java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/matrix-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 12:57:26,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 12:57:26,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 12:57:26,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 12:57:26,828 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 12:57:26,829 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 12:57:26,831 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 12:57:26,833 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 12:57:26,834 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 12:57:26,835 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 12:57:26,836 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 12:57:26,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 12:57:26,838 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 12:57:26,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 12:57:26,840 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 12:57:26,841 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 12:57:26,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 12:57:26,842 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 12:57:26,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 12:57:26,846 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 12:57:26,848 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 12:57:26,849 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 12:57:26,851 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 12:57:26,851 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 12:57:26,856 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 12:57:26,871 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 12:57:26,871 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 12:57:26,872 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 12:57:26,873 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-20 12:57:26,902 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 12:57:26,902 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 12:57:26,904 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 12:57:26,904 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 12:57:26,904 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 12:57:26,905 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 12:57:26,905 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 12:57:26,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 12:57:26,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 12:57:26,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 12:57:26,907 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 12:57:26,907 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 12:57:26,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 12:57:26,907 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 12:57:26,908 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 12:57:26,908 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 12:57:26,908 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 12:57:26,908 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 12:57:26,908 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 12:57:26,909 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 12:57:26,909 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 12:57:26,909 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 12:57:26,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 12:57:26,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 12:57:26,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 12:57:26,910 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 12:57:26,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 12:57:26,911 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 12:57:26,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 12:57:26,965 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 12:57:26,977 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 12:57:26,980 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 12:57:26,981 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 12:57:26,982 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 12:57:26,982 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/matrix-1.c [2019-09-20 12:57:27,051 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4d88ba7f/177221690b134f47b225b78d86aee1da/FLAG88f06c636 [2019-09-20 12:57:27,471 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 12:57:27,473 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/matrix-1.c [2019-09-20 12:57:27,480 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4d88ba7f/177221690b134f47b225b78d86aee1da/FLAG88f06c636 [2019-09-20 12:57:27,864 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4d88ba7f/177221690b134f47b225b78d86aee1da [2019-09-20 12:57:27,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 12:57:27,879 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 12:57:27,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 12:57:27,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 12:57:27,884 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 12:57:27,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:57:27" (1/1) ... [2019-09-20 12:57:27,887 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e95c345 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:27, skipping insertion in model container [2019-09-20 12:57:27,888 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:57:27" (1/1) ... [2019-09-20 12:57:27,895 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 12:57:27,911 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 12:57:28,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:57:28,191 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 12:57:28,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:57:28,409 INFO L192 MainTranslator]: Completed translation [2019-09-20 12:57:28,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:28 WrapperNode [2019-09-20 12:57:28,411 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 12:57:28,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 12:57:28,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 12:57:28,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 12:57:28,426 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:28" (1/1) ... [2019-09-20 12:57:28,427 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:28" (1/1) ... [2019-09-20 12:57:28,437 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:28" (1/1) ... [2019-09-20 12:57:28,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:28" (1/1) ... [2019-09-20 12:57:28,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:28" (1/1) ... [2019-09-20 12:57:28,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:28" (1/1) ... [2019-09-20 12:57:28,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:28" (1/1) ... [2019-09-20 12:57:28,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 12:57:28,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 12:57:28,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 12:57:28,474 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 12:57:28,475 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 12:57:28,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 12:57:28,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 12:57:28,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 12:57:28,539 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 12:57:28,539 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 