/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/loops/matrix-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 16:39:41,585 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 16:39:41,588 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 16:39:41,642 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 16:39:41,642 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 16:39:41,646 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 16:39:41,650 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 16:39:41,656 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 16:39:41,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 16:39:41,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 16:39:41,670 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 16:39:41,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 16:39:41,672 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 16:39:41,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 16:39:41,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 16:39:41,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 16:39:41,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 16:39:41,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 16:39:41,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 16:39:41,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 16:39:41,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 16:39:41,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 16:39:41,706 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 16:39:41,707 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 16:39:41,710 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-06 16:39:41,720 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 16:39:41,721 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 16:39:41,722 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 16:39:41,723 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 16:39:41,750 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 16:39:41,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 16:39:41,752 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 16:39:41,753 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 16:39:41,753 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 16:39:41,753 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 16:39:41,753 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 16:39:41,754 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 16:39:41,754 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 16:39:41,754 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 16:39:41,754 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 16:39:41,754 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 16:39:41,755 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 16:39:41,755 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 16:39:41,755 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 16:39:41,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 16:39:41,755 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 16:39:41,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:39:41,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 16:39:41,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 16:39:41,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 16:39:41,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 16:39:41,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 16:39:41,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 16:39:41,759 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 16:39:41,760 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 16:39:42,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 16:39:42,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 16:39:42,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 16:39:42,212 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 16:39:42,212 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 16:39:42,213 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/matrix-1.c [2021-01-06 16:39:42,306 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/35e4982cb/9bd446884a1a470989a600acd7dfbe73/FLAG38f95fb08 [2021-01-06 16:39:42,978 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 16:39:42,979 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loops/matrix-1.c [2021-01-06 16:39:42,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/35e4982cb/9bd446884a1a470989a600acd7dfbe73/FLAG38f95fb08 [2021-01-06 16:39:43,347 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/35e4982cb/9bd446884a1a470989a600acd7dfbe73 [2021-01-06 16:39:43,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 16:39:43,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 16:39:43,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 16:39:43,355 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 16:39:43,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 16:39:43,364 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:39:43" (1/1) ... [2021-01-06 16:39:43,366 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc866ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:39:43, skipping insertion in model container [2021-01-06 16:39:43,366 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:39:43" (1/1) ... [2021-01-06 16:39:43,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 16:39:43,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-06 16:39:43,563 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loops/matrix-1.c[320,333] left hand side expression in assignment: lhs: VariableLHS[~maior~0,] left hand side expression in assignment: lhs: VariableLHS[~j~0,] left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: lhs: ArrayLHS[ArrayLHS[VariableLHS[~matriz~0,],[BinaryExpression[ARITHMOD,IdentifierExpression[~j~0,],IntegerLiteral[4294967296]]]],[BinaryExpression[ARITHMOD,IdentifierExpression[~k~0,],IntegerLiteral[4294967296]]]] left hand side expression in assignment: lhs: VariableLHS[~maior~0,] [2021-01-06 16:39:43,587 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:39:43,596 INFO L203 MainTranslator]: Completed pre-run [2021-01-06 16:39:43,610 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/loops/matrix-1.c[320,333] left hand side expression in assignment: lhs: VariableLHS[~maior~0,] left hand side expression in assignment: lhs: VariableLHS[~j~0,] left hand side expression in assignment: lhs: