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/loop-industry-pattern/aiob_4.c.v+lh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-02 11:16:30,012 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-02 11:16:30,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-02 11:16:30,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-02 11:16:30,027 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-02 11:16:30,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-02 11:16:30,029 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-02 11:16:30,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-02 11:16:30,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-02 11:16:30,035 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-02 11:16:30,036 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-02 11:16:30,043 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-02 11:16:30,044 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-02 11:16:30,045 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-02 11:16:30,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-02 11:16:30,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-02 11:16:30,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-02 11:16:30,054 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-02 11:16:30,056 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-02 11:16:30,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-02 11:16:30,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-02 11:16:30,063 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-02 11:16:30,064 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-02 11:16:30,065 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-02 11:16:30,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-02 11:16:30,076 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-02 11:16:30,077 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-02 11:16:30,078 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-02 11:16:30,079 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-02 11:16:30,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-02 11:16:30,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-02 11:16:30,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-02 11:16:30,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-02 11:16:30,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-02 11:16:30,087 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-02 11:16:30,090 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-02 11:16:30,091 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 [2019-10-02 11:16:30,114 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-02 11:16:30,115 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-02 11:16:30,117 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-02 11:16:30,117 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-02 11:16:30,117 INFO L138 SettingsManager]: * Use SBE=true [2019-10-02 11:16:30,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-02 11:16:30,118 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-02 11:16:30,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-02 11:16:30,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-02 11:16:30,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-02 11:16:30,118 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-02 11:16:30,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-02 11:16:30,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-02 11:16:30,119 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-02 11:16:30,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-02 11:16:30,119 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-02 11:16:30,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-02 11:16:30,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-02 11:16:30,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-02 11:16:30,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-02 11:16:30,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-02 11:16:30,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-02 11:16:30,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-02 11:16:30,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-02 11:16:30,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-02 11:16:30,121 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-02 11:16:30,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-02 11:16:30,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-02 11:16:30,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-02 11:16:30,150 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-02 11:16:30,161 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-02 11:16:30,164 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-02 11:16:30,166 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-02 11:16:30,166 INFO L275 PluginConnector]: CDTParser initialized [2019-10-02 11:16:30,167 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2019-10-02 11:16:30,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cde20400/d20b604807b44e94aa95c79a2946d025/FLAG72a1b9be0 [2019-10-02 11:16:30,698 INFO L306 CDTParser]: Found 1 translation units. [2019-10-02 11:16:30,699 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2019-10-02 11:16:30,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cde20400/d20b604807b44e94aa95c79a2946d025/FLAG72a1b9be0 [2019-10-02 11:16:31,063 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cde20400/d20b604807b44e94aa95c79a2946d025 [2019-10-02 11:16:31,073 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-02 11:16:31,074 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-02 11:16:31,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-02 11:16:31,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-02 11:16:31,077 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-02 11:16:31,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:16:31" (1/1) ... [2019-10-02 11:16:31,080 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50a25fe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:16:31, skipping insertion in model container [2019-10-02 11:16:31,080 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.10 11:16:31" (1/1) ... [2019-10-02 11:16:31,086 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-02 11:16:31,119 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-02 11:16:31,507 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:16:31,518 INFO L188 MainTranslator]: Completed pre-run [2019-10-02 11:16:31,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-02 11:16:31,604 INFO L192 MainTranslator]: Completed translation [2019-10-02 11:16:31,605 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:16:31 WrapperNode [2019-10-02 11:16:31,605 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-02 11:16:31,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-02 11:16:31,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-02 11:16:31,606 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-02 11:16:31,616 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:16:31" (1/1) ... [2019-10-02 11:16:31,616 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:16:31" (1/1) ... [2019-10-02 11:16:31,632 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:16:31" (1/1) ... [2019-10-02 11:16:31,632 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:16:31" (1/1) ... [2019-10-02 11:16:31,665 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:16:31" (1/1) ... [2019-10-02 11:16:31,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:16:31" (1/1) ... [2019-10-02 11:16:31,673 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:16:31" (1/1) ... [2019-10-02 11:16:31,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-02 11:16:31,679 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-02 11:16:31,679 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-02 11:16:31,679 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-02 11:16:31,680 