/usr/bin/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 14:00:58,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 14:00:58,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 14:00:58,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 14:00:58,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 14:00:58,057 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 14:00:58,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 14:00:58,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 14:00:58,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 14:00:58,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 14:00:58,078 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 14:00:58,080 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 14:00:58,080 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 14:00:58,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 14:00:58,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 14:00:58,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 14:00:58,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 14:00:58,090 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 14:00:58,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 14:00:58,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 14:00:58,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 14:00:58,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 14:00:58,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 14:00:58,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 14:00:58,104 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 14:00:58,110 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 14:00:58,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 14:00:58,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 14:00:58,113 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 14:00:58,121 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 14:00:58,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 14:00:58,122 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 14:00:58,123 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 14:00:58,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 14:00:58,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 14:00:58,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 14:00:58,123 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 14:00:58,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 14:00:58,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 14:00:58,124 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 14:00:58,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 14:00:58,124 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 14:00:58,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 14:00:58,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 14:00:58,125 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 14:00:58,125 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 14:00:58,125 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 14:00:58,125 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 14:00:58,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 14:00:58,126 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 14:00:58,126 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 14:00:58,126 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 14:00:58,426 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 14:00:58,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 14:00:58,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 14:00:58,444 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 14:00:58,444 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 14:00:58,445 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c [2020-07-07 14:00:58,501 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3012139b/a8536599e25c4c039ecd27640cdff0d7/FLAG9e6447b92 [2020-07-07 14:00:58,905 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 14:00:58,905 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.v+lhb-reducer.c [2020-07-07 14:00:58,911 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3012139b/a8536599e25c4c039ecd27640cdff0d7/FLAG9e6447b92 [2020-07-07 14:00:59,291 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c3012139b/a8536599e25c4c039ecd27640cdff0d7 [2020-07-07 14:00:59,302 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 14:00:59,304 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 14:00:59,305 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 14:00:59,305 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 14:00:59,308 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 14:00:59,309 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 02:00:59" (1/1) ... [2020-07-07 14:00:59,312 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5689d6ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:00:59, skipping insertion in model container [2020-07-07 14:00:59,313 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 02:00:59" (1/1) ... [2020-07-07 14:00:59,320 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 14:00:59,342 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 14:00:59,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 14:00:59,566 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 14:00:59,598 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 14:00:59,616 INFO L208 MainTranslator]: Completed translation [2020-07-07 14:00:59,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:00:59 WrapperNode [2020-07-07 14:00:59,617 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 14:00:59,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 14:00:59,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 