VariableLHS[~k~0,] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#matriz~0,],base],BinaryExpression[ARITHPLUS,BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#matriz~0,],offset],BinaryExpression[ARITHMUL,BinaryExpression[ARITHMOD,IdentifierExpression[~j~0,],IntegerLiteral[4294967296]],BinaryExpression[ARITHMUL,IntegerLiteral[4],BinaryExpression[ARITHMOD,IdentifierExpression[~N_LIN~0,],IntegerLiteral[4294967296]]]]],BinaryExpression[ARITHMUL,IntegerLiteral[4],BinaryExpression[ARITHMOD,IdentifierExpression[~k~0,],IntegerLiteral[4294967296]]]]]] left hand side expression in assignment: lhs: VariableLHS[~maior~0,] [2021-01-06 16:39:43,619 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:39:43,637 INFO L208 MainTranslator]: Completed translation [2021-01-06 16:39:43,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:39:43 WrapperNode [2021-01-06 16:39:43,638 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 16:39:43,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 16:39:43,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 16:39:43,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 16:39:43,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:39:43" (1/1) ... [2021-01-06 16:39:43,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:39:43" (1/1) ... [2021-01-06 16:39:43,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 16:39:43,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 16:39:43,677 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 16:39:43,677 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 16:39:43,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:39:43" (1/1) ... [2021-01-06 16:39:43,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:39:43" (1/1) ... [2021-01-06 16:39:43,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:39:43" (1/1) ... [2021-01-06 16:39:43,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:39:43" (1/1) ... [2021-01-06 16:39:43,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:39:43" (1/1) ... [2021-01-06 16:39:43,701 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:39:43" (1/1) ... [2021-01-06 16:39:43,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:39:43" (1/1) ... [2021-01-06 16:39:43,705 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 16:39:43,706 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 16:39:43,706 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 16:39:43,706 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 16:39:43,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:39:43" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 16:39:43,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 16:39:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 16:39:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 16:39:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 16:39:43,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 16:39:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 16:39:43,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 16:39:44,066 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 16:39:44,066 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 16:39:44,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:39:44 BoogieIcfgContainer [2021-01-06 16:39:44,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 16:39:44,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 16:39:44,070 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 16:39:44,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 16:39:44,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 04:39:43" (1/3) ... [2021-01-06 16:39:44,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62202035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:39:44, skipping insertion in model container [2021-01-06 16:39:44,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:39:43" (2/3) ... [2021-01-06 16:39:44,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62202035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:39:44, skipping insertion in model container [2021-01-06 16:39:44,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:39:44" (3/3) ... [2021-01-06 16:39:44,078 INFO L111 eAbstractionObserver]: Analyzing ICFG matrix-1.c [2021-01-06 16:39:44,085 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 16:39:44,090 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 16:39:44,111 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 16:39:44,168 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 16:39:44,168 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 16:39:44,168 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 16:39:44,169 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 16:39:44,169 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 16:39:44,169 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 16:39:44,169 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 16:39:44,169 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 16:39:44,208 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2021-01-06 16:39:44,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-06 16:39:44,214 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:39:44,215 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-06 16:39:44,215 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:39:44,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:39:44,221 INFO L82 PathProgramCache]: Analyzing trace with hash 889621918, now seen corresponding path program 1 times [2021-01-06 16:39:44,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:39:44,232 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474098122] [2021-01-06 16:39:44,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:39:44,328 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 16:39:44,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1610659670] [2021-01-06 16:39:44,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 16:39:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:39:44,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-06 16:39:44,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 16:39:44,507 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:39:44,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474098122] [2021-01-06 16:39:44,508 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 16:39:44,508 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610659670] [2021-01-06 16:39:44,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:39:44,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 16:39:44,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704384827] [2021-01-06 16:39:44,517 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 