/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-lit/jm2006_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 17:49:54,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:49:54,242 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:49:54,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 17:49:54,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 17:49:54,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 17:49:54,297 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 17:49:54,302 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 17:49:54,305 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 17:49:54,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 17:49:54,309 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 17:49:54,310 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 17:49:54,311 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:49:54,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:49:54,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:49:54,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:49:54,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:49:54,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:49:54,323 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:49:54,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:49:54,335 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:49:54,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:49:54,337 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:49:54,338 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:49:54,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 17:49:54,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:49:54,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:49:54,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:49:54,375 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 17:49:54,396 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:49:54,396 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:49:54,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:49:54,399 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:49:54,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:49:54,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:49:54,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:49:54,399 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:49:54,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:49:54,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:49:54,400 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:49:54,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:49:54,400 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:49:54,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:49:54,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:49:54,401 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:49:54,401 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:49:54,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:49:54,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:49:54,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:49:54,402 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:49:54,402 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:49:54,403 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:49:54,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:49:54,876 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:49:54,883 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:49:54,885 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:49:54,888 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:49:54,889 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/jm2006_variant.i [2020-09-04 17:49:54,978 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35b31d198/eac298f6df39410a86b407ba7fa80a3d/FLAG3f3407f57 [2020-09-04 17:49:55,542 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:49:55,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-lit/jm2006_variant.i [2020-09-04 17:49:55,551 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35b31d198/eac298f6df39410a86b407ba7fa80a3d/FLAG3f3407f57 [2020-09-04 17:49:55,899 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/35b31d198/eac298f6df39410a86b407ba7fa80a3d [2020-09-04 17:49:55,913 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:49:55,915 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:49:55,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:49:55,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:49:55,921 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:49:55,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:49:55" (1/1) ... [2020-09-04 17:49:55,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c9302d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:55, skipping insertion in model container [2020-09-04 17:49:55,927 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:49:55" (1/1) ... [2020-09-04 17:49:55,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:49:55,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:49:56,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:49:56,184 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:49:56,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:49:56,224 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:49:56,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:56 WrapperNode [2020-09-04 17:49:56,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:49:56,226 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:49:56,226 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:49:56,226 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:49:56,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:56" (1/1) ... [2020-09-04 17:49:56,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:56" (1/1) ... [2020-09-04 17:49:56,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:56" (1/1) ... [2020-09-04 17:49:56,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:56" (1/1) ... [2020-09-04 17:49:56,338 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:56" (1/1) ... [2020-09-04 17:49:56,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:56" (1/1) ... [2020-09-04 17:49:56,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:56" (1/1) ... [2020-09-04 17:49:56,348 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:49:56,348 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:49:56,348 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:49:56,349 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:49:56,350 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:56" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 17:49:56,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:49:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:49:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 