14:00:59,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 14:00:59,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:00:59" (1/1) ... [2020-07-07 14:00:59,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:00:59" (1/1) ... [2020-07-07 14:00:59,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:00:59" (1/1) ... [2020-07-07 14:00:59,642 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:00:59" (1/1) ... [2020-07-07 14:00:59,651 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:00:59" (1/1) ... [2020-07-07 14:00:59,655 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:00:59" (1/1) ... [2020-07-07 14:00:59,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:00:59" (1/1) ... [2020-07-07 14:00:59,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 14:00:59,664 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 14:00:59,664 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 14:00:59,665 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 14:00:59,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:00:59" (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 [2020-07-07 14:00:59,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 14:00:59,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 14:00:59,826 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-07 14:00:59,826 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 14:00:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 14:00:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 14:00:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-07 14:00:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 14:00:59,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 14:00:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 14:00:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 14:00:59,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 14:01:00,150 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 14:01:00,150 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 14:01:00,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 02:01:00 BoogieIcfgContainer [2020-07-07 14:01:00,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 14:01:00,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 14:01:00,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 14:01:00,159 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 14:01:00,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 02:00:59" (1/3) ... [2020-07-07 14:01:00,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fc64c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 02:01:00, skipping insertion in model container [2020-07-07 14:01:00,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 02:00:59" (2/3) ... [2020-07-07 14:01:00,161 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fc64c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 02:01:00, skipping insertion in model container [2020-07-07 14:01:00,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 02:01:00" (3/3) ... [2020-07-07 14:01:00,163 INFO L109 eAbstractionObserver]: Analyzing ICFG id_build.i.v+lhb-reducer.c [2020-07-07 14:01:00,174 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 14:01:00,180 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-07-07 14:01:00,192 INFO L251 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-07-07 14:01:00,215 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 14:01:00,215 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 14:01:00,215 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 14:01:00,215 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 14:01:00,216 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 14:01:00,216 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 14:01:00,216 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 14:01:00,216 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 14:01:00,234 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-07-07 14:01:00,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-07 14:01:00,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:01:00,246 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:01:00,247 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:01:00,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:01:00,253 INFO L82 PathProgramCache]: Analyzing trace with hash -627197159, now seen corresponding path program 1 times [2020-07-07 14:01:00,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:01:00,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [425574089] [2020-07-07 14:01:00,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:01:00,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:01:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:01:00,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:01:00,550 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:01:00,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [425574089] [2020-07-07 14:01:00,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:01:00,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 14:01:00,556 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429538659] [2020-07-07 14:01:00,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 14:01:00,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:01:00,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 14:01:00,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 14:01:00,576 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 6 states. [2020-07-07 14:01:00,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:01:00,852 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2020-07-07 14:01:00,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 14:01:00,855 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-07-07 