16:39:44,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:39:44,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 16:39:44,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 16:39:44,561 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 3 states. [2021-01-06 16:39:44,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:39:44,648 INFO L93 Difference]: Finished difference Result 33 states and 48 transitions. [2021-01-06 16:39:44,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 16:39:44,656 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-01-06 16:39:44,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:39:44,675 INFO L225 Difference]: With dead ends: 33 [2021-01-06 16:39:44,675 INFO L226 Difference]: Without dead ends: 16 [2021-01-06 16:39:44,681 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 16:39:44,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-01-06 16:39:44,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 12. [2021-01-06 16:39:44,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-01-06 16:39:44,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2021-01-06 16:39:44,734 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 6 [2021-01-06 16:39:44,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:39:44,735 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-01-06 16:39:44,735 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 16:39:44,737 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-01-06 16:39:44,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-01-06 16:39:44,738 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:39:44,739 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:39:44,952 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-01-06 16:39:44,953 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:39:44,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:39:44,955 INFO L82 PathProgramCache]: Analyzing trace with hash -235638193, now seen corresponding path program 1 times [2021-01-06 16:39:44,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:39:44,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695188791] [2021-01-06 16:39:44,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:39:44,994 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 16:39:44,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [807861617] [2021-01-06 16:39:44,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-06 16:39:45,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:39:45,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjunts are in the unsatisfiable core [2021-01-06 16:39:45,101 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 16:39:45,178 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:39:45,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695188791] [2021-01-06 16:39:45,179 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 16:39:45,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807861617] [2021-01-06 16:39:45,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:39:45,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 16:39:45,182 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392700569] [2021-01-06 16:39:45,185 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 16:39:45,185 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:39:45,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 16:39:45,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 16:39:45,187 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 4 states. [2021-01-06 16:39:45,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:39:45,269 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2021-01-06 16:39:45,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 16:39:45,270 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2021-01-06 16:39:45,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:39:45,271 INFO L225 Difference]: With dead ends: 28 [2021-01-06 16:39:45,271 INFO L226 Difference]: Without dead ends: 19 [2021-01-06 16:39:45,274 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-06 16:39:45,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-01-06 16:39:45,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 13. [2021-01-06 16:39:45,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-01-06 16:39:45,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-01-06 16:39:45,279 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 9 [2021-01-06 16:39:45,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:39:45,279 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-01-06 16:39:45,279 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 16:39:45,279 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-01-06 16:39:45,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 16:39:45,280 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:39:45,280 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:39:45,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 16:39:45,495 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:39:45,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:39:45,497 INFO L82 PathProgramCache]: Analyzing trace with hash -589728809, now seen corresponding path program 1 times [2021-01-06 16:39:45,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:39:45,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387599320] [2021-01-06 16:39:45,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:39:45,510 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 16:39:45,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [883733633] [2021-01-06 16:39:45,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 16:39:45,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:39:45,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 14 conjunts are in the unsatisfiable core [2021-01-06 16:39:45,574 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 16:39:45,669 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 22 [2021-01-06 16:39:45,672 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 16:39:45,694 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 16:39:45,706 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2021-01-06 16:39:45,707 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:40, output treesize:14 [2021-01-06 16:39:45,914 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 16:39:45,935 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 16:39:45,950 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 16:39:45,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:39:45,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387599320] [2021-01-06 