/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/sumt4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 12:16:55,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 12:16:55,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 12:16:55,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 12:16:55,307 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 12:16:55,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 12:16:55,309 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 12:16:55,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 12:16:55,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 12:16:55,314 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 12:16:55,315 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 12:16:55,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 12:16:55,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 12:16:55,317 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 12:16:55,318 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 12:16:55,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 12:16:55,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 12:16:55,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 12:16:55,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 12:16:55,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 12:16:55,332 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 12:16:55,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 12:16:55,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 12:16:55,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 12:16:55,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 12:16:55,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 12:16:55,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 12:16:55,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 12:16:55,362 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 [2020-07-20 12:16:55,388 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 12:16:55,388 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 12:16:55,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 12:16:55,390 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 12:16:55,390 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 12:16:55,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 12:16:55,390 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 12:16:55,391 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 12:16:55,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 12:16:55,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 12:16:55,391 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 12:16:55,391 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 12:16:55,391 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 12:16:55,392 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 12:16:55,392 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 12:16:55,392 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 12:16:55,392 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 12:16:55,393 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 12:16:55,393 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 12:16:55,393 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 12:16:55,393 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 12:16:55,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 12:16:55,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 12:16:55,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 12:16:55,394 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 12:16:55,394 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 12:16:55,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:16:55,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 12:16:55,395 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 12:16:55,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> NOT_INCREMENTALLY [2020-07-20 12:16:55,695 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 12:16:55,713 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 12:16:55,717 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 12:16:55,718 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 12:16:55,719 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 12:16:55,720 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/sumt4.c [2020-07-20 12:16:55,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4d8939bf/f6b84fd8d32a4ef6af092405fb28c4e3/FLAG2c78753ba [2020-07-20 12:16:56,313 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 12:16:56,313 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/sumt4.c [2020-07-20 12:16:56,322 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4d8939bf/f6b84fd8d32a4ef6af092405fb28c4e3/FLAG2c78753ba [2020-07-20 12:16:56,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4d8939bf/f6b84fd8d32a4ef6af092405fb28c4e3 [2020-07-20 12:16:56,690 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 12:16:56,693 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 12:16:56,694 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 12:16:56,694 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 12:16:56,698 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 12:16:56,699 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:16:56" (1/1) ... [2020-07-20 12:16:56,703 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b14e0a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:16:56, skipping insertion in model container [2020-07-20 12:16:56,703 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:16:56" (1/1) ... [2020-07-20 12:16:56,712 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 12:16:56,733 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 12:16:56,914 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 12:16:56,920 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 12:16:56,941 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 12:16:56,957 INFO L208 MainTranslator]: Completed translation [2020-07-20 12:16:56,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:16:56 WrapperNode [2020-07-20 12:16:56,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 12:16:56,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 12:16:56,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 12:16:56,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 12:16:56,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:16:56" (1/1) ... [2020-07-20 