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 0.1.24-13a467a-m [2019-10-14 23:14:48,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:14:48,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:14:48,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:14:48,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:14:48,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:14:48,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:14:48,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:14:48,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:14:48,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:14:48,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:14:48,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:14:48,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:14:48,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:14:48,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:14:48,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:14:48,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:14:48,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:14:48,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:14:48,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:14:48,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:14:48,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:14:48,419 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:14:48,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:14:48,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:14:48,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:14:48,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:14:48,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:14:48,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:14:48,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:14:48,429 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:14:48,429 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:14:48,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:14:48,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:14:48,430 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:14:48,431 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:14:48,432 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 [2019-10-14 23:14:48,445 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:14:48,445 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:14:48,446 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:14:48,446 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:14:48,447 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:14:48,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:14:48,447 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:14:48,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:14:48,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:14:48,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:14:48,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:14:48,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:14:48,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:14:48,448 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:14:48,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:14:48,449 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:14:48,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:14:48,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:14:48,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:14:48,449 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:14:48,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:14:48,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:14:48,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:14:48,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:14:48,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:14:48,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:14:48,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:14:48,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:14:48,451 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:14:48,746 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:14:48,758 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:14:48,761 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:14:48,763 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:14:48,763 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:14:48,764 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2019-10-14 23:14:48,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ba81ac3b/98db29abacf24932b9164a9adf0e3677/FLAG5c76ea788 [2019-10-14 23:14:49,320 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:14:49,321 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lh-reducer.c [2019-10-14 23:14:49,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ba81ac3b/98db29abacf24932b9164a9adf0e3677/FLAG5c76ea788 [2019-10-14 23:14:49,697 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ba81ac3b/98db29abacf24932b9164a9adf0e3677 [2019-10-14 23:14:49,707 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:14:49,709 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:14:49,710 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:14:49,710 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:14:49,714 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:14:49,715 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:14:49" (1/1) ... [2019-10-14 23:14:49,718 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7741f479 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:49, skipping insertion in model container [2019-10-14 23:14:49,718 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:14:49" (1/1) ... [2019-10-14 23:14:49,725 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:14:49,759 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:14:50,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:14:50,151 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:14:50,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:14:50,237 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:14:50,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:50 WrapperNode [2019-10-14 23:14:50,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:14:50,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:14:50,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:14:50,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:14:50,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:50" (1/1) ... [2019-10-14 23:14:50,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:50" (1/1) ... [2019-10-14 23:14:50,264 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:50" (1/1) ... [2019-10-14 23:14:50,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:50" (1/1) ... [2019-10-14 23:14:50,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:50" (1/1) ... [2019-10-14 23:14:50,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:50" (1/1) ... [2019-10-14 23:14:50,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:50" (1/1) ... [2019-10-14 23:14:50,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:14:50,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:14:50,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:14:50,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:14:50,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:50" (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 [2019-10-14 23:14:50,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:14:50,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:14:50,390 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:14:50,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:14:50,391 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2019-10-14 23:14:50,392 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-10-14 23:14:50,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:14:50,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-14 