16:39:45,978 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 16:39:45,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883733633] [2021-01-06 16:39:45,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 16:39:45,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-01-06 16:39:45,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954777578] [2021-01-06 16:39:45,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 16:39:45,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:39:45,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 16:39:45,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-01-06 16:39:45,988 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 6 states. [2021-01-06 16:39:46,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:39:46,179 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2021-01-06 16:39:46,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-01-06 16:39:46,180 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2021-01-06 16:39:46,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:39:46,181 INFO L225 Difference]: With dead ends: 27 [2021-01-06 16:39:46,182 INFO L226 Difference]: Without dead ends: 23 [2021-01-06 16:39:46,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-01-06 16:39:46,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-01-06 16:39:46,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2021-01-06 16:39:46,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-01-06 16:39:46,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2021-01-06 16:39:46,189 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 12 [2021-01-06 16:39:46,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:39:46,190 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2021-01-06 16:39:46,190 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 16:39:46,190 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2021-01-06 16:39:46,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-01-06 16:39:46,191 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:39:46,191 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:39:46,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 16:39:46,407 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:39:46,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:39:46,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1399075435, now seen corresponding path program 1 times [2021-01-06 16:39:46,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:39:46,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868610822] [2021-01-06 16:39:46,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:39:46,425 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 16:39:46,426 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1642014250] [2021-01-06 16:39:46,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 16:39:46,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:39:46,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 15 conjunts are in the unsatisfiable core [2021-01-06 16:39:46,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 16:39:46,579 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2021-01-06 16:39:46,581 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-06 16:39:46,593 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-06 16:39:46,601 INFO L547 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-01-06 16:39:46,601 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:37, output treesize:20 [2021-01-06 16:39:46,757 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 16:39:46,765 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-01-06 16:39:46,771 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2021-01-06 16:39:46,794 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:39:46,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868610822] [2021-01-06 16:39:46,794 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 16:39:46,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1642014250] [2021-01-06 16:39:46,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 16:39:46,797 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2021-01-06 16:39:46,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252504691] [2021-01-06 16:39:46,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-06 16:39:46,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:39:46,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-06 16:39:46,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-06 16:39:46,801 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand 6 states. [2021-01-06 16:39:47,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:39:47,032 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2021-01-06 16:39:47,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-06 16:39:47,033 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2021-01-06 16:39:47,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:39:47,034 INFO L225 Difference]: With dead ends: 30 [2021-01-06 16:39:47,034 INFO L226 Difference]: Without dead ends: 26 [2021-01-06 16:39:47,035 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-01-06 16:39:47,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-01-06 16:39:47,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 19. [2021-01-06 16:39:47,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-01-06 16:39:47,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 24 transitions. [2021-01-06 16:39:47,045 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 24 transitions. Word has length 12 [2021-01-06 16:39:47,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:39:47,046 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 24 transitions. [2021-01-06 16:39:47,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-01-06 16:39:47,046 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2021-01-06 16:39:47,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-06 16:39:47,047 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:39:47,047 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-01-06 16:39:47,263 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 16:39:47,264 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:39:47,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:39:47,266 INFO L82 PathProgramCache]: Analyzing trace with hash 2141915984, now seen corresponding path program 2 times [2021-01-06 16:39:47,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:39:47,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341750037] [2021-01-06 16:39:47,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:39:47,277 