12:57:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 12:57:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 12:57:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 12:57:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 12:57:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 12:57:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 12:57:28,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 12:57:28,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 12:57:28,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 12:57:28,827 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 12:57:28,828 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-20 12:57:28,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:57:28 BoogieIcfgContainer [2019-09-20 12:57:28,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 12:57:28,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 12:57:28,830 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 12:57:28,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 12:57:28,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 12:57:27" (1/3) ... [2019-09-20 12:57:28,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459493be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:57:28, skipping insertion in model container [2019-09-20 12:57:28,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:57:28" (2/3) ... [2019-09-20 12:57:28,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@459493be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:57:28, skipping insertion in model container [2019-09-20 12:57:28,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:57:28" (3/3) ... [2019-09-20 12:57:28,836 INFO L109 eAbstractionObserver]: Analyzing ICFG matrix-1.c [2019-09-20 12:57:28,853 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 12:57:28,859 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 12:57:28,876 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 12:57:28,907 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 12:57:28,908 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 12:57:28,908 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 12:57:28,908 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 12:57:28,908 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 12:57:28,908 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 12:57:28,908 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 12:57:28,908 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 12:57:28,909 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 12:57:28,923 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-09-20 12:57:28,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-20 12:57:28,928 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:28,929 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:28,931 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:28,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:28,935 INFO L82 PathProgramCache]: Analyzing trace with hash 1330517862, now seen corresponding path program 1 times [2019-09-20 12:57:28,937 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:28,937 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:28,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:28,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:28,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:29,021 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 12:57:29,021 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 12:57:29,021 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-20 12:57:29,047 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:29,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:57:29,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 1 conjunts are in the unsatisfiable core [2019-09-20 12:57:29,082 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 12:57:29,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:57:29,104 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:57:29,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 12:57:29,107 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 12:57:29,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 12:57:29,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 12:57:29,120 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 2 states. [2019-09-20 12:57:29,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:29,143 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2019-09-20 12:57:29,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 12:57:29,144 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2019-09-20 12:57:29,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:29,152 INFO L225 Difference]: With dead ends: 42 [2019-09-20 12:57:29,152 INFO L226 Difference]: Without dead ends: 17 [2019-09-20 12:57:29,156 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 12:57:29,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-09-20 12:57:29,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-09-20 12:57:29,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-09-20 12:57:29,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2019-09-20 12:57:29,190 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2019-09-20 12:57:29,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:29,191 INFO L475 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2019-09-20 12:57:29,191 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 12:57:29,191 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2019-09-20 12:57:29,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-20 12:57:29,192 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:29,192 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:29,193 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:29,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:29,193 INFO L82 PathProgramCache]: Analyzing trace with hash 672047389, now seen corresponding path program 1 times [2019-09-20 12:57:29,194 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:29,194 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:29,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:29,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:29,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:29,204 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 12:57:29,205 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 12:57:29,205 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-20 12:57:29,240 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:57:29,267 INFO L256 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-20 12:57:29,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 12:57:29,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:57:29,306 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:57:29,308 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 12:57:29,310 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 12:57:29,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 12:57:29,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 12:57:29,311 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2019-09-20 12:57:29,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:29,366 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2019-09-20 12:57:29,367 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 12:57:29,368 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2019-09-20 12:57:29,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:29,369 INFO L225 Difference]: With dead ends: 28 [2019-09-20 12:57:29,369 INFO L226 