23:14:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:14:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:14:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-14 23:14:50,393 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:14:50,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:14:50,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:14:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:14:50,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-14 23:14:50,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:14:51,191 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:14:51,192 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 23:14:51,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:14:51 BoogieIcfgContainer [2019-10-14 23:14:51,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:14:51,194 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:14:51,195 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:14:51,198 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:14:51,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:14:49" (1/3) ... [2019-10-14 23:14:51,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6162e664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:14:51, skipping insertion in model container [2019-10-14 23:14:51,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:14:50" (2/3) ... [2019-10-14 23:14:51,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6162e664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:14:51, skipping insertion in model container [2019-10-14 23:14:51,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:14:51" (3/3) ... [2019-10-14 23:14:51,202 INFO L109 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lh-reducer.c [2019-10-14 23:14:51,212 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:14:51,219 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:14:51,231 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:14:51,253 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:14:51,253 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:14:51,253 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:14:51,254 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:14:51,254 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:14:51,254 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:14:51,254 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:14:51,254 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:14:51,267 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-10-14 23:14:51,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-10-14 23:14:51,273 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:14:51,274 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:14:51,276 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:14:51,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:14:51,282 INFO L82 PathProgramCache]: Analyzing trace with hash 1960518123, now seen corresponding path program 1 times [2019-10-14 23:14:51,290 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:14:51,290 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264704103] [2019-10-14 23:14:51,291 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:14:51,291 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:14:51,291 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:14:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:14:51,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:14:51,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:14:51,743 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264704103] [2019-10-14 23:14:51,746 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:14:51,746 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-14 23:14:51,746 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481101457] [2019-10-14 23:14:51,752 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-14 23:14:51,752 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:14:51,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-14 23:14:51,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-14 23:14:51,768 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 5 states. [2019-10-14 23:14:51,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:14:51,959 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2019-10-14 23:14:51,960 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-14 23:14:51,961 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-10-14 23:14:51,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:14:51,970 INFO L225 Difference]: With dead ends: 38 [2019-10-14 23:14:51,971 INFO L226 Difference]: Without dead ends: 21 [2019-10-14 23:14:51,974 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:14:51,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-10-14 23:14:52,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2019-10-14 23:14:52,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-14 23:14:52,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-10-14 23:14:52,012 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 12 [2019-10-14 23:14:52,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:14:52,012 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-10-14 23:14:52,013 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-14 23:14:52,013 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-10-14 23:14:52,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-14 23:14:52,013 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:14:52,014 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:14:52,014 INFO L410 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:14:52,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:14:52,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1182240945, now seen corresponding path program 1 times [2019-10-14 23:14:52,015 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:14:52,015 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779578959] [2019-10-14 23:14:52,015 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:14:52,015 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:14:52,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:14:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:14:52,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:14:52,223 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:14:52,226 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779578959] [2019-10-14 23:14:52,226 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224812508] [2019-10-14 23:14:52,227 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:14:52,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:14:52,383 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-14 23:14:52,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:14:52,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:14:52,437 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:14:52,438 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2019-10-14 23:14:52,438 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46238452] [2019-10-14 23:14:52,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-14 23:14:52,440 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:14:52,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-14 23:14:52,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-14 23:14:52,441 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 7 states. [2019-10-14 23:14:52,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:14:52,659 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2019-10-14 23:14:52,659 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-14 23:14:52,659 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2019-10-14 23:14:52,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:14:52,661 INFO L225 Difference]: With dead ends: 29 [2019-10-14 23:14:52,661 INFO L226 Difference]: Without dead ends: 26 [2019-10-14 23:14:52,662 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 17 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2019-10-14 23:14:52,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2019-10-14 