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:16:31" (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 [2019-10-02 11:16:31,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-02 11:16:31,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-02 11:16:31,761 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-02 11:16:31,761 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-02 11:16:31,762 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2019-10-02 11:16:31,762 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-10-02 11:16:31,762 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-02 11:16:31,762 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-02 11:16:31,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-02 11:16:31,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-02 11:16:31,763 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-02 11:16:31,764 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-02 11:16:31,764 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-02 11:16:31,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-02 11:16:31,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-02 11:16:31,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-02 11:16:31,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-02 11:16:32,607 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-02 11:16:32,608 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-02 11:16:32,610 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:16:32 BoogieIcfgContainer [2019-10-02 11:16:32,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-02 11:16:32,611 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-02 11:16:32,611 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-02 11:16:32,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-02 11:16:32,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.10 11:16:31" (1/3) ... [2019-10-02 11:16:32,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75cd30b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:16:32, skipping insertion in model container [2019-10-02 11:16:32,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.10 11:16:31" (2/3) ... [2019-10-02 11:16:32,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75cd30b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.10 11:16:32, skipping insertion in model container [2019-10-02 11:16:32,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.10 11:16:32" (3/3) ... [2019-10-02 11:16:32,620 INFO L109 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lh-reducer.c [2019-10-02 11:16:32,631 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-02 11:16:32,641 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-02 11:16:32,658 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-02 11:16:32,696 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-10-02 11:16:32,697 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-02 11:16:32,697 INFO L378 AbstractCegarLoop]: Hoare is true [2019-10-02 11:16:32,698 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-02 11:16:32,698 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-02 11:16:32,698 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-02 11:16:32,699 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-02 11:16:32,699 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-02 11:16:32,699 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-02 11:16:32,719 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-02 11:16:32,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-02 11:16:32,726 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:16:32,727 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:16:32,729 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:16:32,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:16:32,736 INFO L82 PathProgramCache]: Analyzing trace with hash 1960518123, now seen corresponding path program 1 times [2019-10-02 11:16:32,738 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:16:32,738 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:16:32,800 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:16:32,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:16:32,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:16:32,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:16:33,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:16:33,187 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-02 11:16:33,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-02 11:16:33,192 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-02 11:16:33,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-02 11:16:33,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-02 11:16:33,208 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-10-02 11:16:33,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:16:33,284 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2019-10-02 11:16:33,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-02 11:16:33,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-10-02 11:16:33,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:16:33,296 INFO L225 Difference]: With dead ends: 38 [2019-10-02 11:16:33,296 INFO L226 Difference]: Without dead ends: 21 [2019-10-02 11:16:33,300 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-10-02 11:16:33,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-02 11:16:33,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2019-10-02 11:16:33,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-02 11:16:33,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-10-02 11:16:33,339 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 12 [2019-10-02 11:16:33,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:16:33,339 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-10-02 11:16:33,340 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-02 11:16:33,340 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-10-02 11:16:33,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-02 11:16:33,340 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:16:33,341 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:16:33,341 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:16:33,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:16:33,341 INFO L82 PathProgramCache]: Analyzing trace with hash 1182240945, now seen corresponding path program 1 times [2019-10-02 11:16:33,342 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:16:33,342 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:16:33,344 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:16:33,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:16:33,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:16:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:16:33,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:16:33,570 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 11:16:33,570 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 11:16:33,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:16:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:16:33,732 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-02 11:16:33,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 11:16:33,797 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:16:33,805 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 11:16:33,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-10-02 11:16:33,806 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-02 11:16:33,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-02 11:16:33,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-10-02 11:16:33,807 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 6 states. [2019-10-02 11:16:33,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:16:33,978 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-10-02 11:16:33,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-02 11:16:33,980 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-10-02 