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-01-06 16:39:47,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [755923702] [2021-01-06 16:39:47,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 16:39:47,338 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-01-06 16:39:47,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-06 16:39:47,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 7 conjunts are in the unsatisfiable core [2021-01-06 16:39:47,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-06 16:39:47,383 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-01-06 16:39:47,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341750037] [2021-01-06 16:39:47,384 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-01-06 16:39:47,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755923702] [2021-01-06 16:39:47,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-01-06 16:39:47,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2021-01-06 16:39:47,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294292438] [2021-01-06 16:39:47,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 16:39:47,393 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:39:47,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 16:39:47,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 16:39:47,398 INFO L87 Difference]: Start difference. First operand 19 states and 24 transitions. Second operand 4 states. [2021-01-06 16:39:47,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:39:47,422 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2021-01-06 16:39:47,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 16:39:47,422 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2021-01-06 16:39:47,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:39:47,423 INFO L225 Difference]: With dead ends: 21 [2021-01-06 16:39:47,423 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 16:39:47,425 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 16:39:47,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 16:39:47,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 16:39:47,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 16:39:47,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 16:39:47,427 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2021-01-06 16:39:47,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:39:47,428 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 16:39:47,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 16:39:47,429 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 16:39:47,429 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 16:39:47,642 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-06 16:39:47,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-01-06 16:39:47,817 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-01-06 16:39:47,817 INFO L189 CegarLoopUtils]: For program point L21-2(lines 21 28) no Hoare annotation was computed. [2021-01-06 16:39:47,818 INFO L185 CegarLoopUtils]: At program point L21-3(lines 21 28) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start_main_~N_COL~0))) (or (and .cse0 (= 1 ULTIMATE.start_main_~N_LIN~0) (= ULTIMATE.start_main_~j~0 0)) (and (exists ((aux_mod_ULTIMATE.start_main_~k~0_41 Int)) (and (<= (select (select |#memory_int| |ULTIMATE.start_main_~#matriz~0.base|) (+ |ULTIMATE.start_main_~#matriz~0.offset| (* (mod aux_mod_ULTIMATE.start_main_~k~0_41 4294967296) 4))) ULTIMATE.start_main_~maior~0) (< aux_mod_ULTIMATE.start_main_~k~0_41 1) (<= 0 aux_mod_ULTIMATE.start_main_~k~0_41))) .cse0 (= ULTIMATE.start_main_~j~0 1)))) [2021-01-06 16:39:47,818 INFO L189 CegarLoopUtils]: For program point L21-4(lines 21 28) no Hoare annotation was computed. [2021-01-06 16:39:47,818 INFO L189 CegarLoopUtils]: For program point L7(line 7) no Hoare annotation was computed. [2021-01-06 16:39:47,818 INFO L192 CegarLoopUtils]: At program point L32(lines 13 33) the Hoare annotation is: true [2021-01-06 16:39:47,819 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2021-01-06 16:39:47,819 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-01-06 16:39:47,819 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-01-06 16:39:47,819 INFO L189 CegarLoopUtils]: For program point L26(lines 26 27) no Hoare annotation was computed. [2021-01-06 16:39:47,819 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2021-01-06 16:39:47,819 INFO L189 CegarLoopUtils]: For program point L22-2(lines 22 28) no Hoare annotation was computed. [2021-01-06 16:39:47,820 INFO L185 CegarLoopUtils]: At program point L22-3(lines 22 28) the Hoare annotation is: (let ((.cse0 (= 1 ULTIMATE.start_main_~N_COL~0)) (.cse1 (= 1 ULTIMATE.start_main_~N_LIN~0)) (.cse2 (= ULTIMATE.start_main_~j~0 0))) (or (and (= ULTIMATE.start_main_~k~0 0) .cse0 .cse1 .cse2) (and (exists ((aux_mod_ULTIMATE.start_main_~k~0_41 Int)) (and (<= (select (select |#memory_int| |ULTIMATE.start_main_~#matriz~0.base|) (+ |ULTIMATE.start_main_~#matriz~0.offset| (* (mod aux_mod_ULTIMATE.start_main_~k~0_41 4294967296) 4))) ULTIMATE.start_main_~maior~0) (< aux_mod_ULTIMATE.start_main_~k~0_41 1) (<= 0 aux_mod_ULTIMATE.start_main_~k~0_41))) .cse0 .cse1 .cse2))) [2021-01-06 16:39:47,820 INFO L189 CegarLoopUtils]: For program point L6(lines 6 8) no Hoare annotation was computed. [2021-01-06 16:39:47,820 INFO L192 CegarLoopUtils]: At program point L6-2(lines 5 10) the Hoare annotation is: true [2021-01-06 16:39:47,831 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,832 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,832 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,838 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,839 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,839 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,841 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,841 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,841 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,843 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,843 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,843 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 04:39:47 BoogieIcfgContainer [2021-01-06 16:39:47,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 16:39:47,847 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 16:39:47,847 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 16:39:47,847 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 16:39:47,848 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:39:44" (3/4) ... [2021-01-06 