23:14:52,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2019-10-14 23:14:52,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-10-14 23:14:52,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2019-10-14 23:14:52,669 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 17 [2019-10-14 23:14:52,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:14:52,669 INFO L462 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2019-10-14 23:14:52,669 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-14 23:14:52,669 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-10-14 23:14:52,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-10-14 23:14:52,670 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:14:52,671 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:14:52,874 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:14:52,875 INFO L410 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:14:52,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:14:52,875 INFO L82 PathProgramCache]: Analyzing trace with hash 491744683, now seen corresponding path program 2 times [2019-10-14 23:14:52,875 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:14:52,875 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340492341] [2019-10-14 23:14:52,876 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:14:52,876 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:14:52,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:14:52,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:14:53,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:14:53,107 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:14:53,108 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340492341] [2019-10-14 23:14:53,116 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1241634] [2019-10-14 23:14:53,116 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:14:53,275 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-10-14 23:14:53,276 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-14 23:14:53,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 9 conjunts are in the unsatisfiable core [2019-10-14 23:14:53,282 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:14:53,322 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:14:53,323 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:14:53,323 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2019-10-14 23:14:53,323 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716248586] [2019-10-14 23:14:53,324 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-14 23:14:53,324 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:14:53,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-14 23:14:53,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-10-14 23:14:53,325 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 8 states. [2019-10-14 23:14:53,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:14:53,559 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2019-10-14 23:14:53,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-14 23:14:53,563 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2019-10-14 23:14:53,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:14:53,564 INFO L225 Difference]: With dead ends: 34 [2019-10-14 23:14:53,565 INFO L226 Difference]: Without dead ends: 31 [2019-10-14 23:14:53,565 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 22 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-10-14 23:14:53,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-10-14 23:14:53,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 28. [2019-10-14 23:14:53,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-10-14 23:14:53,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2019-10-14 23:14:53,571 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 22 [2019-10-14 23:14:53,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:14:53,571 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2019-10-14 23:14:53,571 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-14 23:14:53,572 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2019-10-14 23:14:53,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-10-14 23:14:53,573 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:14:53,573 INFO L380 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:14:53,776 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:14:53,780 INFO L410 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:14:53,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:14:53,781 INFO L82 PathProgramCache]: Analyzing trace with hash 161258737, now seen corresponding path program 3 times [2019-10-14 23:14:53,781 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:14:53,781 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346185405] [2019-10-14 23:14:53,781 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:14:53,781 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:14:53,781 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:14:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:14:53,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:14:53,964 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-14 23:14:53,964 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346185405] [2019-10-14 23:14:53,964 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250273135] [2019-10-14 23:14:53,965 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:14:54,199 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-10-14 23:14:54,199 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-10-14 23:14:54,201 INFO L256 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 21 conjunts are in the unsatisfiable core [2019-10-14 23:14:54,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-14 23:14:54,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:14:54,332 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-10-14 23:14:54,333 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 [2019-10-14 23:14:54,334 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-10-14 23:14:54,339 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-10-14 23:14:54,339 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-10-14 23:14:54,355 INFO L567 ElimStorePlain]: treesize reduction 5, result has 78.3 percent of original size [2019-10-14 23:14:54,356 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-10-14 23:14:54,356 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:62, output treesize:18 [2019-10-14 23:14:54,382 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-10-14 23:14:54,437 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 6 proven. 11 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-10-14 23:14:54,438 INFO L223 tionRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-10-14 23:14:54,438 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2019-10-14 23:14:54,438 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040158523] [2019-10-14 23:14:54,440 INFO L442 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-10-14 23:14:54,440 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:14:54,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-10-14 23:14:54,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2019-10-14 23:14:54,441 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand 14 states. [2019-10-14 23:14:55,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:14:55,240 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2019-10-14 23:14:55,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-10-14 23:14:55,240 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 27 [2019-10-14 23:14:55,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:14:55,241 INFO L225 Difference]: With dead ends: 39 [2019-10-14 23:14:55,241 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:14:55,243 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=157, Invalid=545, Unknown=0, NotChecked=0, Total=702 [2019-10-14 