Difference]: Without dead ends: 22 [2019-09-20 12:57:29,370 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 12:57:29,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-09-20 12:57:29,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2019-09-20 12:57:29,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-20 12:57:29,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-09-20 12:57:29,380 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 12 [2019-09-20 12:57:29,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:29,381 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-09-20 12:57:29,382 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 12:57:29,382 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-09-20 12:57:29,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-20 12:57:29,384 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:29,384 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:29,385 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:29,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:29,386 INFO L82 PathProgramCache]: Analyzing trace with hash -830834987, now seen corresponding path program 1 times [2019-09-20 12:57:29,386 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:29,387 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:29,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:29,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:29,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:29,408 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 12:57:29,409 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 12:57:29,409 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-20 12:57:29,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:57:29,461 INFO L256 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-20 12:57:29,463 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 12:57:29,497 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:57:29,501 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:57:29,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 12:57:29,503 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 12:57:29,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 12:57:29,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 12:57:29,504 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2019-09-20 12:57:29,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:29,577 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2019-09-20 12:57:29,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 12:57:29,578 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-09-20 12:57:29,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:29,579 INFO L225 Difference]: With dead ends: 36 [2019-09-20 12:57:29,580 INFO L226 Difference]: Without dead ends: 25 [2019-09-20 12:57:29,580 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 12:57:29,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-09-20 12:57:29,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2019-09-20 12:57:29,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-09-20 12:57:29,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-09-20 12:57:29,588 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2019-09-20 12:57:29,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:29,590 INFO L475 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-09-20 12:57:29,590 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 12:57:29,590 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-09-20 12:57:29,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-20 12:57:29,592 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:29,592 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:29,593 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:29,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:29,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1529445450, now seen corresponding path program 1 times [2019-09-20 12:57:29,593 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:29,593 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:29,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:29,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:29,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:29,614 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 12:57:29,614 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 12:57:29,614 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/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 [2019-09-20 12:57:29,652 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:57:29,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 18 conjunts are in the unsatisfiable core [2019-09-20 12:57:29,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 12:57:29,811 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-20 12:57:29,812 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:30,037 WARN L191 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 28 [2019-09-20 12:57:30,038 INFO L567 ElimStorePlain]: treesize reduction 361, result has 9.3 percent of original size [2019-09-20 12:57:30,038 INFO L464 ElimStorePlain]: Eliminatee v_prenex_13 vanished before elimination [2019-09-20 12:57:30,038 INFO L464 ElimStorePlain]: Eliminatee v_prenex_1 vanished before elimination [2019-09-20 12:57:30,038 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_int_7| vanished before elimination [2019-09-20 12:57:30,039 INFO L464 ElimStorePlain]: Eliminatee v_prenex_3 vanished before elimination [2019-09-20 12:57:30,039 INFO L464 ElimStorePlain]: Eliminatee v_prenex_11 vanished before elimination [2019-09-20 12:57:30,039 INFO L464 ElimStorePlain]: Eliminatee v_prenex_5 vanished before elimination [2019-09-20 12:57:30,053 INFO L375 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 27 treesize of output 23 [2019-09-20 12:57:30,054 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:30,083 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 12:57:30,084 INFO L496 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-20 12:57:30,084 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 16 variables, input treesize:453, output treesize:10 [2019-09-20 12:57:30,100 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-09-20 12:57:30,102 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:30,104 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 12:57:30,105 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-20 12:57:30,105 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:15, output treesize:3 [2019-09-20 12:57:30,114 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:30,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:57:30,151 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-09-20 12:57:30,151 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2019-09-20 12:57:30,151 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-20 12:57:30,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-20 12:57:30,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-20 12:57:30,152 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 8 states. [2019-09-20 12:57:30,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:30,312 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2019-09-20 12:57:30,313 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-20 12:57:30,313 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2019-09-20 12:57:30,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:30,314 INFO L225 Difference]: With dead ends: 37 [2019-09-20 12:57:30,314 INFO L226 Difference]: Without dead ends: 