14:01:00,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:01:00,866 INFO L225 Difference]: With dead ends: 61 [2020-07-07 14:01:00,867 INFO L226 Difference]: Without dead ends: 43 [2020-07-07 14:01:00,871 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-07-07 14:01:00,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-07-07 14:01:00,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-07-07 14:01:00,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-07-07 14:01:00,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 45 transitions. [2020-07-07 14:01:00,929 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 45 transitions. Word has length 24 [2020-07-07 14:01:00,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:01:00,930 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 45 transitions. [2020-07-07 14:01:00,930 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 14:01:00,930 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 45 transitions. [2020-07-07 14:01:00,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-07 14:01:00,931 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:01:00,932 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:01:00,932 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 14:01:00,932 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:01:00,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:01:00,933 INFO L82 PathProgramCache]: Analyzing trace with hash 1662596629, now seen corresponding path program 1 times [2020-07-07 14:01:00,933 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:01:00,934 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [278062409] [2020-07-07 14:01:00,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:01:00,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:01:01,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:01:01,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:01:01,092 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:01:01,092 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [278062409] [2020-07-07 14:01:01,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:01:01,093 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 14:01:01,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387268054] [2020-07-07 14:01:01,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 14:01:01,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:01:01,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 14:01:01,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 14:01:01,095 INFO L87 Difference]: Start difference. First operand 43 states and 45 transitions. Second operand 6 states. [2020-07-07 14:01:01,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:01:01,324 INFO L93 Difference]: Finished difference Result 46 states and 48 transitions. [2020-07-07 14:01:01,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 14:01:01,325 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 29 [2020-07-07 14:01:01,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:01:01,326 INFO L225 Difference]: With dead ends: 46 [2020-07-07 14:01:01,327 INFO L226 Difference]: Without dead ends: 44 [2020-07-07 14:01:01,328 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-07-07 14:01:01,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-07-07 14:01:01,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 41. [2020-07-07 14:01:01,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-07 14:01:01,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2020-07-07 14:01:01,342 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 29 [2020-07-07 14:01:01,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:01:01,343 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2020-07-07 14:01:01,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 14:01:01,343 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2020-07-07 14:01:01,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2020-07-07 14:01:01,345 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 14:01:01,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 14:01:01,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 14:01:01,346 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 14:01:01,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 14:01:01,346 INFO L82 PathProgramCache]: Analyzing trace with hash 792220297, now seen corresponding path program 1 times [2020-07-07 14:01:01,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 14:01:01,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [571662305] [2020-07-07 14:01:01,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 14:01:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:01:01,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 14:01:01,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 14:01:01,531 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 14:01:01,531 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [571662305] [2020-07-07 14:01:01,531 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 14:01:01,532 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 14:01:01,532 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602707973] [2020-07-07 14:01:01,532 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 14:01:01,533 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 14:01:01,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 14:01:01,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-07-07 14:01:01,534 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 8 states. [2020-07-07 14:01:02,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 14:01:02,085 INFO L93 Difference]: Finished difference Result 72 states and 78 transitions. [2020-07-07 