/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/ldv-regression/oomInt.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 16:39:49,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 16:39:49,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 16:39:49,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 16:39:49,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 16:39:49,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 16:39:49,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 16:39:49,459 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 16:39:49,463 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 16:39:49,468 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 16:39:49,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 16:39:49,473 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 16:39:49,473 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 16:39:49,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 16:39:49,482 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 16:39:49,484 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 16:39:49,487 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 16:39:49,489 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 16:39:49,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 16:39:49,504 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 16:39:49,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 16:39:49,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 16:39:49,510 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 16:39:49,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 16:39:49,516 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 16:39:49,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 16:39:49,534 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 16:39:49,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 16:39:49,538 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 16:39:49,562 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 16:39:49,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 16:39:49,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 16:39:49,564 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 16:39:49,565 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 16:39:49,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 16:39:49,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 16:39:49,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 16:39:49,566 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 16:39:49,566 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 16:39:49,566 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 16:39:49,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 16:39:49,566 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 16:39:49,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 16:39:49,567 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 16:39:49,567 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 16:39:49,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 16:39:49,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 16:39:49,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 16:39:49,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 16:39:49,568 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 16:39:49,569 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 16:39:49,569 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 16:39:50,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 16:39:50,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 16:39:50,076 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 16:39:50,079 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 16:39:50,080 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 16:39:50,081 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/oomInt.c_1.i [2020-09-04 16:39:50,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89b4c9a96/0dc62b828daf4bf5b9f1f1b137c5b661/FLAGdf1515c9f [2020-09-04 16:39:50,829 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 16:39:50,830 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/oomInt.c_1.i [2020-09-04 16:39:50,840 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89b4c9a96/0dc62b828daf4bf5b9f1f1b137c5b661/FLAGdf1515c9f [2020-09-04 16:39:51,175 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/89b4c9a96/0dc62b828daf4bf5b9f1f1b137c5b661 [2020-09-04 16:39:51,195 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 16:39:51,198 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 16:39:51,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 16:39:51,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 16:39:51,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 16:39:51,207 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:39:51" (1/1) ... [2020-09-04 16:39:51,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b1f13a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:51, skipping insertion in model container [2020-09-04 16:39:51,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 04:39:51" (1/1) ... [2020-09-04 16:39:51,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 16:39:51,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 16:39:51,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:39:51,489 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 16:39:51,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 16:39:51,528 INFO L208 MainTranslator]: Completed translation [2020-09-04 16:39:51,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:51 WrapperNode [2020-09-04 16:39:51,529 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 16:39:51,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 16:39:51,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 16:39:51,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 16:39:51,546 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:51" (1/1) ... [2020-09-04 16:39:51,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:51" (1/1) ... [2020-09-04 16:39:51,552 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:51" (1/1) ... [2020-09-04 16:39:51,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:51" (1/1) ... [2020-09-04 16:39:51,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:51" (1/1) ... [2020-09-04 16:39:51,560 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:51" (1/1) ... [2020-09-04 16:39:51,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:51" (1/1) ... [2020-09-04 16:39:51,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 16:39:51,563 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 16:39:51,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 16:39:51,564 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 16:39:51,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:51" (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 16:39:51,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 16:39:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 16:39:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-04 16:39:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure abs_int [2020-09-04 16:39:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure firstFunction [2020-09-04 16:39:51,743 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 16:39:51,743 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 16:39:51,743 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-04 16:39:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure abs_int [2020-09-04 16:39:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure firstFunction [2020-09-04 16:39:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 16:39:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 16:39:51,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 16:39:51,978 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 16:39:51,979 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 16:39:51,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:39:51 BoogieIcfgContainer [2020-09-04 16:39:51,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 16:39:51,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 16:39:51,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 16:39:51,993 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 16:39:51,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 04:39:51" (1/3) ... [2020-09-04 16:39:51,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c325411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:39:51, skipping insertion in model container [2020-09-04 16:39:51,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 04:39:51" (2/3) ... [2020-09-04 16:39:51,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c325411 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 04:39:51, skipping insertion in model container [2020-09-04 16:39:51,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 04:39:51" (3/3) ... [2020-09-04 16:39:51,999 INFO L109 eAbstractionObserver]: Analyzing ICFG oomInt.c_1.i [2020-09-04 16:39:52,016 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 16:39:52,030 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 16:39:52,063 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 16:39:52,127 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 16:39:52,127 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 16:39:52,127 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 16:39:52,127 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 16:39:52,127 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 16:39:52,128 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 16:39:52,128 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 16:39:52,128 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 16:39:52,175 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2020-09-04 16:39:52,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-04 16:39:52,196 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:39:52,197 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:39:52,198 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:39:52,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:39:52,209 INFO L82 PathProgramCache]: Analyzing trace with hash -874370234, now seen corresponding path program 1 times [2020-09-04 16:39:52,225 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:39:52,226 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [618871595] [2020-09-04 16:39:52,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:39:52,318 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:39:52,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:39:52,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:39:52,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:39:52,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 16:39:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:39:52,662 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 16:39:52,666 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [618871595] [2020-09-04 16:39:52,668 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:39:52,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 16:39:52,670 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [783123018] [2020-09-04 16:39:52,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 16:39:52,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:39:52,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 16:39:52,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:39:52,700 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 7 states. [2020-09-04 16:39:52,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:39:52,981 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2020-09-04 16:39:52,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 16:39:52,984 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-09-04 16:39:52,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:39:53,001 INFO L225 Difference]: With dead ends: 49 [2020-09-04 16:39:53,002 INFO L226 Difference]: Without dead ends: 19 [2020-09-04 16:39:53,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-04 16:39:53,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-09-04 16:39:53,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-09-04 16:39:53,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-09-04 16:39:53,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-09-04 16:39:53,075 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 18 [2020-09-04 16:39:53,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:39:53,075 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-09-04 16:39:53,076 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 16:39:53,076 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-09-04 16:39:53,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-04 16:39:53,077 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 16:39:53,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 16:39:53,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 16:39:53,078 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 16:39:53,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 16:39:53,079 INFO L82 PathProgramCache]: Analyzing trace with hash -587338874, now seen corresponding path program 1 times [2020-09-04 16:39:53,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 16:39:53,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [544663397] [2020-09-04 16:39:53,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 16:39:53,083 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 16:39:53,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:39:53,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 16:39:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:39:53,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-04 16:39:53,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 16:39:53,218 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 16:39:53,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [544663397] [2020-09-04 16:39:53,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 16:39:53,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 16:39:53,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798769497] [2020-09-04 16:39:53,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 16:39:53,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 16:39:53,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 16:39:53,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 16:39:53,223 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 5 states. [2020-09-04 16:39:53,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 16:39:53,282 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-09-04 16:39:53,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 16:39:53,283 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-04 16:39:53,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 16:39:53,284 INFO L225 Difference]: With dead ends: 19 [2020-09-04 16:39:53,284 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 16:39:53,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-04 16:39:53,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 