/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/loops/trex04.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:46:04,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:46:04,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:46:04,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 19:46:04,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:46:04,649 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:46:04,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:46:04,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:46:04,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:46:04,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:46:04,655 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:46:04,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:46:04,665 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:46:04,666 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:46:04,667 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:46:04,668 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:46:04,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 19:46:04,697 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:46:04,698 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:46:04,699 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:46:04,700 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:46:04,715 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:46:04,715 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:46:04,717 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:46:04,717 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:46:04,718 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:46:04,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:46:04,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:46:04,718 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:46:04,718 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:46:04,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:46:04,720 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:46:04,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:46:04,720 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:46:04,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:46:04,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:46:04,721 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:46:04,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:46:04,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:46:04,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:46:04,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:46:04,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:46:04,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:46:04,722 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:46:05,028 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:46:05,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:46:05,046 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:46:05,051 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:46:05,055 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:46:05,056 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex04.c [2020-08-22 19:46:05,128 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13a6cd974/34723314319648dfb022df4bec26dc89/FLAGd9ddabf0c [2020-08-22 19:46:05,630 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:46:05,631 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex04.c [2020-08-22 19:46:05,637 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13a6cd974/34723314319648dfb022df4bec26dc89/FLAGd9ddabf0c [2020-08-22 19:46:06,017 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/13a6cd974/34723314319648dfb022df4bec26dc89 [2020-08-22 19:46:06,024 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:46:06,026 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:46:06,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:46:06,028 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:46:06,032 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:46:06,033 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51df2e93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06, skipping insertion in model container [2020-08-22 19:46:06,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,046 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:46:06,064 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:46:06,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:46:06,254 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:46:06,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:46:06,287 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:46:06,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06 WrapperNode [2020-08-22 19:46:06,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:46:06,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:46:06,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:46:06,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:46:06,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (1/1) ... [2020-08-22 19:46:06,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:46:06,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:46:06,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:46:06,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:46:06,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (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 [2020-08-22 19:46:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:46:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:46:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-08-22 19:46:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-08-22 19:46:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-08-22 19:46:06,480 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:46:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:46:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-08-22 19:46:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-08-22 19:46:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-08-22 19:46:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-08-22 19:46:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:46:06,481 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-08-22 19:46:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:46:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:46:06,482 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:46:06,740 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:46:06,740 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 19:46:06,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:46:06 BoogieIcfgContainer [2020-08-22 19:46:06,748 