12:16:56,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:16:56" (1/1) ... [2020-07-20 12:16:56,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:16:56" (1/1) ... [2020-07-20 12:16:56,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:16:56" (1/1) ... [2020-07-20 12:16:56,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:16:56" (1/1) ... [2020-07-20 12:16:57,087 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:16:56" (1/1) ... [2020-07-20 12:16:57,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:16:56" (1/1) ... [2020-07-20 12:16:57,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 12:16:57,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 12:16:57,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 12:16:57,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 12:16:57,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:16:56" (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 [2020-07-20 12:16:57,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 12:16:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 12:16:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-20 12:16:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-20 12:16:57,171 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 12:16:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 12:16:57,171 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-20 12:16:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-20 12:16:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-20 12:16:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 12:16:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 12:16:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 12:16:57,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 12:16:57,409 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 12:16:57,410 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 12:16:57,415 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:16:57 BoogieIcfgContainer [2020-07-20 12:16:57,415 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 12:16:57,417 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 12:16:57,417 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 12:16:57,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 12:16:57,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:16:56" (1/3) ... [2020-07-20 12:16:57,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8aad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:16:57, skipping insertion in model container [2020-07-20 12:16:57,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:16:56" (2/3) ... [2020-07-20 12:16:57,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f8aad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:16:57, skipping insertion in model container [2020-07-20 12:16:57,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:16:57" (3/3) ... [2020-07-20 12:16:57,426 INFO L109 eAbstractionObserver]: Analyzing ICFG sumt4.c [2020-07-20 12:16:57,438 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 12:16:57,446 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 12:16:57,465 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 12:16:57,499 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 12:16:57,499 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 12:16:57,500 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 12:16:57,500 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 12:16:57,500 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 12:16:57,501 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 12:16:57,501 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 12:16:57,501 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 12:16:57,531 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-20 12:16:57,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-20 12:16:57,540 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:16:57,542 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:16:57,542 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:16:57,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:16:57,551 INFO L82 PathProgramCache]: Analyzing trace with hash -12471351, now seen corresponding path program 1 times [2020-07-20 12:16:57,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:16:57,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1580041409] [2020-07-20 12:16:57,564 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:16:57,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:16:57,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-20 12:16:57,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:16:57,754 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:16:57,755 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 12:16:57,756 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1580041409] [2020-07-20 12:16:57,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 12:16:57,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 12:16:57,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493531539] [2020-07-20 12:16:57,763 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 12:16:57,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:16:57,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 12:16:57,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 12:16:57,780 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2020-07-20 12:16:57,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:16:57,916 INFO L93 Difference]: Finished difference Result 51 states and 68 transitions. [2020-07-20 12:16:57,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 12:16:57,919 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-20 12:16:57,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:16:57,930 INFO L225 Difference]: With dead ends: 51 [2020-07-20 12:16:57,931 INFO L226 Difference]: Without dead ends: 19 [2020-07-20 12:16:57,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-20 12:16:57,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-20 12:16:57,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-07-20 12:16:57,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-20 12:16:57,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 22 transitions. [2020-07-20 12:16:57,978 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 22 transitions. Word has length 12 [2020-07-20 12:16:57,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:16:57,979 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 22 