11:16:33,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:16:33,981 INFO L225 Difference]: With dead ends: 29 [2019-10-02 11:16:33,981 INFO L226 Difference]: Without dead ends: 26 [2019-10-02 11:16:33,983 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-10-02 11:16:33,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-02 11:16:33,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2019-10-02 11:16:33,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-02 11:16:33,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2019-10-02 11:16:33,989 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 17 [2019-10-02 11:16:33,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:16:33,990 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2019-10-02 11:16:33,990 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-02 11:16:33,990 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-10-02 11:16:33,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-02 11:16:33,991 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:16:33,991 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:16:33,992 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:16:33,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:16:33,992 INFO L82 PathProgramCache]: Analyzing trace with hash 491744683, now seen corresponding path program 2 times [2019-10-02 11:16:33,992 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:16:33,992 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:16:33,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:16:33,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-02 11:16:33,995 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:16:34,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:16:34,176 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:16:34,176 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 11:16:34,176 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 11:16:34,236 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-10-02 11:16:34,363 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-02 11:16:34,364 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 11:16:34,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-02 11:16:34,369 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 11:16:34,396 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:16:34,400 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 11:16:34,401 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-10-02 11:16:34,402 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-02 11:16:34,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-02 11:16:34,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-02 11:16:34,403 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 7 states. [2019-10-02 11:16:34,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:16:34,552 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-10-02 11:16:34,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-02 11:16:34,552 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2019-10-02 11:16:34,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:16:34,553 INFO L225 Difference]: With dead ends: 34 [2019-10-02 11:16:34,554 INFO L226 Difference]: Without dead ends: 31 [2019-10-02 11:16:34,554 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-10-02 11:16:34,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-02 11:16:34,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2019-10-02 11:16:34,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-02 11:16:34,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2019-10-02 11:16:34,560 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 22 [2019-10-02 11:16:34,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:16:34,561 INFO L475 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2019-10-02 11:16:34,561 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-02 11:16:34,561 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2019-10-02 11:16:34,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-02 11:16:34,562 INFO L403 BasicCegarLoop]: Found error trace [2019-10-02 11:16:34,562 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-02 11:16:34,562 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-02 11:16:34,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-02 11:16:34,563 INFO L82 PathProgramCache]: Analyzing trace with hash 161258737, now seen corresponding path program 3 times [2019-10-02 11:16:34,563 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-10-02 11:16:34,563 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-10-02 11:16:34,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:16:34,565 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-10-02 11:16:34,565 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-02 11:16:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-02 11:16:34,696 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-02 11:16:34,696 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-02 11:16:34,697 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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-10-02 11:16:34,742 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-10-02 11:16:35,030 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-02 11:16:35,030 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-02 11:16:35,033 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-02 11:16:35,036 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-02 11:16:35,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-02 11:16:35,133 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-02 11:16:35,134 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-02 11:16:35,153 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-02 11:16:35,154 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 29 treesize of output 29 [2019-10-02 11:16:35,154 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-02 11:16:35,173 INFO L567 ElimStorePlain]: treesize reduction 5, result has 78.3 percent of original size [2019-10-02 11:16:35,174 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-02 11:16:35,174 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:62, output treesize:18 [2019-10-02 11:16:35,200 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-02 11:16:35,261 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-02 11:16:35,266 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-02 11:16:35,266 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2019-10-02 11:16:35,267 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-10-02 11:16:35,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-10-02 11:16:35,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-02 11:16:35,268 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 13 states. [2019-10-02 11:16:36,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-02 11:16:36,082 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2019-10-02 11:16:36,083 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-02 11:16:36,083 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2019-10-02 11:16:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-02 11:16:36,084 INFO L225 Difference]: With dead ends: 39 [2019-10-02 11:16:36,084 INFO L226 Difference]: Without dead ends: 0 [2019-10-02 11:16:36,085 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2019-10-02 11:16:36,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-02 11:16:36,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-02 11:16:36,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-02 11:16:36,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-02 11:16:36,087 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-10-02 11:16:36,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-02 11:16:36,087 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-02 11:16:36,088 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-10-02 11:16:36,088 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-02 11:16:36,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-02 