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:46:06,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:46:06,750 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:46:06,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:46:06,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:46:06" (1/3) ... [2020-08-22 19:46:06,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd18c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:46:06, skipping insertion in model container [2020-08-22 19:46:06,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:46:06" (2/3) ... [2020-08-22 19:46:06,756 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cd18c12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:46:06, skipping insertion in model container [2020-08-22 19:46:06,756 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:46:06" (3/3) ... [2020-08-22 19:46:06,758 INFO L109 eAbstractionObserver]: Analyzing ICFG trex04.c [2020-08-22 19:46:06,776 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:46:06,786 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:46:06,807 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:46:06,867 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:46:06,867 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:46:06,868 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:46:06,868 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:46:06,868 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:46:06,868 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:46:06,868 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:46:06,869 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:46:06,898 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-08-22 19:46:06,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-08-22 19:46:06,910 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:46:06,912 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] [2020-08-22 19:46:06,912 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:46:06,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:46:06,920 INFO L82 PathProgramCache]: Analyzing trace with hash 179527167, now seen corresponding path program 1 times [2020-08-22 19:46:06,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:46:06,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496078592] [2020-08-22 19:46:06,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:46:06,992 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:46:07,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:46:07,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:46:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:46:07,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:46:07,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1496078592] [2020-08-22 19:46:07,188 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:46:07,189 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 19:46:07,189 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177850960] [2020-08-22 19:46:07,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 19:46:07,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:46:07,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 19:46:07,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-08-22 19:46:07,211 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 5 states. [2020-08-22 19:46:07,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:46:07,317 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2020-08-22 19:46:07,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 19:46:07,320 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-08-22 19:46:07,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:46:07,329 INFO L225 Difference]: With dead ends: 66 [2020-08-22 19:46:07,329 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 19:46:07,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 19:46:07,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 19:46:07,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 19:46:07,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 19:46:07,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 19:46:07,365 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 26 [2020-08-22 19:46:07,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:46:07,365 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 19:46:07,365 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 19:46:07,366 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 19:46:07,366 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 19:46:07,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:46:07,369 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 19:46:07,592 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:46:07,592 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:46:07,592 INFO L271 CegarLoopResult]: At program point fooEXIT(lines 16 23) the Hoare annotation is: true [2020-08-22 19:46:07,593 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-08-22 19:46:07,593 INFO L271 CegarLoopResult]: At program point fooENTRY(lines 16 23) the Hoare annotation is: true [2020-08-22 19:46:07,593 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-08-22 19:46:07,593 INFO L271 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true [2020-08-22 19:46:07,594 INFO L271 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: true [2020-08-22 19:46:07,594 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-08-22 19:46:07,594 INFO L271 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: true [2020-08-22 19:46:07,594 INFO L271 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: true [2020-08-22 19:46:07,594 INFO L271 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: true [2020-08-22 19:46:07,594 INFO L271 CegarLoopResult]: At program point L20-2(line 20) the Hoare annotation is: true [2020-08-22 19:46:07,595 INFO L271 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: true [2020-08-22 19:46:07,595 INFO L271 CegarLoopResult]: At program point L20-3(line 20) the Hoare annotation is: true [2020-08-22 19:46:07,595 INFO L271 CegarLoopResult]: At program point L21-4(lines 16 23) the Hoare annotation is: true [2020-08-22 19:46:07,595 INFO L271 CegarLoopResult]: At program point L19-3(line 19) the Hoare annotation is: true [2020-08-22 19:46:07,595 INFO L271 CegarLoopResult]: At program point L20-5(lines 17 23) the Hoare annotation is: true [2020-08-22 19:46:07,596 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-08-22 19:46:07,596 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-08-22 19:46:07,596 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 19:46:07,596 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-08-22 