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-fea9116 [2019-09-20 12:58:36,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 12:58:36,475 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 12:58:36,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 12:58:36,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 12:58:36,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 12:58:36,490 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 12:58:36,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 12:58:36,494 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 12:58:36,498 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 12:58:36,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 12:58:36,503 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 12:58:36,503 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 12:58:36,504 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 12:58:36,508 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 12:58:36,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 12:58:36,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 12:58:36,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 12:58:36,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 12:58:36,519 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 12:58:36,521 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 12:58:36,522 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 12:58:36,523 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 12:58:36,524 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 12:58:36,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 12:58:36,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 12:58:36,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 12:58:36,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 12:58:36,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 12:58:36,533 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 12:58:36,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 12:58:36,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 12:58:36,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 12:58:36,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 12:58:36,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 12:58:36,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 12:58:36,537 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 12:58:36,552 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 12:58:36,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 12:58:36,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 12:58:36,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 12:58:36,554 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 12:58:36,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 12:58:36,555 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 12:58:36,555 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 12:58:36,555 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 12:58:36,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 12:58:36,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 12:58:36,556 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 12:58:36,556 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 12:58:36,556 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 12:58:36,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 12:58:36,557 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 12:58:36,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 12:58:36,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 12:58:36,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 12:58:36,558 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 12:58:36,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 12:58:36,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 12:58:36,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 12:58:36,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 12:58:36,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 12:58:36,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 12:58:36,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 12:58:36,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 12:58:36,561 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 12:58:36,612 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 12:58:36,630 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 12:58:36,636 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 12:58:36,638 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 12:58:36,638 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 12:58:36,639 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2019-09-20 12:58:36,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/120e0583f/dd63e9908ca2455b93797ed280724ef7/FLAG1a67d7890 [2019-09-20 12:58:37,219 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 12:58:37,220 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2019-09-20 12:58:37,231 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/120e0583f/dd63e9908ca2455b93797ed280724ef7/FLAG1a67d7890 [2019-09-20 12:58:37,534 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/120e0583f/dd63e9908ca2455b93797ed280724ef7 [2019-09-20 12:58:37,545 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 12:58:37,546 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 12:58:37,547 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 12:58:37,547 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 12:58:37,550 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 12:58:37,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:58:37" (1/1) ... [2019-09-20 12:58:37,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d3b0851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:37, skipping insertion in model container [2019-09-20 12:58:37,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 12:58:37" (1/1) ... [2019-09-20 12:58:37,561 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 12:58:37,594 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 12:58:37,986 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:58:37,998 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 12:58:38,111 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 12:58:38,126 INFO L192 MainTranslator]: Completed translation [2019-09-20 12:58:38,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:38 WrapperNode [2019-09-20 12:58:38,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 12:58:38,127 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 12:58:38,127 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 12:58:38,127 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 12:58:38,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:38" (1/1) ... [2019-09-20 12:58:38,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:38" (1/1) ... [2019-09-20 12:58:38,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:38" (1/1) ... [2019-09-20 12:58:38,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:38" (1/1) ... [2019-09-20 12:58:38,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:38" (1/1) ... [2019-09-20 12:58:38,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:38" (1/1) ... [2019-09-20 12:58:38,198 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:38" (1/1) ... [2019-09-20 12:58:38,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 12:58:38,204 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 12:58:38,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 12:58:38,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 12:58:38,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:38" (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 12:58:38,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 12:58:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 12:58:38,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 12:58:38,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 12:58:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2019-09-20 12:58:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-09-20 12:58:38,297 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 12:58:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 12:58:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 12:58:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 12:58:38,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 12:58:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 12:58:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 12:58:38,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 12:58:38,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 12:58:38,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 12:58:38,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 12:58:39,138 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 12:58:39,138 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 12:58:39,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:58:39 BoogieIcfgContainer [2019-09-20 12:58:39,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 12:58:39,141 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 12:58:39,141 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 12:58:39,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 12:58:39,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 12:58:37" (1/3) ... [2019-09-20 12:58:39,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27086ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:58:39, skipping insertion in model container [2019-09-20 12:58:39,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 12:58:38" (2/3) ... [2019-09-20 12:58:39,147 