17:49:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 17:49:56,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:49:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:49:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 17:49:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 17:49:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 17:49:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 17:49:56,433 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:49:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:49:56,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:49:56,697 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:49:56,697 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 17:49:56,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:49:56 BoogieIcfgContainer [2020-09-04 17:49:56,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:49:56,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:49:56,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:49:56,727 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:49:56,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:49:55" (1/3) ... [2020-09-04 17:49:56,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b154a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:49:56, skipping insertion in model container [2020-09-04 17:49:56,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:49:56" (2/3) ... [2020-09-04 17:49:56,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b154a9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:49:56, skipping insertion in model container [2020-09-04 17:49:56,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:49:56" (3/3) ... [2020-09-04 17:49:56,735 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006_variant.i [2020-09-04 17:49:56,750 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:49:56,764 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:49:56,784 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:49:56,811 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:49:56,812 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:49:56,812 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:49:56,812 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:49:56,812 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:49:56,812 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:49:56,812 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:49:56,813 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:49:56,830 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2020-09-04 17:49:56,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-04 17:49:56,843 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:49:56,844 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] [2020-09-04 17:49:56,845 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:49:56,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:49:56,852 INFO L82 PathProgramCache]: Analyzing trace with hash 394160949, now seen corresponding path program 1 times [2020-09-04 17:49:56,861 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:49:56,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384286135] [2020-09-04 17:49:56,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:49:56,931 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:49:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:57,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:49:57,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:57,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:49:57,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384286135] [2020-09-04 17:49:57,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:49:57,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-04 17:49:57,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101316185] [2020-09-04 17:49:57,043 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-04 17:49:57,043 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:49:57,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-04 17:49:57,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-04 17:49:57,065 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 2 states. [2020-09-04 17:49:57,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:49:57,101 INFO L93 Difference]: Finished difference Result 53 states and 60 transitions. [2020-09-04 17:49:57,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-04 17:49:57,103 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2020-09-04 17:49:57,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:49:57,115 INFO L225 Difference]: With dead ends: 53 [2020-09-04 17:49:57,115 INFO L226 Difference]: Without dead ends: 31 [2020-09-04 17:49:57,120 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-04 17:49:57,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-09-04 17:49:57,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-09-04 17:49:57,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-09-04 17:49:57,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2020-09-04 17:49:57,177 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 23 [2020-09-04 17:49:57,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:49:57,178 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2020-09-04 17:49:57,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-04 17:49:57,178 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2020-09-04 17:49:57,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-09-04 17:49:57,180 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:49:57,181 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] [2020-09-04 17:49:57,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:49:57,183 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:49:57,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:49:57,184 INFO L82 PathProgramCache]: Analyzing trace with hash 79240288, now seen corresponding path program 1 times [2020-09-04 17:49:57,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:49:57,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [842859985] [2020-09-04 17:49:57,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:49:57,188 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:49:57,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:57,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:49:57,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:57,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:49:57,529 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [842859985] [2020-09-04 17:49:57,529 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:49:57,530 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 17:49:57,530 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382355647] [2020-09-04 