14:01:02,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 14:01:02,086 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 36 [2020-07-07 14:01:02,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 14:01:02,087 INFO L225 Difference]: With dead ends: 72 [2020-07-07 14:01:02,087 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 14:01:02,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2020-07-07 14:01:02,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 14:01:02,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 14:01:02,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 14:01:02,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 14:01:02,090 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2020-07-07 14:01:02,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 14:01:02,090 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 14:01:02,090 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 14:01:02,090 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 14:01:02,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 14:01:02,091 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 14:01:02,093 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 14:01:03,284 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-07 14:01:03,284 INFO L271 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: true [2020-07-07 14:01:03,284 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_100~0 |old(~__return_100~0)|)) [2020-07-07 14:01:03,285 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-07 14:01:03,285 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-07 14:01:03,285 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 14:01:03,285 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 14:01:03,285 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-07 14:01:03,285 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-07-07 14:01:03,285 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-07 14:01:03,285 INFO L268 CegarLoopResult]: For program point L5-1(line 5) no Hoare annotation was computed. [2020-07-07 14:01:03,286 INFO L268 CegarLoopResult]: For program point L5-3(lines 4 6) no Hoare annotation was computed. [2020-07-07 14:01:03,286 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-07 14:01:03,286 INFO L264 CegarLoopResult]: At program point L31(lines 31 87) the Hoare annotation is: (and (= 1 main_~__tmp_1~0) (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (= 1 main_~__VERIFIER_assert__cond~0) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,286 INFO L264 CegarLoopResult]: At program point L93(lines 12 100) the Hoare annotation is: (and (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,286 INFO L264 CegarLoopResult]: At program point L60(lines 60 68) the Hoare annotation is: (and (not (= 0 main_~__tmp_3~0)) (not (= 0 main_~__VERIFIER_assert__cond~2)) (not (= 0 main_~__VERIFIER_assert__cond~0)) (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (not (= 0 main_~__tmp_2~0)) (not (= 0 main_~__VERIFIER_assert__cond~1)) (not (= 0 main_~__tmp_1~0)) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,287 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (and (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,287 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 11 100) the Hoare annotation is: (or (and (not (= 0 main_~__VERIFIER_assert__cond~0)) (not (= 0 main_~__tmp_1~0))) (= |old(~__return_100~0)| ~__return_100~0)) [2020-07-07 14:01:03,287 INFO L264 CegarLoopResult]: At program point L56(line 56) the Hoare annotation is: (and (not (= 0 main_~__VERIFIER_assert__cond~0)) (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (not (= 0 main_~__tmp_2~0)) (not (= 0 main_~__VERIFIER_assert__cond~1)) (not (= 0 main_~__tmp_1~0)) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,287 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,288 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2020-07-07 14:01:03,288 INFO L264 CegarLoopResult]: At program point L81(line 81) the Hoare annotation is: (and (not (= 0 main_~__VERIFIER_assert__cond~0)) (= |old(~__return_100~0)| ~__return_100~0) (not (= 0 main_~__tmp_1~0))) [2020-07-07 14:01:03,288 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2020-07-07 14:01:03,288 INFO L264 CegarLoopResult]: At program point L77(lines 50 85) the Hoare annotation is: (and (not (= 0 main_~__VERIFIER_assert__cond~0)) (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (not (= 0 main_~__tmp_2~0)) (not (= 0 main_~__VERIFIER_assert__cond~1)) (not (= 0 main_~__tmp_1~0)) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,288 INFO L264 CegarLoopResult]: At program point L44(lines 44 85) the Hoare annotation is: (let ((.cse0 (< main_~main__i~0 main_~main__nlen~0)) (.cse1 (= |old(~__return_100~0)| ~__return_100~0)) (.cse2 (not (= 0 main_~__tmp_2~0))) (.cse3 (not (= 0 main_~__VERIFIER_assert__cond~1))) (.cse4 (< 0 (+ main_~main__i~0 1)))) (or (and (not (= 0 main_~__tmp_3~0)) (not (= 0 main_~__VERIFIER_assert__cond~2)) (not (= 0 main_~__VERIFIER_assert__cond~0)) .cse0 .cse1 .cse2 .cse3 (not (= 0 main_~__tmp_1~0)) .cse4) (and (= 1 main_~__tmp_1~0) .cse0 .cse1 .cse2 .cse3 (= 1 main_~__VERIFIER_assert__cond~0) .cse4))) [2020-07-07 14:01:03,289 INFO L264 CegarLoopResult]: At program point L73(line 73) the Hoare annotation is: (and (not (= 0 main_~__VERIFIER_assert__cond~0)) (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (not (= 0 main_~__tmp_2~0)) (not (= 0 main_~__VERIFIER_assert__cond~1)) (not (= 0 main_~__tmp_1~0)) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,289 INFO L264 CegarLoopResult]: At program point L98(line 98) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2020-07-07 14:01:03,289 INFO L264 CegarLoopResult]: At