transitions. [2020-07-20 12:16:57,980 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 12:16:57,980 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 22 transitions. [2020-07-20 12:16:57,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-20 12:16:57,981 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:16:57,981 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:16:58,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:16:58,198 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:16:58,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:16:58,200 INFO L82 PathProgramCache]: Analyzing trace with hash -793409467, now seen corresponding path program 1 times [2020-07-20 12:16:58,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:16:58,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [459376105] [2020-07-20 12:16:58,201 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:16:58,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:16:58,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-20 12:16:58,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:16:58,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:16:58,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 12:16:58,507 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 12:17:00,813 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:17:00,814 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [459376105] [2020-07-20 12:17:00,814 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 12:17:00,815 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2020-07-20 12:17:00,815 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547890233] [2020-07-20 12:17:00,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-20 12:17:00,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:17:00,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-20 12:17:00,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=134, Unknown=1, NotChecked=0, Total=182 [2020-07-20 12:17:00,820 INFO L87 Difference]: Start difference. First operand 19 states and 22 transitions. Second operand 14 states. [2020-07-20 12:17:13,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:17:13,592 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2020-07-20 12:17:13,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 12:17:13,596 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-07-20 12:17:13,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:17:13,597 INFO L225 Difference]: With dead ends: 40 [2020-07-20 12:17:13,598 INFO L226 Difference]: Without dead ends: 26 [2020-07-20 12:17:13,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=51, Invalid=158, Unknown=1, NotChecked=0, Total=210 [2020-07-20 12:17:13,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-20 12:17:13,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-07-20 12:17:13,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-07-20 12:17:13,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 29 transitions. [2020-07-20 12:17:13,610 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 29 transitions. Word has length 15 [2020-07-20 12:17:13,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:17:13,610 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 29 transitions. [2020-07-20 12:17:13,611 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-20 12:17:13,611 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 29 transitions. [2020-07-20 12:17:13,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-20 12:17:13,612 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:17:13,612 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:17:13,813 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:17:13,814 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:17:13,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:17:13,815 INFO L82 PathProgramCache]: Analyzing trace with hash -1087804450, now seen corresponding path program 1 times [2020-07-20 12:17:13,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:17:13,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1181920374] [2020-07-20 12:17:13,817 INFO L95 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 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:17:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:17:13,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 12:17:13,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:17:13,879 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:17:13,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 12:17:13,939 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:17:13,940 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1181920374] [2020-07-20 12:17:13,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 12:17:13,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-20 12:17:13,941 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498494233] [2020-07-20 12:17:13,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 12:17:13,942 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:17:13,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 12:17:13,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-07-20 12:17:13,943 INFO L87 Difference]: Start difference. First operand 26 states and 29 transitions. Second operand 8 states. [2020-07-20 12:17:16,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:17:16,271 INFO L93 Difference]: Finished difference Result 61 states and 82 transitions. [2020-07-20 12:17:16,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 12:17:16,271 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-07-20 12:17:16,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:17:16,274 INFO L225 Difference]: With dead ends: 61 [2020-07-20 12:17:16,274 INFO L226 Difference]: Without dead ends: 51 [2020-07-20 12:17:16,275 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-07-20 12:17:16,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-07-20 12:17:16,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 45. [2020-07-20 12:17:16,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-07-20 12:17:16,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2020-07-20 12:17:16,287 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 23 [2020-07-20 12:17:16,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:17:16,287 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2020-07-20 12:17:16,287 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 12:17:16,287 