11:16:36,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-02 11:16:36,356 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 45 [2019-10-02 11:16:36,359 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-02 11:16:36,359 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-10-02 11:16:36,359 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-02 11:16:36,359 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-02 11:16:36,360 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~Id_MCDC_93~0 0) [2019-10-02 11:16:36,360 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-02 11:16:36,360 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-02 11:16:36,360 INFO L443 ceAbstractionStarter]: For program point L159(lines 159 234) no Hoare annotation was computed. [2019-10-02 11:16:36,360 INFO L443 ceAbstractionStarter]: For program point L188(lines 188 206) no Hoare annotation was computed. [2019-10-02 11:16:36,360 INFO L443 ceAbstractionStarter]: For program point L219(line 219) no Hoare annotation was computed. [2019-10-02 11:16:36,360 INFO L443 ceAbstractionStarter]: For program point L217(lines 217 225) no Hoare annotation was computed. [2019-10-02 11:16:36,361 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 131 235) no Hoare annotation was computed. [2019-10-02 11:16:36,361 INFO L443 ceAbstractionStarter]: For program point L180(lines 180 227) no Hoare annotation was computed. [2019-10-02 11:16:36,361 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 232) no Hoare annotation was computed. [2019-10-02 11:16:36,361 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2019-10-02 11:16:36,361 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 131 235) no Hoare annotation was computed. [2019-10-02 11:16:36,361 INFO L443 ceAbstractionStarter]: For program point L195(lines 195 205) no Hoare annotation was computed. [2019-10-02 11:16:36,362 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 131 235) the Hoare annotation is: (or (not (= 0 |old(~Id_MCDC_93~0)|)) (= ~Id_MCDC_93~0 0)) [2019-10-02 11:16:36,362 INFO L439 ceAbstractionStarter]: At program point L200(lines 165 233) the Hoare annotation is: (let ((.cse0 (= |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 0)) (.cse1 (= 0 (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492))))) (or (not (= 0 |old(~Id_MCDC_93~0)|)) (and .cse0 (= ~Id_MCDC_93~0 0) .cse1 (= 0 main_~Id_MCDC_89__Id_MCDC_96~0)) (let ((.cse2 (mod (+ ~Id_MCDC_93~0 4294967295) 4294967296)) (.cse3 (mod (+ main_~Id_MCDC_89__Id_MCDC_96~0 4294967295) 4294967296))) (and (< .cse2 42) .cse0 (not (= (* 12 .cse3) 492)) (not (= 492 (* 12 .cse2))) .cse1 (< .cse3 42))) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) .cse0 (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 3)))) [2019-10-02 11:16:36,371 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-02 11:16:36,372 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-02 11:16:36,372 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-02 11:16:36,379 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-02 11:16:36,379 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-02 11:16:36,380 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-02 11:16:36,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.10 11:16:36 BoogieIcfgContainer [2019-10-02 11:16:36,382 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-02 11:16:36,384 INFO L168 Benchmark]: Toolchain (without parser) took 5310.15 ms. Allocated memory was 132.6 MB in the beginning and 264.2 MB in the end (delta: 131.6 MB). Free memory was 87.5 MB in the beginning and 176.4 MB in the end (delta: -88.9 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB. [2019-10-02 11:16:36,385 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 132.6 MB. Free memory was 106.9 MB in the beginning and 106.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-02 11:16:36,387 INFO L168 Benchmark]: CACSL2BoogieTranslator took 530.69 ms. Allocated memory was 132.6 MB in the beginning and 197.7 MB in the end (delta: 65.0 MB). Free memory was 87.3 MB in the beginning and 167.6 MB in the end (delta: -80.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-10-02 11:16:36,388 INFO L168 Benchmark]: Boogie Preprocessor took 73.34 ms. Allocated memory is still 197.7 MB. Free memory was 167.6 MB in the beginning and 163.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2019-10-02 11:16:36,388 INFO L168 Benchmark]: RCFGBuilder took 931.05 ms. Allocated memory is still 197.7 MB. Free memory was 163.4 MB in the beginning and 90.7 MB in the end (delta: 72.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 7.1 GB. [2019-10-02 11:16:36,389 INFO L168 Benchmark]: TraceAbstraction took 3771.18 ms. Allocated memory was 197.7 MB in the beginning and 264.2 MB in the end (delta: 66.6 MB). Free memory was 90.7 MB in the beginning and 176.4 MB in the end (delta: -85.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-02 11:16:36,394 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 132.6 MB. Free memory was 106.9 MB in the beginning and 106.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 530.69 ms. Allocated memory was 132.6 MB in the beginning and 197.7 MB in the end (delta: 65.0 MB). Free memory was 87.3 MB in the beginning and 167.6 MB in the end (delta: -80.3 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 73.34 ms. Allocated memory is still 197.7 MB. Free memory was 167.6 MB in the beginning and 163.4 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 931.05 ms. Allocated memory is still 197.7 MB. Free memory was 163.4 MB in the beginning and 90.7 MB in the end (delta: 72.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3771.18 ms. Allocated memory was 197.7 MB in the beginning and 264.2 MB in the end (delta: 66.6 MB). Free memory was 90.7 MB in the beginning and 176.4 MB in the end (delta: -85.7 MB). There was no memory consumed. 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: 219]: 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: 165]: Loop Invariant [2019-10-02 11:16:36,404 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-02 11:16:36,404 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-02 11:16:36,404 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-02 11:16:36,405 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-02 11:16:36,405 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-02 11:16:36,406 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((!(0 == \old(Id_MCDC_93)) || (((Id_MCDC_89__Id_MCDC_95 == 0 && Id_MCDC_93 == 0) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && 0 == Id_MCDC_89__Id_MCDC_96)) || ((((((Id_MCDC_93 + 4294967295) % 4294967296 < 42 && Id_MCDC_89__Id_MCDC_95 == 0) && !(12 * ((Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296) == 492)) && !(492 == 12 * ((Id_MCDC_93 + 4294967295) % 4294967296))) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && (Id_MCDC_89__Id_MCDC_96 + 4294967295) % 4294967296 < 42)) || (((((Id_MCDC_89__Id_MCDC_96 <= 1 && Id_MCDC_89__Id_MCDC_95 == 0) && 1 <= Id_MCDC_89__Id_MCDC_96) && 0 == unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492]) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 19 locations, 1 error locations. SAFE Result, 3.6s OverallTime, 4 OverallIterations, 4 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 48 SDtfs, 110 SDslu, 132 SDs, 0 SdLazy, 238 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 109 GetRequests, 61 SyntacticMatches, 6 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=3, 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, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 113 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 225 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 144 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 15557 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1316 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 13/76 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...