program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 62) the Hoare annotation is: false [2020-07-07 14:01:03,289 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (and (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,290 INFO L264 CegarLoopResult]: At program point L57(line 57) the Hoare annotation is: (and (not (= 0 main_~__VERIFIER_assert__cond~0)) (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (not (= 0 main_~__tmp_2~0)) (not (= 0 main_~__VERIFIER_assert__cond~1)) (not (= 0 main_~__tmp_1~0)) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,290 INFO L264 CegarLoopResult]: At program point L24(lines 24 94) the Hoare annotation is: (and (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,290 INFO L264 CegarLoopResult]: At program point L82(line 82) the Hoare annotation is: (and (not (= 0 main_~__VERIFIER_assert__cond~0)) (not (= 0 main_~__tmp_1~0))) [2020-07-07 14:01:03,290 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2020-07-07 14:01:03,290 INFO L264 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2020-07-07 14:01:03,291 INFO L264 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2020-07-07 14:01:03,291 INFO L264 CegarLoopResult]: At program point L74(lines 74 83) the Hoare annotation is: (and (not (= 0 main_~__VERIFIER_assert__cond~0)) (= |old(~__return_100~0)| ~__return_100~0) (not (= 0 main_~__tmp_2~0)) (not (= 0 main_~__VERIFIER_assert__cond~1)) (not (= 0 main_~__tmp_1~0)) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,291 INFO L264 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: (let ((.cse0 (< main_~main__i~0 main_~main__nlen~0)) (.cse1 (= |old(~__return_100~0)| ~__return_100~0)) (.cse2 (< 0 (+ main_~main__i~0 1)))) (or (and (= 1 main_~__tmp_1~0) .cse0 .cse1 (= 1 main_~__VERIFIER_assert__cond~0) .cse2) (and (not (= 0 main_~__tmp_3~0)) (not (= 0 main_~__VERIFIER_assert__cond~2)) (not (= 0 main_~__VERIFIER_assert__cond~0)) .cse0 .cse1 (not (= 0 main_~__tmp_1~0)) .cse2))) [2020-07-07 14:01:03,291 INFO L264 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: false [2020-07-07 14:01:03,291 INFO L264 CegarLoopResult]: At program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 46) the Hoare annotation is: false [2020-07-07 14:01:03,292 INFO L264 CegarLoopResult]: At program point L62(line 62) the Hoare annotation is: false [2020-07-07 14:01:03,292 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (and (= 1 main_~__tmp_1~0) (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,292 INFO L264 CegarLoopResult]: At program point L58(line 58) the Hoare annotation is: (and (not (= 0 main_~__tmp_3~0)) (not (= 0 main_~__VERIFIER_assert__cond~0)) (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (not (= 0 main_~__tmp_2~0)) (not (= 0 main_~__VERIFIER_assert__cond~1)) (not (= 0 main_~__tmp_1~0)) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,292 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2020-07-07 14:01:03,292 INFO L264 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: false [2020-07-07 14:01:03,293 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 11 100) the Hoare annotation is: (or (and (not (= 0 main_~__VERIFIER_assert__cond~0)) (not (= 0 main_~__tmp_1~0))) (= |old(~__return_100~0)| ~__return_100~0)) [2020-07-07 14:01:03,293 INFO L264 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: (let ((.cse0 (< main_~main__i~0 main_~main__nlen~0)) (.cse1 (= |old(~__return_100~0)| ~__return_100~0)) (.cse2 (not (= 0 main_~__tmp_2~0))) (.cse3 (< 0 (+ main_~main__i~0 1)))) (or (and (not (= 0 main_~__tmp_3~0)) (not (= 0 main_~__VERIFIER_assert__cond~2)) (not (= 0 main_~__VERIFIER_assert__cond~0)) .cse0 .cse1 .cse2 (not (= 0 main_~__tmp_1~0)) .cse3) (and (= 1 main_~__tmp_1~0) .cse0 .cse1 .cse2 (= 1 main_~__VERIFIER_assert__cond~0) .cse3))) [2020-07-07 14:01:03,293 INFO L264 CegarLoopResult]: At program point L67(lines 37 87) the Hoare annotation is: (let ((.cse0 (< main_~main__i~0 main_~main__nlen~0)) (.cse1 (= |old(~__return_100~0)| ~__return_100~0)) (.cse2 (< 0 (+ main_~main__i~0 1)))) (or (and (= 1 main_~__tmp_1~0) .cse0 .cse1 (= 1 main_~__VERIFIER_assert__cond~0) .cse2) (and (not (= 0 main_~__tmp_3~0)) (not (= 0 main_~__VERIFIER_assert__cond~2)) (not (= 0 main_~__VERIFIER_assert__cond~0)) .cse0 .cse1 (not (= 0 main_~__tmp_1~0)) .cse2))) [2020-07-07 14:01:03,293 INFO L264 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: false [2020-07-07 14:01:03,293 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) the Hoare annotation is: false [2020-07-07 14:01:03,294 INFO L264 CegarLoopResult]: At program point L63(line 63) the Hoare annotation is: false [2020-07-07 14:01:03,294 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (and (= 1 main_~__tmp_1~0) (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,294 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 100) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2020-07-07 14:01:03,294 INFO L264 CegarLoopResult]: At program point L92(line 92) the Hoare annotation is: (and (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,294 INFO L264 CegarLoopResult]: At program point L59(line 59) the Hoare annotation is: (and (not (= 0 main_~__tmp_3~0)) (not (= 0 main_~__VERIFIER_assert__cond~0)) (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (not (= 0 main_~__tmp_2~0)) (not (= 0 main_~__VERIFIER_assert__cond~1)) (not (= 0 main_~__tmp_1~0)) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,295 INFO L264 CegarLoopResult]: At program point L51(line 51) the Hoare annotation is: (let ((.cse0 (< main_~main__i~0 main_~main__nlen~0)) (.cse1 (= |old(~__return_100~0)| ~__return_100~0)) (.cse2 (not (= 0 main_~__tmp_2~0))) (.cse3 (not (= 0 main_~__VERIFIER_assert__cond~1))) (.cse4 (< 0 (+ main_~main__i~0 1)))) (or (and (not (= 0 