31 [2019-09-20 12:57:30,315 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-09-20 12:57:30,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-09-20 12:57:30,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 24. [2019-09-20 12:57:30,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-09-20 12:57:30,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-09-20 12:57:30,320 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 18 [2019-09-20 12:57:30,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:30,321 INFO L475 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-09-20 12:57:30,321 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-20 12:57:30,321 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-09-20 12:57:30,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-09-20 12:57:30,322 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:30,322 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:30,322 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:30,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:30,323 INFO L82 PathProgramCache]: Analyzing trace with hash -1922472460, now seen corresponding path program 1 times [2019-09-20 12:57:30,323 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:30,323 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:30,325 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:30,325 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:30,326 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:30,340 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 12:57:30,341 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 12:57:30,341 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-09-20 12:57:30,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-20 12:57:30,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:57:30,387 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 24 conjunts are in the unsatisfiable core [2019-09-20 12:57:30,390 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 12:57:30,436 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-20 12:57:30,437 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:30,511 INFO L567 ElimStorePlain]: treesize reduction 137, result has 26.7 percent of original size [2019-09-20 12:57:30,512 INFO L464 ElimStorePlain]: Eliminatee v_prenex_18 vanished before elimination [2019-09-20 12:57:30,512 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_int_8| vanished before elimination [2019-09-20 12:57:30,519 INFO L375 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 22 treesize of output 18 [2019-09-20 12:57:30,520 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:30,536 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 12:57:30,537 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-20 12:57:30,537 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 8 variables, input treesize:251, output treesize:28 [2019-09-20 12:57:30,636 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2019-09-20 12:57:30,637 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:30,643 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 12:57:30,643 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-20 12:57:30,643 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:17, output treesize:5 [2019-09-20 12:57:30,658 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:30,690 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:57:30,695 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-09-20 12:57:30,695 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2019-09-20 12:57:30,696 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-20 12:57:30,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-20 12:57:30,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2019-09-20 12:57:30,697 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 12 states. [2019-09-20 12:57:30,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:30,955 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2019-09-20 12:57:30,957 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-20 12:57:30,958 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 18 [2019-09-20 12:57:30,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:30,959 INFO L225 Difference]: With dead ends: 49 [2019-09-20 12:57:30,959 INFO L226 Difference]: Without dead ends: 32 [2019-09-20 12:57:30,960 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2019-09-20 12:57:30,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-09-20 12:57:30,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 26. [2019-09-20 12:57:30,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-20 12:57:30,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 30 transitions. [2019-09-20 12:57:30,969 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 30 transitions. Word has length 18 [2019-09-20 12:57:30,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:30,969 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 30 transitions. [2019-09-20 12:57:30,969 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-20 12:57:30,970 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 30 transitions. [2019-09-20 12:57:30,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-20 12:57:30,973 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:30,973 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:30,974 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:30,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:30,974 INFO L82 PathProgramCache]: Analyzing trace with hash -422232267, now seen corresponding path program 2 times [2019-09-20 12:57:30,974 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:30,974 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:30,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:30,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:57:30,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:30,991 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 12:57:30,992 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 12:57:30,992 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-09-20 12:57:31,013 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-20 12:57:31,042 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-20 12:57:31,043 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-20 12:57:31,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 9 conjunts are in the unsatisfiable core [2019-09-20 12:57:31,047 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 12:57:31,071 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:57:31,076 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-09-20 12:57:31,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2019-09-20 12:57:31,076 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 12:57:31,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 12:57:31,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 12:57:31,077 INFO L87 Difference]: Start difference. First operand 26 states and 30 transitions. Second operand 5 states. [2019-09-20 12:57:31,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:31,102 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2019-09-20 12:57:31,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 12:57:31,103 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2019-09-20 12:57:31,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:31,104 INFO L225 Difference]: With dead ends: 42 [2019-09-20 12:57:31,104 INFO L226 Difference]: Without dead ends: 26 [2019-09-20 12:57:31,104 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-20 