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2020-07-20 12:17:16,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-20 12:17:16,288 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:17:16,288 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:17:16,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:17:16,503 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:17:16,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:17:16,504 INFO L82 PathProgramCache]: Analyzing trace with hash -563580765, now seen corresponding path program 1 times [2020-07-20 12:17:16,504 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:17:16,505 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1162297715] [2020-07-20 12:17:16,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:17:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:17:16,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 28 conjunts are in the unsatisfiable core [2020-07-20 12:17:16,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:17:16,886 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:17:16,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 12:17:16,923 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 12:17:21,297 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_main_~l~0 1)) (.cse0 (mod c_main_~l~0 4294967296)) (.cse1 (= 0 (mod (mod c_main_~l~0 4294967296) 3)))) (or (and (or (<= 0 .cse0) .cse1) (= 0 (mod (mod (mod c_main_~l~0 4294967296) 3) 4294967296))) (< (mod .cse2 4294967296) (mod c_main_~n~0 4294967296)) (= (mod .cse2 4294967296) (mod (+ c_main_~v4~0 c_main_~i~0 c_main_~j~0 c_main_~k~0 1) 4294967296)) (and (< .cse0 0) (= 0 (mod (+ (mod (mod c_main_~l~0 4294967296) 3) 4294967293) 4294967296)) (not .cse1)))) is different from true [2020-07-20 12:17:23,401 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 (mod c_main_~l~0 4294967296))) (let ((.cse0 (= 0 (mod (mod (mod c_main_~l~0 4294967296) 3) 4294967296))) (.cse4 (= 0 (mod (+ (mod (mod c_main_~l~0 4294967296) 3) 4294967293) 4294967296))) (.cse6 (< .cse7 0)) (.cse5 (<= 0 .cse7)) (.cse2 (= 0 (mod (mod c_main_~l~0 4294967296) 3))) (.cse1 (forall ((main_~n~0 Int)) (or (< (mod (+ c_main_~l~0 1) 4294967296) (mod main_~n~0 4294967296)) (<= (mod main_~n~0 4294967296) (mod c_main_~l~0 4294967296))))) (.cse3 (= (mod (+ c_main_~l~0 1) 4294967296) (mod (+ c_main_~v4~0 c_main_~i~0 c_main_~j~0 c_main_~k~0 1) 4294967296)))) (and (or .cse0 .cse1 (not .cse2) .cse3) (or .cse4 .cse5 .cse2 .cse1 .cse3) (or .cse6 .cse0 .cse1 .cse3) (or .cse0 .cse4 .cse1 .cse3) (or .cse6 .cse5 .cse2 .cse1 .cse3)))) is different from false [2020-07-20 12:17:38,120 WARN L193 SmtUtils]: Spent 8.36 s on a formula simplification. DAG size of input: 87 DAG size of output: 37 [2020-07-20 12:17:48,566 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 37 [2020-07-20 12:17:58,998 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 36 [2020-07-20 12:18:19,789 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification that was a NOOP. DAG size: 36 [2020-07-20 12:18:19,808 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 6 refuted. 2 times theorem prover too weak. 0 trivial. 6 not checked. [2020-07-20 12:18:19,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1162297715] [2020-07-20 12:18:19,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 12:18:19,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 14] total 23 [2020-07-20 12:18:19,810 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220159206] [2020-07-20 12:18:19,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-20 12:18:19,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:18:19,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-20 12:18:19,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=316, Unknown=21, NotChecked=78, Total=506 [2020-07-20 12:18:19,812 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand 23 states. [2020-07-20 12:19:09,906 WARN L193 SmtUtils]: Spent 33.11 s on a formula simplification that was a NOOP. DAG size: 73 [2020-07-20 12:20:48,764 WARN L193 SmtUtils]: Spent 1.03 m on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2020-07-20 12:21:45,807 WARN L193 SmtUtils]: Spent 33.81 s on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-07-20 12:21:54,240 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_main_~l~0 1)) (.cse3 (mod c_main_~n~0 4294967296))) (and (let ((.cse0 (mod c_main_~l~0 4294967296)) (.cse1 (= 0 (mod (mod c_main_~l~0 4294967296) 3)))) (or (and (or (<= 0 .cse0) .cse1) (= 0 (mod (mod (mod c_main_~l~0 4294967296) 3) 4294967296))) (< (mod .cse2 4294967296) .cse3) (= (mod .cse2 4294967296) (mod (+ c_main_~v4~0 c_main_~i~0 c_main_~j~0 c_main_~k~0 1) 4294967296)) (and (< .cse0 0) (= 0 (mod (+ (mod (mod c_main_~l~0 4294967296) 3) 4294967293) 4294967296)) (not .cse1)))) (or (= (mod (+ c_main_~v4~0 c_main_~i~0 c_main_~j~0 c_main_~k~0 2) 4294967296) (mod (+ c_main_~l~0 2) 4294967296)) (= 0 (mod (mod (mod .cse2 4294967296) 3) 4294967296)) (forall ((v_prenex_3 Int)) (or (<= (mod v_prenex_3 4294967296) (mod (+ c_main_~l~0 1) 4294967296)) (< (mod (+ c_main_~l~0 2) 4294967296) (mod v_prenex_3 4294967296))))) (or (= (mod c_main_~l~0 4294967296) (mod (+ c_main_~v4~0 c_main_~i~0 c_main_~j~0 c_main_~k~0) 4294967296)) (< (mod c_main_~l~0 4294967296) .cse3)))) is different from false [2020-07-20 12:21:56,407 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (+ c_main_~l~0 1))) (and (let ((.cse0 (mod c_main_~l~0 4294967296)) (.cse1 (= 0 (mod (mod c_main_~l~0 4294967296) 3)))) (or (and (or (<= 0 .cse0) .cse1) (= 0 (mod (mod (mod c_main_~l~0 4294967296) 3) 4294967296))) (< (mod .cse2 4294967296) (mod c_main_~n~0 4294967296)) (= (mod .cse2 4294967296) (mod (+ c_main_~v4~0 c_main_~i~0 c_main_~j~0 c_main_~k~0 1) 4294967296)) (and (< .cse0 0) (= 0 (mod (+ (mod (mod c_main_~l~0 4294967296) 3) 4294967293) 4294967296)) (not .cse1)))) (or (= (mod (+ c_main_~v4~0 c_main_~i~0 c_main_~j~0 c_main_~k~0 2) 4294967296) (mod (+ c_main_~l~0 2) 4294967296)) (= 0 (mod (mod (mod .cse2 4294967296) 3) 4294967296)) (forall ((v_prenex_3 Int)) (or (<= (mod v_prenex_3 4294967296) (mod (+ c_main_~l~0 1) 4294967296)) (< (mod (+ c_main_~l~0 2) 4294967296) (mod v_prenex_3 4294967296))))))) is different from false [2020-07-20 12:22:13,457 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification that was a NOOP. DAG size: 51 [2020-07-20 12:22:47,444 WARN L193 SmtUtils]: Spent 10.65 s on a formula simplification that was a NOOP. DAG