23:14:55,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:14:55,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:14:55,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:14:55,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:14:55,244 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 27 [2019-10-14 23:14:55,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:14:55,245 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:14:55,245 INFO L463 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-10-14 23:14:55,245 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:14:55,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:14:55,449 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-14 23:14:55,454 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:14:55,705 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 45 [2019-10-14 23:14:55,708 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:14:55,708 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.base| |old(#t~string0.base)|) (= ~__return_main~0 |old(~__return_main~0)|) (= |#t~string1.offset| |old(#t~string1.offset)|) (= |#t~string0.offset| |old(#t~string0.offset)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string44.base| |old(#t~string44.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string44.offset| |old(#t~string44.offset)|) (= |#t~string1.base| |old(#t~string1.base)|) (= |old(#length)| |#length|)) [2019-10-14 23:14:55,709 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:14:55,709 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:14:55,709 INFO L439 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ~Id_MCDC_93~0 0) [2019-10-14 23:14:55,709 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:14:55,709 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:14:55,709 INFO L443 ceAbstractionStarter]: For program point L159(lines 159 234) no Hoare annotation was computed. [2019-10-14 23:14:55,710 INFO L443 ceAbstractionStarter]: For program point L188(lines 188 206) no Hoare annotation was computed. [2019-10-14 23:14:55,710 INFO L443 ceAbstractionStarter]: For program point L219(line 219) no Hoare annotation was computed. [2019-10-14 23:14:55,710 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 219) no Hoare annotation was computed. [2019-10-14 23:14:55,710 INFO L443 ceAbstractionStarter]: For program point L217(lines 217 225) no Hoare annotation was computed. [2019-10-14 23:14:55,710 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 131 235) no Hoare annotation was computed. [2019-10-14 23:14:55,710 INFO L443 ceAbstractionStarter]: For program point L180(lines 180 227) no Hoare annotation was computed. [2019-10-14 23:14:55,710 INFO L443 ceAbstractionStarter]: For program point L178(lines 178 232) no Hoare annotation was computed. [2019-10-14 23:14:55,710 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 131 235) no Hoare annotation was computed. [2019-10-14 23:14:55,711 INFO L443 ceAbstractionStarter]: For program point L195(lines 195 205) no Hoare annotation was computed. [2019-10-14 23:14:55,711 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 131 235) the Hoare annotation is: (or (not (= 0 |old(~Id_MCDC_93~0)|)) (and (= ~Id_MCDC_93~0 0) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|))) [2019-10-14 23:14:55,712 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 (not (= (* 12 .cse2) 492)) (< .cse2 42) .cse0 (not (= 492 (* 12 .cse3))) .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)))) [2019-10-14 23:14:55,728 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:14:55,729 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:14:55,731 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:14:55,739 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:14:55,741 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:14:55,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:14:55,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:14:55 BoogieIcfgContainer [2019-10-14 23:14:55,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:14:55,750 INFO L168 Benchmark]: Toolchain (without parser) took 6040.12 ms. Allocated memory was 145.8 MB in the beginning and 279.4 MB in the end (delta: 133.7 MB). Free memory was 101.5 MB in the beginning and 198.7 MB in the end (delta: -97.2 MB). Peak memory consumption was 36.5 MB. Max. memory is 7.1 GB. [2019-10-14 23:14:55,752 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-10-14 23:14:55,754 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.20 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 101.3 MB in the beginning and 175.8 MB in the end (delta: -74.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-10-14 23:14:55,760 INFO L168 Benchmark]: Boogie Preprocessor took 70.07 ms. Allocated memory is still 203.9 MB. Free memory was 175.8 MB in the beginning and 172.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:14:55,761 INFO L168 Benchmark]: RCFGBuilder took 884.80 ms. Allocated memory is still 203.9 MB. Free memory was 172.5 MB in the beginning and 100.2 MB in the end (delta: 72.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 7.1 GB. [2019-10-14 23:14:55,762 INFO L168 Benchmark]: TraceAbstraction took 4552.76 ms. Allocated memory was 203.9 MB in the beginning and 279.4 MB in the end (delta: 75.5 MB). Free memory was 99.5 MB in the beginning and 198.7 MB in the end (delta: -99.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-10-14 23:14:55,768 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 145.8 MB. Free memory was 120.9 MB in the beginning and 120.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 528.20 ms. Allocated memory was 145.8 MB in the beginning and 203.9 MB in the end (delta: 58.2 MB). Free memory was 101.3 MB in the beginning and 175.8 MB in the end (delta: -74.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 70.07 ms. Allocated memory is still 203.9 MB. Free memory was 175.8 MB in the beginning and 172.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 884.80 ms. Allocated memory is still 203.9 MB. Free memory was 172.5 MB in the beginning and 100.2 MB in the end (delta: 72.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4552.76 ms. Allocated memory was 203.9 MB in the beginning and 279.4 MB in the end (delta: 75.5 MB). Free memory was 99.5 MB in the beginning and 198.7 MB in the end (delta: -99.1 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 [2019-10-14 23:14:55,776 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:14:55,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:14:55,777 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:14:55,778 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:14:55,778 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-10-14 23:14:55,778 WARN L1295 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)) || (((((!(12 * ((Id_MCDC_93 + 4294967295) % 4294967296) == 492) && (Id_MCDC_93 + 4294967295) % 4294967296 < 42) && Id_MCDC_89__Id_MCDC_95 == 0) && !(492 == 12 * ((Id_MCDC_89__Id_MCDC_96 + 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. Result: SAFE, OverallTime: 4.4s, OverallIterations: 4, TraceHistogramMax: 4, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, HoareTripleCheckerStatistics: 40 SDtfs, 112 SDslu, 105 SDs, 0 SdLazy, 336 SolverSat, 61 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 121 GetRequests, 65 SyntacticMatches, 6 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.3s 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 DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 10 NumberOfFragments, 156 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 254 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 144 NumberOfCodeBlocks, 139 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 137 ConstructedInterpolants, 0 QuantifiedInterpolants, 18221 SizeOfPredicates, 14 NumberOfNonLiveVariables, 1316 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 13/76 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...