12:57:31,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-09-20 12:57:31,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2019-09-20 12:57:31,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-09-20 12:57:31,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2019-09-20 12:57:31,110 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 21 [2019-09-20 12:57:31,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:31,110 INFO L475 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2019-09-20 12:57:31,110 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 12:57:31,111 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2019-09-20 12:57:31,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-20 12:57:31,111 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:31,112 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:31,112 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:31,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:31,112 INFO L82 PathProgramCache]: Analyzing trace with hash 239488911, now seen corresponding path program 3 times [2019-09-20 12:57:31,113 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:31,113 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:31,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:31,114 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-20 12:57:31,115 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:31,120 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 12:57:31,120 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 12:57:31,121 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-20 12:57:31,156 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-20 12:57:31,211 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-09-20 12:57:31,211 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-20 12:57:31,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 25 conjunts are in the unsatisfiable core [2019-09-20 12:57:31,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 12:57:31,284 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-20 12:57:31,284 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:31,411 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 28 [2019-09-20 12:57:31,411 INFO L567 ElimStorePlain]: treesize reduction 407, result has 8.3 percent of original size [2019-09-20 12:57:31,411 INFO L464 ElimStorePlain]: Eliminatee v_prenex_31 vanished before elimination [2019-09-20 12:57:31,415 INFO L375 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 27 treesize of output 23 [2019-09-20 12:57:31,415 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:31,424 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 12:57:31,424 INFO L464 ElimStorePlain]: Eliminatee v_prenex_23 vanished before elimination [2019-09-20 12:57:31,424 INFO L464 ElimStorePlain]: Eliminatee v_prenex_33 vanished before elimination [2019-09-20 12:57:31,424 INFO L464 ElimStorePlain]: Eliminatee v_prenex_29 vanished before elimination [2019-09-20 12:57:31,424 INFO L464 ElimStorePlain]: Eliminatee |v_#memory_int_9| vanished before elimination [2019-09-20 12:57:31,425 INFO L464 ElimStorePlain]: Eliminatee v_prenex_27 vanished before elimination [2019-09-20 12:57:31,425 INFO L496 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-20 12:57:31,425 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 16 variables, input treesize:509, output treesize:10 [2019-09-20 12:57:31,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:31,447 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:31,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:31,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:31,452 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:31,453 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:31,455 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:31,487 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-20 12:57:31,487 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:31,522 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 12:57:31,522 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 132 [2019-09-20 12:57:31,525 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:31,526 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:31,536 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-20 12:57:31,536 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:31,567 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 12:57:31,567 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 132 [2019-09-20 12:57:31,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:31,569 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:31,577 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-20 12:57:31,578 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:31,584 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-20 12:57:31,585 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:31,595 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-20 12:57:31,602 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 86 treesize of output 85 [2019-09-20 12:57:31,603 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:31,628 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 12:57:31,629 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 123 [2019-09-20 12:57:31,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:31,630 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-09-20 12:57:32,288 WARN L191 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-20 12:57:32,289 INFO L567 ElimStorePlain]: treesize reduction 108, result has 76.6 percent of original size [2019-09-20 12:57:32,291 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 4 xjuncts. [2019-09-20 12:57:32,291 INFO L221 ElimStorePlain]: Needed 9 recursive calls to eliminate 2 variables, input treesize:669, output treesize:253 [2019-09-20 12:57:32,401 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,404 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,405 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,407 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,409 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,413 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,415 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,419 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,420 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,422 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,423 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,427 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,433 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,434 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,435 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,436 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,437 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,439 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,440 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,441 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,442 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,443 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,444 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,445 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,446 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,449 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,450 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,451 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,452 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,453 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,454 