size: 51 [2020-07-20 12:23:23,707 WARN L193 SmtUtils]: Spent 8.66 s on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2020-07-20 12:24:03,993 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2020-07-20 12:24:58,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:24:58,998 INFO L93 Difference]: Finished difference Result 92 states and 125 transitions. [2020-07-20 12:24:59,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-20 12:24:59,109 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 25 [2020-07-20 12:24:59,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:24:59,111 INFO L225 Difference]: With dead ends: 92 [2020-07-20 12:24:59,111 INFO L226 Difference]: Without dead ends: 65 [2020-07-20 12:24:59,112 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 25 SyntacticMatches, 9 SemanticMatches, 32 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 371.9s TimeCoverageRelationStatistics Valid=177, Invalid=620, Unknown=89, NotChecked=236, Total=1122 [2020-07-20 12:24:59,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-07-20 12:24:59,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-07-20 12:24:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-07-20 12:24:59,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 81 transitions. [2020-07-20 12:24:59,133 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 81 transitions. Word has length 25 [2020-07-20 12:24:59,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:24:59,134 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 81 transitions. [2020-07-20 12:24:59,134 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-20 12:24:59,136 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 81 transitions. [2020-07-20 12:24:59,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-20 12:24:59,137 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 12:24:59,139 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 12:24:59,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:24:59,351 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 12:24:59,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 12:24:59,351 INFO L82 PathProgramCache]: Analyzing trace with hash 45927801, now seen corresponding path program 1 times [2020-07-20 12:24:59,352 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 12:24:59,352 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347772374] [2020-07-20 12:24:59,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:24:59,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 12:24:59,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 35 conjunts are in the unsatisfiable core [2020-07-20 12:24:59,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 12:24:59,759 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:24:59,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 12:24:59,802 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-20 12:25:29,012 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 12:25:29,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347772374] [2020-07-20 12:25:29,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 12:25:29,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 30 [2020-07-20 12:25:29,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742983365] [2020-07-20 12:25:29,014 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-07-20 12:25:29,014 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 12:25:29,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-07-20 12:25:29,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=707, Unknown=13, NotChecked=0, Total=870 [2020-07-20 12:25:29,016 INFO L87 Difference]: Start difference. First operand 65 states and 81 transitions. Second operand 30 states. [2020-07-20 12:25:48,854 WARN L193 SmtUtils]: Spent 14.13 s on a formula simplification. DAG size of input: 91 DAG size of output: 14 [2020-07-20 12:26:38,510 WARN L193 SmtUtils]: Spent 38.76 s on a formula simplification. DAG size of input: 90 DAG size of output: 37 [2020-07-20 12:27:20,084 WARN L193 SmtUtils]: Spent 38.15 s on a formula simplification. DAG size of input: 103 DAG size of output: 36 [2020-07-20 12:28:24,694 WARN L193 SmtUtils]: Spent 41.93 s on a formula simplification. DAG size of input: 107 DAG size of output: 37 [2020-07-20 12:28:43,177 WARN L193 SmtUtils]: Spent 10.94 s on a formula simplification. DAG size of input: 74 DAG size of output: 14 [2020-07-20 12:28:51,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 12:28:51,688 INFO L93 Difference]: Finished difference Result 91 states and 120 transitions. [2020-07-20 12:28:51,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-20 12:28:51,689 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 32 [2020-07-20 12:28:51,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 12:28:51,695 INFO L225 Difference]: With dead ends: 91 [2020-07-20 12:28:51,695 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 12:28:51,696 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 33 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 203.7s TimeCoverageRelationStatistics Valid=232, Invalid=1005, Unknown=23, NotChecked=0, Total=1260 [2020-07-20 12:28:51,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 12:28:51,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 12:28:51,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 12:28:51,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 12:28:51,697 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-07-20 12:28:51,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 12:28:51,697 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 12:28:51,697 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-07-20 12:28:51,698 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 12:28:51,698 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 12:28:51,898 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 12:28:51,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 12:29:00,608 WARN L193 SmtUtils]: Spent 8.56 s on a formula simplification. DAG size of input: 141 DAG size of output: 22 [2020-07-20 12:29:34,645 WARN L193 SmtUtils]: Spent 34.03 s on a formula simplification. DAG size of input: 98 DAG size of output: 31 [2020-07-20 12:29:34,647 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 12:29:34,648 INFO L271 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2020-07-20 12:29:34,648 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 12:29:34,648 