19:46:07,596 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-08-22 19:46:07,596 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-08-22 19:46:07,597 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-08-22 19:46:07,597 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-08-22 19:46:07,597 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-08-22 19:46:07,597 INFO L271 CegarLoopResult]: At program point L35-2(line 35) the Hoare annotation is: true [2020-08-22 19:46:07,597 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 25 46) the Hoare annotation is: true [2020-08-22 19:46:07,598 INFO L271 CegarLoopResult]: At program point L40-1(lines 26 46) the Hoare annotation is: true [2020-08-22 19:46:07,598 INFO L264 CegarLoopResult]: At program point L40-2(lines 40 43) the Hoare annotation is: (<= main_~x~0 0) [2020-08-22 19:46:07,598 INFO L271 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: true [2020-08-22 19:46:07,598 INFO L271 CegarLoopResult]: At program point L32-1(line 32) the Hoare annotation is: true [2020-08-22 19:46:07,598 INFO L271 CegarLoopResult]: At program point L32-3(lines 26 46) the Hoare annotation is: true [2020-08-22 19:46:07,599 INFO L271 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: true [2020-08-22 19:46:07,599 INFO L271 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: true [2020-08-22 19:46:07,599 INFO L271 CegarLoopResult]: At program point L28-2(line 28) the Hoare annotation is: true [2020-08-22 19:46:07,599 INFO L271 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: true [2020-08-22 19:46:07,599 INFO L271 CegarLoopResult]: At program point L37-1(line 37) the Hoare annotation is: true [2020-08-22 19:46:07,600 INFO L271 CegarLoopResult]: At program point L37-3(lines 26 46) the Hoare annotation is: true [2020-08-22 19:46:07,600 INFO L271 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: true [2020-08-22 19:46:07,600 INFO L271 CegarLoopResult]: At program point L33-2(line 33) the Hoare annotation is: true [2020-08-22 19:46:07,600 INFO L271 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-08-22 19:46:07,600 INFO L271 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: true [2020-08-22 19:46:07,601 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 25 46) the Hoare annotation is: true [2020-08-22 19:46:07,601 INFO L271 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: true [2020-08-22 19:46:07,601 INFO L271 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: true [2020-08-22 19:46:07,601 INFO L271 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: true [2020-08-22 19:46:07,601 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 25 46) the Hoare annotation is: true [2020-08-22 19:46:07,602 INFO L271 CegarLoopResult]: At program point L30-1(line 30) the Hoare annotation is: true [2020-08-22 19:46:07,602 INFO L271 CegarLoopResult]: At program point L30-2(line 30) the Hoare annotation is: true [2020-08-22 19:46:07,602 INFO L271 CegarLoopResult]: At program point L30-3(line 30) the Hoare annotation is: true [2020-08-22 19:46:07,602 INFO L271 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: true [2020-08-22 19:46:07,602 INFO L271 CegarLoopResult]: At program point L35-1(line 35) the Hoare annotation is: true [2020-08-22 19:46:07,602 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 7 12) the Hoare annotation is: true [2020-08-22 19:46:07,603 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 7 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 19:46:07,603 INFO L264 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 19:46:07,603 INFO L264 CegarLoopResult]: At program point L8(lines 8 10) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 19:46:07,603 INFO L264 CegarLoopResult]: At program point L8-2(lines 7 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-08-22 19:46:07,604 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-08-22 19:46:07,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 07:46:07 BoogieIcfgContainer [2020-08-22 19:46:07,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 19:46:07,632 INFO L168 Benchmark]: Toolchain (without parser) took 1604.47 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 102.2 MB in the beginning and 113.1 MB in the end (delta: -10.9 MB). Peak memory consumption was 53.1 MB. Max. memory is 7.1 GB. [2020-08-22 19:46:07,633 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 19:46:07,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.45 ms. Allocated memory is still 137.9 MB. Free memory was 102.0 MB in the beginning and 92.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2020-08-22 19:46:07,635 INFO L168 Benchmark]: Boogie Preprocessor took 114.37 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 92.1 MB in the beginning and 179.8 MB in the end (delta: -87.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-08-22 19:46:07,636 INFO L168 Benchmark]: RCFGBuilder took 344.82 ms. Allocated memory is still 201.9 MB. Free memory was 179.4 MB in the beginning and 163.0 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2020-08-22 19:46:07,637 INFO L168 Benchmark]: TraceAbstraction took 878.98 ms. Allocated memory is still 201.9 MB. Free memory was 162.3 MB in the beginning and 113.1 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. [2020-08-22 19:46:07,641 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 260.45 ms. Allocated memory is still 137.9 MB. Free memory was 102.0 MB in the beginning and 92.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.37 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 92.1 MB in the beginning and 179.8 MB in the end (delta: -87.7 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 344.82 ms. Allocated memory is still 201.9 MB. Free memory was 179.4 MB in the beginning and 163.0 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 878.98 ms. Allocated memory is still 201.9 MB. Free memory was 162.3 MB in the beginning and 113.1 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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 - ProcedureContractResult [Line: 16]: Procedure Contract for foo Derived contract for procedure foo: 1 - ProcedureContractResult [Line: 25]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 7]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 60 SDtfs, 6 SDslu, 170 SDs, 0 SdLazy, 12 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 55 LocationsWithAnnotation, 77 PreInvPairs, 86 NumberOfFragments, 82 HoareAnnotationTreeSize, 77 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 55 FomulaSimplificationsInter, 15 FormulaSimplificationTreeSizeReductionInter, 0.1s 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...