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,454 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,456 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,458 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,459 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,466 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,474 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,475 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,476 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,479 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,480 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,484 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,485 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,486 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,487 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,490 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,491 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,493 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,494 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,495 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,496 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,497 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,498 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,499 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,500 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,501 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,504 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-20 12:57:32,504 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,505 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,506 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,743 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 12:57:32,744 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 29 [2019-09-20 12:57:32,744 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,745 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2019-09-20 12:57:32,760 INFO L567 ElimStorePlain]: treesize reduction 20, result has 41.2 percent of original size [2019-09-20 12:57:32,762 INFO L496 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-20 12:57:32,763 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 5 variables, input treesize:58, output treesize:3 [2019-09-20 12:57:32,773 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:57:32,804 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Exception during sending of exit command (exit): Broken pipe [2019-09-20 12:57:32,816 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-09-20 12:57:32,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2019-09-20 12:57:32,817 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-20 12:57:32,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-20 12:57:32,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-20 12:57:32,817 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 10 states. [2019-09-20 12:57:33,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:33,139 INFO L93 Difference]: Finished difference Result 37 states and 39 transitions. [2019-09-20 12:57:33,139 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-20 12:57:33,139 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 24 [2019-09-20 12:57:33,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:33,140 INFO L225 Difference]: With dead ends: 37 [2019-09-20 12:57:33,141 INFO L226 Difference]: Without dead ends: 31 [2019-09-20 12:57:33,141 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2019-09-20 12:57:33,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-09-20 12:57:33,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2019-09-20 12:57:33,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-09-20 12:57:33,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2019-09-20 12:57:33,146 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 24 [2019-09-20 12:57:33,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:33,146 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2019-09-20 12:57:33,146 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-20 12:57:33,147 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2019-09-20 12:57:33,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2019-09-20 12:57:33,147 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:57:33,147 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:57:33,148 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:57:33,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:57:33,148 INFO L82 PathProgramCache]: Analyzing trace with hash -153538099, now seen corresponding path program 1 times [2019-09-20 12:57:33,148 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:57:33,148 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:57:33,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:33,150 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-20 12:57:33,150 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:57:33,155 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-20 12:57:33,155 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-20 12:57:33,155 INFO L224 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-09-20 12:57:33,188 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-20 12:57:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:57:33,206 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-20 12:57:33,207 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 12:57:33,221 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-20 12:57:33,224 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2019-09-20 12:57:33,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2019-09-20 12:57:33,225 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 12:57:33,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 12:57:33,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 12:57:33,226 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand 4 states. [2019-09-20 12:57:33,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:57:33,240 INFO L93 Difference]: Finished difference Result 31 states and 33 transitions. [2019-09-20 12:57:33,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 12:57:33,241 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2019-09-20 12:57:33,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:57:33,241 INFO L225 Difference]: With dead ends: 31 [2019-09-20 12:57:33,241 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 12:57:33,242 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 12:57:33,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 12:57:33,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 12:57:33,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 12:57:33,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 12:57:33,243 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2019-09-20 12:57:33,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:57:33,243 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 12:57:33,243 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 12:57:33,243 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 12:57:33,248 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 12:57:33,252 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 12:57:33,440 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-09-20 12:57:33,440 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-09-20 12:57:33,440 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:57:33,441 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:57:33,441 