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 12:29:34,648 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-20 12:29:34,648 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 12:29:34,648 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 12:29:34,648 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-20 12:29:34,648 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-20 12:29:34,648 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-20 12:29:34,648 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-20 12:29:34,649 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 12:29:34,649 INFO L268 CegarLoopResult]: For program point L25(lines 25 28) no Hoare annotation was computed. [2020-07-20 12:29:34,649 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 14 33) no Hoare annotation was computed. [2020-07-20 12:29:34,649 INFO L268 CegarLoopResult]: For program point L23(lines 23 28) no Hoare annotation was computed. [2020-07-20 12:29:34,649 INFO L268 CegarLoopResult]: For program point L25-2(lines 21 28) no Hoare annotation was computed. [2020-07-20 12:29:34,649 INFO L268 CegarLoopResult]: For program point L21(lines 21 28) no Hoare annotation was computed. [2020-07-20 12:29:34,649 INFO L264 CegarLoopResult]: At program point L19-2(lines 19 30) the Hoare annotation is: (and (= (mod (+ main_~l~0 2) 4294967296) (mod (+ main_~v4~0 main_~i~0 main_~j~0 main_~k~0 2) 4294967296)) (= (mod (+ main_~v4~0 main_~i~0 main_~j~0 main_~k~0 4) 4294967296) (mod (+ main_~l~0 4) 4294967296))) [2020-07-20 12:29:34,649 INFO L264 CegarLoopResult]: At program point L19-3(lines 19 30) the Hoare annotation is: (and (or (= 0 (mod (mod (mod (+ main_~l~0 1) 4294967296) 3) 4294967296)) (= (mod (+ main_~v4~0 main_~i~0 main_~j~0 main_~k~0 2) 4294967296) (mod (+ main_~l~0 2) 4294967296))) (= (mod main_~l~0 4294967296) (mod (+ main_~v4~0 main_~i~0 main_~j~0 main_~k~0) 4294967296))) [2020-07-20 12:29:34,650 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 14 33) no Hoare annotation was computed. [2020-07-20 12:29:34,650 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 14 33) the Hoare annotation is: true [2020-07-20 12:29:34,650 INFO L268 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-07-20 12:29:34,650 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-20 12:29:34,650 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-07-20 12:29:34,650 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-20 12:29:34,650 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-20 12:29:34,650 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-07-20 12:29:34,651 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-20 12:29:34,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 12:29:34 BoogieIcfgContainer [2020-07-20 12:29:34,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 12:29:34,666 INFO L168 Benchmark]: Toolchain (without parser) took 757974.89 ms. Allocated memory was 144.2 MB in the beginning and 256.9 MB in the end (delta: 112.7 MB). Free memory was 101.9 MB in the beginning and 206.9 MB in the end (delta: -105.0 MB). Peak memory consumption was 7.8 MB. Max. memory is 7.1 GB. [2020-07-20 12:29:34,667 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 12:29:34,667 INFO L168 Benchmark]: CACSL2BoogieTranslator took 264.32 ms. Allocated memory is still 144.2 MB. Free memory was 101.5 MB in the beginning and 91.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-20 12:29:34,668 INFO L168 Benchmark]: Boogie Preprocessor took 138.27 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 91.8 MB in the beginning and 180.2 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2020-07-20 12:29:34,669 INFO L168 Benchmark]: RCFGBuilder took 317.68 ms. Allocated memory is still 201.9 MB. Free memory was 180.2 MB in the beginning and 166.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2020-07-20 12:29:34,670 INFO L168 Benchmark]: TraceAbstraction took 757247.65 ms. Allocated memory was 201.9 MB in the beginning and 256.9 MB in the end (delta: 55.1 MB). Free memory was 165.8 MB in the beginning and 206.9 MB in the end (delta: -41.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2020-07-20 12:29:34,680 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.2 MB. Free memory is still 120.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 264.32 ms. Allocated memory is still 144.2 MB. Free memory was 101.5 MB in the beginning and 91.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.27 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 91.8 MB in the beginning and 180.2 MB in the end (delta: -88.5 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 317.68 ms. Allocated memory is still 201.9 MB. Free memory was 180.2 MB in the beginning and 166.7 MB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 757247.65 ms. Allocated memory was 201.9 MB in the beginning and 256.9 MB in the end (delta: 55.1 MB). Free memory was 165.8 MB in the beginning and 206.9 MB in the end (delta: -41.1 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 19]: Loop Invariant Derived loop invariant: (l + 2) % 4294967296 == (v4 + i + j + k + 2) % 4294967296 && (v4 + i + j + k + 4) % 4294967296 == (l + 4) % 4294967296 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 714.4s, OverallIterations: 5, TraceHistogramMax: 5, AutomataDifference: 617.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 42.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 174 SDslu, 373 SDs, 0 SdLazy, 799 SolverSat, 119 SolverUnsat, 63 SolverUnknown, 0 SolverNotchecked, 128.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 226 GetRequests, 120 SyntacticMatches, 13 SemanticMatches, 93 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 578.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65occurred in iteration=4, 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, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 19 PreInvPairs, 37 NumberOfFragments, 72 HoareAnnotationTreeSize, 19 FomulaSimplifications, 183 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 439 FormulaSimplificationTreeSizeReductionInter, 42.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 95.6s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 193 ConstructedInterpolants, 31 QuantifiedInterpolants, 72149 SizeOfPredicates, 17 NumberOfNonLiveVariables, 287 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 10/132 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...