17:49:57,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 17:49:57,531 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:49:57,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 17:49:57,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-04 17:49:57,533 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand 9 states. [2020-09-04 17:49:57,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:49:57,810 INFO L93 Difference]: Finished difference Result 40 states and 40 transitions. [2020-09-04 17:49:57,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 17:49:57,811 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-09-04 17:49:57,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:49:57,813 INFO L225 Difference]: With dead ends: 40 [2020-09-04 17:49:57,813 INFO L226 Difference]: Without dead ends: 34 [2020-09-04 17:49:57,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2020-09-04 17:49:57,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-04 17:49:57,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-09-04 17:49:57,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-04 17:49:57,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 32 transitions. [2020-09-04 17:49:57,825 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 32 transitions. Word has length 23 [2020-09-04 17:49:57,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:49:57,826 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 32 transitions. [2020-09-04 17:49:57,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 17:49:57,826 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 32 transitions. [2020-09-04 17:49:57,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-09-04 17:49:57,827 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:49:57,828 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] [2020-09-04 17:49:57,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 17:49:57,828 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:49:57,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:49:57,829 INFO L82 PathProgramCache]: Analyzing trace with hash 821188708, now seen corresponding path program 1 times [2020-09-04 17:49:57,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:49:57,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2092053951] [2020-09-04 17:49:57,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:49:57,858 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:49:57,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:58,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:49:58,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:58,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:49:58,320 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2092053951] [2020-09-04 17:49:58,320 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:49:58,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-04 17:49:58,321 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301471858] [2020-09-04 17:49:58,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 17:49:58,321 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:49:58,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 17:49:58,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2020-09-04 17:49:58,324 INFO L87 Difference]: Start difference. First operand 32 states and 32 transitions. Second operand 14 states. [2020-09-04 17:49:58,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:49:58,735 INFO L93 Difference]: Finished difference Result 34 states and 34 transitions. [2020-09-04 17:49:58,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-04 17:49:58,736 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 31 [2020-09-04 17:49:58,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:49:58,737 INFO L225 Difference]: With dead ends: 34 [2020-09-04 17:49:58,737 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 17:49:58,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=469, Unknown=0, NotChecked=0, Total=552 [2020-09-04 17:49:58,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 17:49:58,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 17:49:58,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 17:49:58,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 17:49:58,739 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2020-09-04 17:49:58,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:49:58,740 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 17:49:58,740 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 17:49:58,740 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 17:49:58,740 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 17:49:58,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 17:49:58,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 17:49:59,023 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:49:59,023 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:49:59,023 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:49:59,024 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 17:49:59,024 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 17:49:59,024 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:49:59,024 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:49:59,025 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:49:59,025 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-04 17:49:59,025 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-04 17:49:59,025 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:49:59,025 INFO L271 CegarLoopResult]: At program point L27(lines 27 29) the Hoare annotation is: true [2020-09-04 17:49:59,026 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (let ((.cse1 (+ main_~y~0 main_~i~0 main_~z~0 1)) (.cse0 (+ main_~x~0 main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-09-04 17:49:59,026 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 13 31) the Hoare annotation is: true [2020-09-04 17:49:59,026 INFO L264 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: (let ((.cse1 (+ main_~y~0 main_~i~0 |main_#t~post3| 1)) (.cse2 (+ main_~y~0 main_~i~0 main_~z~0 1)) (.cse0 (+ main_~x~0 main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= .cse0 .cse2) (<= .cse2 .cse0))) [2020-09-04 17:49:59,026 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-09-04 17:49:59,027 INFO L264 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: (let ((.cse1 (+ main_~y~0 main_~i~0 |main_#t~post3| 1)) (.cse0 (+ main_~x~0 main_~j~0)) (.cse2 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= .cse2 .cse0) (<= .cse0 .cse2))) [2020-09-04 17:49:59,027 INFO L264 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (let ((.cse0 (+ |main_#t~post2| main_~j~0)) (.cse2 (+ main_~x~0 main_~j~0)) (.cse1 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse2) (<= .cse1 .cse0) (<= .cse2 .cse1))) [2020-09-04 17:49:59,027 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (let ((.cse1 (+ main_~y~0 main_~i~0)) (.cse0 (+ main_~x~0 main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= main_~i~0 main_~x~0) (<= main_~x~0 main_~i~0))) [2020-09-04 17:49:59,028 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0 1)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0)) (.cse2 (+ |main_#t~post2| main_~j~0))) (and (<= .cse0 .cse1) (<= .cse2 .cse0) (<= .cse1 .cse0) (<= .cse0 .cse2))) [2020-09-04 17:49:59,028 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-09-04 17:49:59,028 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-09-04 17:49:59,028 INFO L271 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: true [2020-09-04 17:49:59,028 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-09-04 17:49:59,029 INFO L271 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: true [2020-09-04 17:49:59,029 INFO L271 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: true [2020-09-04 17:49:59,029 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 13 31) the Hoare annotation is: true [2020-09-04 17:49:59,029 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 31) the Hoare annotation is: true [2020-09-04 17:49:59,030 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (let ((.cse5 (+ main_~y~0 main_~z~0))) (let ((.cse0 (<= .cse5 0)) (.cse3 (<= 0 .cse5)) (.cse1 (+ main_~x~0 main_~j~0))) (or (let ((.cse2 (+ main_~y~0 main_~i~0))) (and .cse0 (<= .cse1 .cse2) (<= .cse2 .cse1) (<= main_~i~0 main_~x~0) .cse3 (<= main_~x~0 main_~i~0))) (let ((.cse4 (+ main_~y~0 main_~i~0 main_~z~0))) (and .cse0 .cse3 (<= .cse4 .cse1) (<= .cse1 .cse4)))))) [2020-09-04 17:49:59,030 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0 1)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-09-04 17:49:59,030 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (<= main_~i~0 main_~x~0) (<= main_~x~0 main_~i~0)) [2020-09-04 17:49:59,031 INFO L264 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (let ((.cse1 (+ main_~x~0 main_~j~0)) (.cse0 (+ main_~y~0 main_~i~0 main_~z~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2020-09-04 17:49:59,031 INFO L264 CegarLoopResult]: At program point L22-3(lines 13 31) the Hoare annotation is: (let ((.cse4 (< 0 (+ main_~y~0 main_~z~0 1))) (.cse5 (+ main_~x~0 main_~j~0)) (.cse7 (<= (+ main_~y~0 main_~z~0) 0)) (.cse8 (+ main_~y~0 main_~i~0 main_~z~0))) (let ((.cse0 (or .cse7 (<= .cse8 main_~j~0))) (.cse2 (<= .cse5 .cse8)) (.cse1 (<= .cse8 .cse5)) (.cse3 (or (<= main_~j~0 .cse8) .cse4))) (or (and .cse0 .cse1 .cse2 .cse3) (let ((.cse6 (+ main_~y~0 main_~i~0))) (and .cse0 (or .cse4 .cse2) (<= .cse5 .cse6) (<= .cse6 .cse5) (or .cse7 .cse1) (<= main_~i~0 main_~x~0) (<= main_~x~0 main_~i~0) .cse3))))) [2020-09-04 17:49:59,031 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-09-04 17:49:59,031 INFO L271 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: true [2020-09-04 17:49:59,032 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-09-04 17:49:59,032 INFO L271 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: true [2020-09-04 17:49:59,032 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-09-04 17:49:59,032 INFO L271 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: true [2020-09-04 17:49:59,032 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-04 17:49:59,033 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: true [2020-09-04 17:49:59,033 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:49:59,033 INFO L264 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 17:49:59,033 INFO L271 CegarLoopResult]: At program point L7-2(lines 6 11) the Hoare annotation is: true [2020-09-04 17:49:59,034 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:49:59,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 05:49:59 BoogieIcfgContainer [2020-09-04 17:49:59,060 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 17:49:59,065 INFO L168 Benchmark]: Toolchain (without parser) took 3147.65 ms. Allocated memory was 147.3 MB in the beginning and 232.8 MB in the end (delta: 85.5 MB). Free memory was 103.1 MB in the beginning and 86.8 MB in the end (delta: 16.3 MB). Peak memory consumption was 101.7 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:59,066 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 147.3 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 17:49:59,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.19 ms. Allocated memory is still 147.3 MB. Free memory was 102.9 MB in the beginning and 93.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:59,068 INFO L168 Benchmark]: Boogie Preprocessor took 122.01 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 93.3 MB in the beginning and 182.2 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:59,069 INFO L168 Benchmark]: RCFGBuilder took 354.55 ms. Allocated memory is still 203.9 MB. Free memory was 182.2 MB in the beginning and 168.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:59,070 INFO L168 Benchmark]: TraceAbstraction took 2348.24 ms. Allocated memory was 203.9 MB in the beginning and 232.8 MB in the end (delta: 28.8 MB). Free memory was 168.2 MB in the beginning and 86.8 MB in the end (delta: 81.4 MB). Peak memory consumption was 110.2 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:59,075 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 147.3 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 309.19 ms. Allocated memory is still 147.3 MB. Free memory was 102.9 MB in the beginning and 93.3 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.01 ms. Allocated memory was 147.3 MB in the beginning and 203.9 MB in the end (delta: 56.6 MB). Free memory was 93.3 MB in the beginning and 182.2 MB in the end (delta: -88.8 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 354.55 ms. Allocated memory is still 203.9 MB. Free memory was 182.2 MB in the beginning and 168.2 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2348.24 ms. Allocated memory was 203.9 MB in the beginning and 232.8 MB in the end (delta: 28.8 MB). Free memory was 168.2 MB in the beginning and 86.8 MB in the end (delta: 81.4 MB). Peak memory consumption was 110.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 22]: Loop Invariant Derived loop invariant: y + i + z <= x + j && x + j <= y + i + z - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 89 SDtfs, 34 SDslu, 249 SDs, 0 SdLazy, 234 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 40 LocationsWithAnnotation, 52 PreInvPairs, 68 NumberOfFragments, 456 HoareAnnotationTreeSize, 52 FomulaSimplifications, 159 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 40 FomulaSimplificationsInter, 5 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...