main_~__tmp_3~0)) (not (= 0 main_~__VERIFIER_assert__cond~2)) (not (= 0 main_~__VERIFIER_assert__cond~0)) .cse0 .cse1 .cse2 .cse3 (not (= 0 main_~__tmp_1~0)) .cse4) (and (= 1 main_~__tmp_1~0) .cse0 .cse1 .cse2 .cse3 (= 1 main_~__VERIFIER_assert__cond~0) .cse4))) [2020-07-07 14:01:03,295 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2020-07-07 14:01:03,295 INFO L264 CegarLoopResult]: At program point L47(line 47) the Hoare annotation is: false [2020-07-07 14:01:03,295 INFO L264 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (= |old(~__return_100~0)| ~__return_100~0) [2020-07-07 14:01:03,295 INFO L264 CegarLoopResult]: At program point L76(line 76) the Hoare annotation is: (and (not (= 0 main_~__VERIFIER_assert__cond~0)) (< main_~main__i~0 main_~main__nlen~0) (= |old(~__return_100~0)| ~__return_100~0) (not (= 0 main_~__tmp_2~0)) (not (= 0 main_~__VERIFIER_assert__cond~1)) (not (= 0 main_~__tmp_1~0)) (< 0 (+ main_~main__i~0 1))) [2020-07-07 14:01:03,296 INFO L264 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: (let ((.cse0 (< main_~main__i~0 main_~main__nlen~0)) (.cse1 (= |old(~__return_100~0)| ~__return_100~0)) (.cse2 (not (= 0 main_~__tmp_2~0))) (.cse3 (< 0 (+ main_~main__i~0 1)))) (or (and (not (= 0 main_~__tmp_3~0)) (not (= 0 main_~__VERIFIER_assert__cond~2)) (not (= 0 main_~__VERIFIER_assert__cond~0)) .cse0 .cse1 .cse2 (not (= 0 main_~__tmp_1~0)) .cse3) (and (= 1 main_~__tmp_1~0) .cse0 .cse1 .cse2 (= 1 main_~__VERIFIER_assert__cond~0) .cse3))) [2020-07-07 14:01:03,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 02:01:03 BoogieIcfgContainer [2020-07-07 14:01:03,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 14:01:03,322 INFO L168 Benchmark]: Toolchain (without parser) took 4017.30 ms. Allocated memory was 135.3 MB in the beginning and 252.7 MB in the end (delta: 117.4 MB). Free memory was 100.9 MB in the beginning and 219.3 MB in the end (delta: -118.4 MB). Peak memory consumption was 132.7 MB. Max. memory is 7.1 GB. [2020-07-07 14:01:03,323 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 135.3 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 14:01:03,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.07 ms. Allocated memory is still 135.3 MB. Free memory was 100.5 MB in the beginning and 90.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-07-07 14:01:03,325 INFO L168 Benchmark]: Boogie Preprocessor took 45.89 ms. Allocated memory is still 135.3 MB. Free memory was 90.6 MB in the beginning and 89.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-07-07 14:01:03,326 INFO L168 Benchmark]: RCFGBuilder took 490.58 ms. Allocated memory was 135.3 MB in the beginning and 200.3 MB in the end (delta: 65.0 MB). Free memory was 89.2 MB in the beginning and 163.5 MB in the end (delta: -74.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-07-07 14:01:03,327 INFO L168 Benchmark]: TraceAbstraction took 3163.08 ms. Allocated memory was 200.3 MB in the beginning and 252.7 MB in the end (delta: 52.4 MB). Free memory was 162.8 MB in the beginning and 219.3 MB in the end (delta: -56.5 MB). Peak memory consumption was 129.6 MB. Max. memory is 7.1 GB. [2020-07-07 14:01:03,331 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 135.3 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 313.07 ms. Allocated memory is still 135.3 MB. Free memory was 100.5 MB in the beginning and 90.6 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.89 ms. Allocated memory is still 135.3 MB. Free memory was 90.6 MB in the beginning and 89.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 490.58 ms. Allocated memory was 135.3 MB in the beginning and 200.3 MB in the end (delta: 65.0 MB). Free memory was 89.2 MB in the beginning and 163.5 MB in the end (delta: -74.3 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3163.08 ms. Allocated memory was 200.3 MB in the beginning and 252.7 MB in the end (delta: 52.4 MB). Free memory was 162.8 MB in the beginning and 219.3 MB in the end (delta: -56.5 MB). Peak memory consumption was 129.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 33]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 62]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 46]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: \old(__return_100) == __return_100 && 0 < main__i + 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((((!(0 == __VERIFIER_assert__cond) && main__i < main__nlen) && \old(__return_100) == __return_100) && !(0 == __tmp_2)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __tmp_1)) && 0 < main__i + 1 - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: ((((1 == __tmp_1 && main__i < main__nlen) && \old(__return_100) == __return_100) && 1 == __VERIFIER_assert__cond) && 0 < main__i + 1) || ((((((!(0 == __tmp_3) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && main__i < main__nlen) && \old(__return_100) == __return_100) && !(0 == __tmp_1)) && 0 < main__i + 1) - ProcedureContractResult [Line: 11]: Procedure Contract for main Derived contract for procedure main: (!(0 == __VERIFIER_assert__cond) && !(0 == __tmp_1)) || \old(__return_100) == __return_100 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 60 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 126 SDtfs, 333 SDslu, 85 SDs, 0 SdLazy, 304 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, 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, 3 MinimizatonAttempts, 3 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 55 LocationsWithAnnotation, 55 PreInvPairs, 92 NumberOfFragments, 812 HoareAnnotationTreeSize, 55 FomulaSimplifications, 1452 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 55 FomulaSimplificationsInter, 432 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...