16:39:47,852 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 16:39:47,864 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-01-06 16:39:47,864 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-01-06 16:39:47,865 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 16:39:47,865 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 16:39:47,895 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1 == N_COL && 1 == N_LIN) && j == 0) || (((\exists aux_mod_ULTIMATE.start_main_~k~0_41 : int :: (unknown-#memory_int-unknown[matriz][matriz + aux_mod_ULTIMATE.start_main_~k~0_41 % 4294967296 * 4] <= maior && aux_mod_ULTIMATE.start_main_~k~0_41 < 1) && 0 <= aux_mod_ULTIMATE.start_main_~k~0_41) && 1 == N_COL) && j == 1) [2021-01-06 16:39:47,895 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((k == 0 && 1 == N_COL) && 1 == N_LIN) && j == 0) || ((((\exists aux_mod_ULTIMATE.start_main_~k~0_41 : int :: (unknown-#memory_int-unknown[matriz][matriz + aux_mod_ULTIMATE.start_main_~k~0_41 % 4294967296 * 4] <= maior && aux_mod_ULTIMATE.start_main_~k~0_41 < 1) && 0 <= aux_mod_ULTIMATE.start_main_~k~0_41) && 1 == N_COL) && 1 == N_LIN) && j == 0) [2021-01-06 16:39:47,909 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/loops/matrix-1.c-witness.graphml [2021-01-06 16:39:47,909 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 16:39:47,911 INFO L168 Benchmark]: Toolchain (without parser) took 4558.45 ms. Allocated memory was 155.2 MB in the beginning and 187.7 MB in the end (delta: 32.5 MB). Free memory was 130.4 MB in the beginning and 95.6 MB in the end (delta: 34.7 MB). Peak memory consumption was 68.7 MB. Max. memory is 8.0 GB. [2021-01-06 16:39:47,911 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 155.2 MB. Free memory is still 127.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:39:47,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 283.35 ms. Allocated memory is still 155.2 MB. Free memory was 130.2 MB in the beginning and 120.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-01-06 16:39:47,913 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.03 ms. Allocated memory is still 155.2 MB. Free memory was 120.4 MB in the beginning and 119.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:39:47,913 INFO L168 Benchmark]: Boogie Preprocessor took 28.60 ms. Allocated memory is still 155.2 MB. Free memory was 118.8 MB in the beginning and 117.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:39:47,914 INFO L168 Benchmark]: RCFGBuilder took 362.46 ms. Allocated memory is still 155.2 MB. Free memory was 117.7 MB in the beginning and 104.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-01-06 16:39:47,915 INFO L168 Benchmark]: TraceAbstraction took 3775.81 ms. Allocated memory was 155.2 MB in the beginning and 187.7 MB in the end (delta: 32.5 MB). Free memory was 103.8 MB in the beginning and 98.3 MB in the end (delta: 5.5 MB). Peak memory consumption was 38.3 MB. Max. memory is 8.0 GB. [2021-01-06 16:39:47,915 INFO L168 Benchmark]: Witness Printer took 62.78 ms. Allocated memory is still 187.7 MB. Free memory was 98.3 MB in the beginning and 95.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:39:47,919 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 155.2 MB. Free memory is still 127.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 283.35 ms. Allocated memory is still 155.2 MB. Free memory was 130.2 MB in the beginning and 120.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 37.03 ms. Allocated memory is still 155.2 MB. Free memory was 120.4 MB in the beginning and 119.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.60 ms. Allocated memory is still 155.2 MB. Free memory was 118.8 MB in the beginning and 117.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 362.46 ms. Allocated memory is still 155.2 MB. Free memory was 117.7 MB in the beginning and 104.1 MB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3775.81 ms. Allocated memory was 155.2 MB in the beginning and 187.7 MB in the end (delta: 32.5 MB). Free memory was 103.8 MB in the beginning and 98.3 MB in the end (delta: 5.5 MB). Peak memory consumption was 38.3 MB. Max. memory is 8.0 GB. * Witness Printer took 62.78 ms. Allocated memory is still 187.7 MB. Free memory was 98.3 MB in the beginning and 95.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 21]: Loop Invariant [2021-01-06 16:39:47,928 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,928 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,928 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,929 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,930 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] Derived loop invariant: ((1 == N_COL && 1 == N_LIN) && j == 0) || (((\exists aux_mod_ULTIMATE.start_main_~k~0_41 : int :: (unknown-#memory_int-unknown[matriz][matriz + aux_mod_ULTIMATE.start_main_~k~0_41 % 4294967296 * 4] <= maior && aux_mod_ULTIMATE.start_main_~k~0_41 < 1) && 0 <= aux_mod_ULTIMATE.start_main_~k~0_41) && 1 == N_COL) && j == 1) - InvariantResult [Line: 22]: Loop Invariant [2021-01-06 16:39:47,930 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,931 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,931 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,931 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,932 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] [2021-01-06 16:39:47,932 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[aux_mod_ULTIMATE.start_main_~k~0_41,QUANTIFIED] Derived loop invariant: (((k == 0 && 1 == N_COL) && 1 == N_LIN) && j == 0) || ((((\exists aux_mod_ULTIMATE.start_main_~k~0_41 : int :: (unknown-#memory_int-unknown[matriz][matriz + aux_mod_ULTIMATE.start_main_~k~0_41 % 4294967296 * 4] <= maior && aux_mod_ULTIMATE.start_main_~k~0_41 < 1) && 0 <= aux_mod_ULTIMATE.start_main_~k~0_41) && 1 == N_COL) && 1 == N_LIN) && j == 0) - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 40 SDtfs, 34 SDslu, 59 SDs, 0 SdLazy, 127 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=3, 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, 19 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 10 NumberOfFragments, 86 HoareAnnotationTreeSize, 4 FomulaSimplifications, 6 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 63 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 52 ConstructedInterpolants, 11 QuantifiedInterpolants, 4411 SizeOfPredicates, 24 NumberOfNonLiveVariables, 367 ConjunctsInSsa, 52 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 12/17 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...