16:39:53,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 16:39:53,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 16:39:53,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 16:39:53,288 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-04 16:39:53,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 16:39:53,288 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 16:39:53,288 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 16:39:53,289 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 16:39:53,289 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 16:39:53,289 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 16:39:53,292 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 16:39:53,632 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 16:39:53,633 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-09-04 16:39:53,633 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 16:39:53,633 INFO L271 CegarLoopResult]: At program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) the Hoare annotation is: true [2020-09-04 16:39:53,633 INFO L271 CegarLoopResult]: At program point __blast_assertEXIT(lines 5 8) the Hoare annotation is: true [2020-09-04 16:39:53,634 INFO L271 CegarLoopResult]: At program point __blast_assertFINAL(lines 5 8) the Hoare annotation is: true [2020-09-04 16:39:53,634 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 5 8) the Hoare annotation is: true [2020-09-04 16:39:53,634 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 16:39:53,634 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 16:39:53,634 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 16:39:53,634 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 16:39:53,635 INFO L264 CegarLoopResult]: At program point L17(lines 17 23) the Hoare annotation is: (or (= |abs_int_#in~i| abs_int_~i) (= (+ abs_int_~i 3) 0)) [2020-09-04 16:39:53,635 INFO L264 CegarLoopResult]: At program point abs_intEXIT(lines 15 24) the Hoare annotation is: (let ((.cse0 (or (= |abs_int_#in~i| abs_int_~i) (= (+ abs_int_~i 3) 0)))) (or (and .cse0 (<= 3 |abs_int_#res|)) (and (not (= (+ |abs_int_#in~i| 3) 0)) .cse0))) [2020-09-04 16:39:53,635 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (not (= (+ |abs_int_#in~i| 3) 0)) (or (= |abs_int_#in~i| abs_int_~i) (= (+ abs_int_~i 3) 0))) [2020-09-04 16:39:53,635 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (or (= |abs_int_#in~i| abs_int_~i) (= (+ abs_int_~i 3) 0)) [2020-09-04 16:39:53,636 INFO L271 CegarLoopResult]: At program point abs_intENTRY(lines 15 24) the Hoare annotation is: true [2020-09-04 16:39:53,636 INFO L264 CegarLoopResult]: At program point abs_intFINAL(lines 15 24) the Hoare annotation is: (let ((.cse0 (or (= |abs_int_#in~i| abs_int_~i) (= (+ abs_int_~i 3) 0)))) (or (and .cse0 (<= 3 |abs_int_#res|)) (and (not (= (+ |abs_int_#in~i| 3) 0)) .cse0))) [2020-09-04 16:39:53,636 INFO L264 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (<= 1 ~p~0) [2020-09-04 16:39:53,636 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (and (= ~p~0 |old(~p~0)|) (<= 1 |firstFunction_#t~ret0|)) [2020-09-04 16:39:53,636 INFO L264 CegarLoopResult]: At program point firstFunctionENTRY(lines 26 30) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-09-04 16:39:53,637 INFO L264 CegarLoopResult]: At program point L28-1(line 28) the Hoare annotation is: (and (= ~p~0 |old(~p~0)|) (<= 1 |firstFunction_#t~ret0|)) [2020-09-04 16:39:53,637 INFO L264 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: false [2020-09-04 16:39:53,637 INFO L264 CegarLoopResult]: At program point L28-2(line 28) the Hoare annotation is: (and (<= 1 |firstFunction_#t~ret0|) (<= 1 ~p~0)) [2020-09-04 16:39:53,637 INFO L271 CegarLoopResult]: At program point L29-3(lines 26 30) the Hoare annotation is: true [2020-09-04 16:39:53,637 INFO L271 CegarLoopResult]: At program point firstFunctionEXIT(lines 26 30) the Hoare annotation is: true [2020-09-04 16:39:53,638 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 32 35) the Hoare annotation is: (= ~p~0 |old(~p~0)|) [2020-09-04 16:39:53,638 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 32 35) the Hoare annotation is: true [2020-09-04 16:39:53,638 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 32 35) the Hoare annotation is: true [2020-09-04 16:39:53,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 04:39:53 BoogieIcfgContainer [2020-09-04 16:39:53,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 16:39:53,670 INFO L168 Benchmark]: Toolchain (without parser) took 2470.92 ms. Allocated memory was 139.5 MB in the beginning and 235.4 MB in the end (delta: 95.9 MB). Free memory was 104.4 MB in the beginning and 204.0 MB in the end (delta: -99.5 MB). Peak memory consumption was 84.2 MB. Max. memory is 7.1 GB. [2020-09-04 16:39:53,671 INFO L168 Benchmark]: CDTParser took 0.44 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-04 16:39:53,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.65 ms. Allocated memory is still 139.5 MB. Free memory was 104.0 MB in the beginning and 94.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2020-09-04 16:39:53,674 INFO L168 Benchmark]: Boogie Preprocessor took 33.36 ms. Allocated memory is still 139.5 MB. Free memory was 94.8 MB in the beginning and 93.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-04 16:39:53,675 INFO L168 Benchmark]: RCFGBuilder took 422.77 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 93.2 MB in the beginning and 170.4 MB in the end (delta: -77.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-09-04 16:39:53,676 INFO L168 Benchmark]: TraceAbstraction took 1677.91 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 169.5 MB in the beginning and 204.0 MB in the end (delta: -34.5 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2020-09-04 16:39:53,681 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 ms. Allocated memory is still 139.5 MB. Free memory was 122.0 MB in the beginning and 121.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 329.65 ms. Allocated memory is still 139.5 MB. Free memory was 104.0 MB in the beginning and 94.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.36 ms. Allocated memory is still 139.5 MB. Free memory was 94.8 MB in the beginning and 93.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 422.77 ms. Allocated memory was 139.5 MB in the beginning and 202.9 MB in the end (delta: 63.4 MB). Free memory was 93.2 MB in the beginning and 170.4 MB in the end (delta: -77.3 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1677.91 ms. Allocated memory was 202.9 MB in the beginning and 235.4 MB in the end (delta: 32.5 MB). Free memory was 169.5 MB in the beginning and 204.0 MB in the end (delta: -34.5 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 7]: 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: 5]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 15]: Procedure Contract for abs_int Derived contract for procedure abs_int: ((\old(i) == i || i + 3 == 0) && 3 <= \result) || (!(\old(i) + 3 == 0) && (\old(i) == i || i + 3 == 0)) - ProcedureContractResult [Line: 26]: Procedure Contract for firstFunction Derived contract for procedure firstFunction: 1 - ProcedureContractResult [Line: 32]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 26 SDslu, 73 SDs, 0 SdLazy, 63 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 32 PreInvPairs, 50 NumberOfFragments, 143 HoareAnnotationTreeSize, 32 FomulaSimplifications, 24 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 0.2s 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...