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27086ce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 12:58:39, skipping insertion in model container [2019-09-20 12:58:39,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 12:58:39" (3/3) ... [2019-09-20 12:58:39,149 INFO L109 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lh-reducer.c [2019-09-20 12:58:39,158 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 12:58:39,166 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 12:58:39,184 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 12:58:39,216 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-20 12:58:39,217 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 12:58:39,217 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-20 12:58:39,217 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 12:58:39,218 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 12:58:39,218 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 12:58:39,218 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 12:58:39,219 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 12:58:39,219 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 12:58:39,246 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-09-20 12:58:39,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-20 12:58:39,253 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:39,255 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:39,257 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:39,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:39,264 INFO L82 PathProgramCache]: Analyzing trace with hash 1960518123, now seen corresponding path program 1 times [2019-09-20 12:58:39,266 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:39,267 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:39,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:39,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:39,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:39,706 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 12:58:39,710 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 12:58:39,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-20 12:58:39,714 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-20 12:58:39,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-20 12:58:39,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-20 12:58:39,732 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-09-20 12:58:39,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:39,824 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2019-09-20 12:58:39,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 12:58:39,831 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-09-20 12:58:39,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:39,847 INFO L225 Difference]: With dead ends: 38 [2019-09-20 12:58:39,848 INFO L226 Difference]: Without dead ends: 21 [2019-09-20 12:58:39,855 INFO L636 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 [2019-09-20 12:58:39,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-20 12:58:39,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2019-09-20 12:58:39,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-20 12:58:39,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-09-20 12:58:39,912 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 12 [2019-09-20 12:58:39,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:39,913 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-09-20 12:58:39,913 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-20 12:58:39,915 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-09-20 12:58:39,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-20 12:58:39,916 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:39,916 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:39,917 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:39,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:39,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1182240945, now seen corresponding path program 1 times [2019-09-20 12:58:39,918 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:39,919 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:39,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:39,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:39,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:40,179 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:40,179 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 12:58:40,180 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 [2019-09-20 12:58:40,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:40,363 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-20 12:58:40,374 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 12:58:40,428 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:40,439 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 12:58:40,439 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2019-09-20 12:58:40,440 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 12:58:40,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 12:58:40,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-09-20 12:58:40,441 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 6 states. [2019-09-20 12:58:40,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:40,578 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-09-20 12:58:40,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 12:58:40,579 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-09-20 12:58:40,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:40,580 INFO L225 Difference]: With dead ends: 29 [2019-09-20 12:58:40,580 INFO L226 Difference]: Without dead ends: 26 [2019-09-20 12:58:40,581 INFO L636 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 [2019-09-20 12:58:40,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-09-20 12:58:40,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2019-09-20 12:58:40,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-09-20 12:58:40,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2019-09-20 12:58:40,587 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 17 [2019-09-20 12:58:40,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:40,588 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2019-09-20 12:58:40,588 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 12:58:40,588 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-09-20 12:58:40,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-09-20 12:58:40,589 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:40,589 INFO L407 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:40,589 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:40,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:40,590 INFO L82 PathProgramCache]: Analyzing trace with hash 491744683, now seen corresponding path program 2 times [2019-09-20 12:58:40,590 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:40,590 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:40,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:40,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 12:58:40,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:40,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:40,780 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:40,780 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 12:58:40,780 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 [2019-09-20 12:58:40,832 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-20 12:58:40,948 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-20 12:58:40,949 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-20 12:58:40,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 9 conjunts are in the unsatisfiable core [2019-09-20 12:58:40,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 12:58:41,004 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:41,008 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 12:58:41,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2019-09-20 12:58:41,009 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 12:58:41,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 12:58:41,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 12:58:41,011 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 7 states. [2019-09-20 12:58:41,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:41,174 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-09-20 12:58:41,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 12:58:41,177 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2019-09-20 12:58:41,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:41,178 INFO L225 Difference]: With dead ends: 34 [2019-09-20 12:58:41,178 INFO L226 Difference]: Without dead ends: 31 [2019-09-20 12:58:41,179 INFO L636 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 [2019-09-20 12:58:41,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-09-20 12:58:41,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2019-09-20 12:58:41,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-09-20 12:58:41,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2019-09-20 12:58:41,184 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 22 [2019-09-20 12:58:41,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:41,185 INFO L475 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2019-09-20 12:58:41,185 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 12:58:41,185 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2019-09-20 12:58:41,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-20 12:58:41,186 