated memory is still 200.8 MB. Free memory was 177.8 MB in the beginning and 164.7 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23247.58 ms. Allocated memory was 200.8 MB in the beginning and 231.2 MB in the end (delta: 30.4 MB). Free memory was 164.7 MB in the beginning and 194.9 MB in the end (delta: -30.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 28]: Loop Invariant [2019-11-06 21:26:28,717 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-11-06 21:26:28,717 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-11-06 21:26:28,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-11-06 21:26:28,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] Derived loop invariant: (\exists main_~R~0 : int :: (main_~R~0 + -1) * (main_~R~0 + -1) < A) && 2 * v + u * u == v * v + 4 * A + 4 * r + 2 * u - InvariantResult [Line: 33]: Loop Invariant [2019-11-06 21:26:28,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-11-06 21:26:28,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-11-06 21:26:28,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] [2019-11-06 21:26:28,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[main_~R~0,QUANTIFIED] Derived loop invariant: (\exists main_~R~0 : int :: (main_~R~0 + -1) * (main_~R~0 + -1) < A) && 2 * v + u * u == v * v + 4 * A + 4 * r + 2 * u - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. Result: SAFE, OverallTime: 23.1s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 67 SDtfs, 26 SDslu, 114 SDs, 0 SdLazy, 75 SolverSat, 12 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 7.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 21 PreInvPairs, 32 NumberOfFragments, 215 HoareAnnotationTreeSize, 21 FomulaSimplifications, 492 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 19.5s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 33 ConstructedInterpolants, 7 QuantifiedInterpolants, 4458 SizeOfPredicates, 8 NumberOfNonLiveVariables, 95 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 1/2 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...