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-20 12:57:33,441 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-20 12:57:33,441 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-20 12:57:33,441 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 11 31) no Hoare annotation was computed. [2019-09-20 12:57:33,441 INFO L443 ceAbstractionStarter]: For program point L19-2(lines 19 26) no Hoare annotation was computed. [2019-09-20 12:57:33,442 INFO L439 ceAbstractionStarter]: At program point L19-3(lines 19 26) the Hoare annotation is: (let ((.cse2 (select |#memory_int| |main_~#matriz~0.base|)) (.cse0 (= 1 main_~N_COL~0)) (.cse1 (= 1 main_~N_LIN~0)) (.cse3 (= main_~j~0 1))) (or (and .cse0 (= main_~j~0 0) .cse1) (and .cse0 (<= (+ (select .cse2 (+ (* 4 (mod (+ main_~j~0 4294967295) 4294967296)) |main_~#matriz~0.offset|)) 1) main_~maior~0) .cse3) (and (<= (select .cse2 |main_~#matriz~0.offset|) main_~maior~0) (= 1 main_~k~0) .cse0 .cse1 .cse3))) [2019-09-20 12:57:33,442 INFO L443 ceAbstractionStarter]: For program point L19-4(lines 19 26) no Hoare annotation was computed. [2019-09-20 12:57:33,442 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 11 31) no Hoare annotation was computed. [2019-09-20 12:57:33,442 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 11 31) the Hoare annotation is: true [2019-09-20 12:57:33,442 INFO L439 ceAbstractionStarter]: At program point L28(line 28) the Hoare annotation is: (and (<= |main_#t~mem6| main_~maior~0) (<= (select (select |#memory_int| |main_~#matriz~0.base|) |main_~#matriz~0.offset|) main_~maior~0)) [2019-09-20 12:57:33,443 INFO L443 ceAbstractionStarter]: For program point L28-1(line 28) no Hoare annotation was computed. [2019-09-20 12:57:33,443 INFO L443 ceAbstractionStarter]: For program point L24(lines 24 25) no Hoare annotation was computed. [2019-09-20 12:57:33,443 INFO L443 ceAbstractionStarter]: For program point L20-2(lines 20 26) no Hoare annotation was computed. [2019-09-20 12:57:33,443 INFO L439 ceAbstractionStarter]: At program point L20-3(lines 20 26) the Hoare annotation is: (let ((.cse0 (= 1 main_~N_COL~0)) (.cse2 (= 1 main_~N_LIN~0)) (.cse1 (= main_~j~0 0))) (or (and (= main_~k~0 0) .cse0 .cse1 .cse2) (and (<= (select (select |#memory_int| |main_~#matriz~0.base|) |main_~#matriz~0.offset|) main_~maior~0) (= 1 main_~k~0) .cse0 .cse2 .cse1))) [2019-09-20 12:57:33,443 INFO L446 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2019-09-20 12:57:33,443 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2019-09-20 12:57:33,444 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-09-20 12:57:33,444 INFO L443 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-09-20 12:57:33,444 INFO L443 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-09-20 12:57:33,444 INFO L443 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2019-09-20 12:57:33,454 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:57:33,460 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:57:33,469 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:57:33,470 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:57:33,473 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:57:33,474 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:57:33,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 12:57:33 BoogieIcfgContainer [2019-09-20 12:57:33,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 12:57:33,481 INFO L168 Benchmark]: Toolchain (without parser) took 5599.63 ms. Allocated memory was 140.5 MB in the beginning and 254.8 MB in the end (delta: 114.3 MB). Free memory was 88.1 MB in the beginning and 157.3 MB in the end (delta: -69.2 MB). Peak memory consumption was 45.1 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:33,483 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 12:57:33,485 INFO L168 Benchmark]: CACSL2BoogieTranslator took 531.51 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 87.9 MB in the beginning and 180.3 MB in the end (delta: -92.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:33,486 INFO L168 Benchmark]: Boogie Preprocessor took 62.08 ms. Allocated memory is still 202.4 MB. Free memory was 180.3 MB in the beginning and 177.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:33,495 INFO L168 Benchmark]: RCFGBuilder took 355.19 ms. Allocated memory is still 202.4 MB. Free memory was 177.8 MB in the beginning and 163.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:33,496 INFO L168 Benchmark]: TraceAbstraction took 4646.89 ms. Allocated memory was 202.4 MB in the beginning and 254.8 MB in the end (delta: 52.4 MB). Free memory was 162.9 MB in the beginning and 157.3 MB in the end (delta: 5.6 MB). Peak memory consumption was 58.0 MB. Max. memory is 7.1 GB. [2019-09-20 12:57:33,510 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory was 106.4 MB in the beginning and 106.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 531.51 ms. Allocated memory was 140.5 MB in the beginning and 202.4 MB in the end (delta: 61.9 MB). Free memory was 87.9 MB in the beginning and 180.3 MB in the end (delta: -92.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.08 ms. Allocated memory is still 202.4 MB. Free memory was 180.3 MB in the beginning and 177.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 355.19 ms. Allocated memory is still 202.4 MB. Free memory was 177.8 MB in the beginning and 163.5 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4646.89 ms. Allocated memory was 202.4 MB in the beginning and 254.8 MB in the end (delta: 52.4 MB). Free memory was 162.9 MB in the beginning and 157.3 MB in the end (delta: 5.6 MB). Peak memory consumption was 58.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 20]: Loop Invariant [2019-09-20 12:57:33,519 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:57:33,519 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((k == 0 && 1 == N_COL) && j == 0) && 1 == N_LIN) || ((((unknown-#memory_int-unknown[matriz][matriz] <= maior && 1 == k) && 1 == N_COL) && 1 == N_LIN) && j == 0) - InvariantResult [Line: 19]: Loop Invariant [2019-09-20 12:57:33,520 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:57:33,520 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:57:33,521 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:57:33,521 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((1 == N_COL && j == 0) && 1 == N_LIN) || ((1 == N_COL && unknown-#memory_int-unknown[matriz][4 * ((j + 4294967295) % 4294967296) + matriz] + 1 <= maior) && j == 1)) || ((((unknown-#memory_int-unknown[matriz][matriz] <= maior && 1 == k) && 1 == N_COL) && 1 == N_LIN) && j == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 4.5s OverallTime, 8 OverallIterations, 2 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 110 SDtfs, 62 SDslu, 254 SDs, 0 SdLazy, 319 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 153 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 8 MinimizatonAttempts, 28 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 16 PreInvPairs, 25 NumberOfFragments, 105 HoareAnnotationTreeSize, 16 FomulaSimplifications, 98 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 58 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.5s InterpolantComputationTime, 144 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 136 ConstructedInterpolants, 5 QuantifiedInterpolants, 21471 SizeOfPredicates, 43 NumberOfNonLiveVariables, 582 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 18/35 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...