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 12:58:41,186 INFO L407 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 12:58:41,187 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 12:58:41,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 12:58:41,187 INFO L82 PathProgramCache]: Analyzing trace with hash 161258737, now seen corresponding path program 3 times [2019-09-20 12:58:41,187 INFO L224 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-20 12:58:41,187 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-20 12:58:41,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:41,189 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-20 12:58:41,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 12:58:41,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 12:58:41,351 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 12:58:41,351 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 12:58:41,352 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 [2019-09-20 12:58:41,416 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-20 12:58:41,654 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-09-20 12:58:41,654 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-20 12:58:41,657 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 21 conjunts are in the unsatisfiable core [2019-09-20 12:58:41,660 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 12:58:41,720 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:58:41,754 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-20 12:58:41,754 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-20 12:58:41,774 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-20 12:58:41,775 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 [2019-09-20 12:58:41,776 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-20 12:58:41,793 INFO L567 ElimStorePlain]: treesize reduction 5, result has 78.3 percent of original size [2019-09-20 12:58:41,794 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-20 12:58:41,794 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:62, output treesize:18 [2019-09-20 12:58:41,824 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 12:58:41,877 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-20 12:58:41,882 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-20 12:58:41,882 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 13 [2019-09-20 12:58:41,883 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-20 12:58:41,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-20 12:58:41,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-09-20 12:58:41,883 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 13 states. [2019-09-20 12:58:42,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 12:58:42,703 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2019-09-20 12:58:42,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-20 12:58:42,704 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 27 [2019-09-20 12:58:42,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 12:58:42,704 INFO L225 Difference]: With dead ends: 39 [2019-09-20 12:58:42,704 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 12:58:42,705 INFO L636 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 [2019-09-20 12:58:42,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 12:58:42,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 12:58:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 12:58:42,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 12:58:42,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-09-20 12:58:42,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 12:58:42,706 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 12:58:42,707 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-20 12:58:42,707 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 12:58:42,707 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 12:58:42,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-20 12:58:42,893 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 45 [2019-09-20 12:58:42,896 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-09-20 12:58:42,896 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2019-09-20 12:58:42,897 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:58:42,897 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-20 12:58:42,897 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~Id_MCDC_93~0 0) [2019-09-20 12:58:42,897 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-20 12:58:42,897 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-20 12:58:42,897 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2019-09-20 12:58:42,898 INFO L443 ceAbstractionStarter]: For program point L159(lines 159 234) no Hoare annotation was computed. [2019-09-20 12:58:42,898 INFO L443 ceAbstractionStarter]: For program point L188(lines 188 206) no Hoare annotation was computed. [2019-09-20 12:58:42,898 INFO L443 ceAbstractionStarter]: For program point L219(line 219) no Hoare annotation was computed. [2019-09-20 12:58:42,898 INFO L443 ceAbstractionStarter]: For program point L217(lines 217 225) no Hoare annotation was computed. [2019-09-20 12:58:42,898 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 131 235) no Hoare annotation was computed. [2019-09-20 12:58:42,898 INFO L443 ceAbstractionStarter]: For program point L180(lines 180 227) no Hoare annotation was computed. [2019-09-20 12:58:42,899 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 232) no Hoare annotation was computed. [2019-09-20 12:58:42,899 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 131 235) no Hoare annotation was computed. [2019-09-20 12:58:42,899 INFO L443 ceAbstractionStarter]: For program point L195(lines 195 205) no Hoare annotation was computed. [2019-09-20 12:58:42,899 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)) [2019-09-20 12:58:42,899 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)))) [2019-09-20 12:58:42,908 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:58:42,909 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:58:42,910 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:58:42,916 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:58:42,917 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:58:42,917 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:58:42,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 12:58:42 BoogieIcfgContainer [2019-09-20 12:58:42,920 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 12:58:42,922 INFO L168 Benchmark]: Toolchain (without parser) took 5375.59 ms. Allocated memory was 138.9 MB in the beginning and 264.2 MB in the end (delta: 125.3 MB). Free memory was 86.5 MB in the beginning and 175.9 MB in the end (delta: -89.4 MB). Peak memory consumption was 35.9 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:42,923 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 12:58:42,924 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.89 ms. Allocated memory was 138.9 MB in the beginning and 199.8 MB in the end (delta: 60.8 MB). Free memory was 86.3 MB in the beginning and 170.5 MB in the end (delta: -84.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:42,925 INFO L168 Benchmark]: Boogie Preprocessor took 76.25 ms. Allocated memory is still 199.8 MB. Free memory was 170.5 MB in the beginning and 166.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:42,926 INFO L168 Benchmark]: RCFGBuilder took 936.02 ms. Allocated memory is still 199.8 MB. Free memory was 166.8 MB in the beginning and 93.8 MB in the end (delta: 73.1 MB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. [2019-09-20 12:58:42,927 INFO L168 Benchmark]: TraceAbstraction took 3779.10 ms. Allocated memory was 199.8 MB in the beginning and 264.2 MB in the end (delta: 64.5 MB). Free memory was 93.1 MB in the beginning and 175.9 MB in the end (delta: -82.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-20 12:58:42,931 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 138.9 MB. Free memory was 105.0 MB in the beginning and 104.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 579.89 ms. Allocated memory was 138.9 MB in the beginning and 199.8 MB in the end (delta: 60.8 MB). Free memory was 86.3 MB in the beginning and 170.5 MB in the end (delta: -84.2 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 76.25 ms. Allocated memory is still 199.8 MB. Free memory was 170.5 MB in the beginning and 166.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 936.02 ms. Allocated memory is still 199.8 MB. Free memory was 166.8 MB in the beginning and 93.8 MB in the end (delta: 73.1 MB). Peak memory consumption was 73.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3779.10 ms. Allocated memory was 199.8 MB in the beginning and 264.2 MB in the end (delta: 64.5 MB). Free memory was 93.1 MB in the beginning and 175.9 MB in the end (delta: -82.8 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 [2019-09-20 12:58:42,941 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:58:42,941 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:58:42,941 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:58:42,942 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:58:42,943 WARN L1298 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-09-20 12:58:42,943 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, 0.1s 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, 1.1s 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, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s 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...