/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/structure_assignment.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 22:05:55,954 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 22:05:55,960 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 22:05:56,010 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 22:05:56,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 22:05:56,022 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 22:05:56,024 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 22:05:56,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 22:05:56,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 22:05:56,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 22:05:56,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 22:05:56,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 22:05:56,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 22:05:56,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 22:05:56,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 22:05:56,040 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 22:05:56,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 22:05:56,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 22:05:56,045 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 22:05:56,047 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 22:05:56,049 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 22:05:56,051 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 22:05:56,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 22:05:56,054 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 22:05:56,057 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 22:05:56,068 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 22:05:56,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 22:05:56,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 22:05:56,072 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 22:05:56,086 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 22:05:56,087 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 22:05:56,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 22:05:56,089 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 22:05:56,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 22:05:56,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 22:05:56,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 22:05:56,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 22:05:56,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 22:05:56,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 22:05:56,090 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 22:05:56,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 22:05:56,091 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 22:05:56,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 22:05:56,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 22:05:56,092 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 22:05:56,092 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 22:05:56,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 22:05:56,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 22:05:56,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 22:05:56,093 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 22:05:56,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 22:05:56,093 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 22:05:56,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 22:05:56,582 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 22:05:56,588 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 22:05:56,590 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 22:05:56,591 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 22:05:56,592 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/structure_assignment.i [2020-09-04 22:05:56,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50168fa15/4c849a54461e459d933cbf830e22ced3/FLAG3babd00b7 [2020-09-04 22:05:57,335 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 22:05:57,336 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/structure_assignment.i [2020-09-04 22:05:57,346 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50168fa15/4c849a54461e459d933cbf830e22ced3/FLAG3babd00b7 [2020-09-04 22:05:57,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/50168fa15/4c849a54461e459d933cbf830e22ced3 [2020-09-04 22:05:57,732 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 22:05:57,734 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 22:05:57,736 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 22:05:57,736 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 22:05:57,741 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 22:05:57,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:05:57" (1/1) ... [2020-09-04 22:05:57,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ef001ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:57, skipping insertion in model container [2020-09-04 22:05:57,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 10:05:57" (1/1) ... [2020-09-04 22:05:57,758 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 22:05:57,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 22:05:58,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:05:58,010 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 22:05:58,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 22:05:58,069 INFO L208 MainTranslator]: Completed translation [2020-09-04 22:05:58,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:58 WrapperNode [2020-09-04 22:05:58,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 22:05:58,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 22:05:58,071 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 22:05:58,071 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 22:05:58,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:58" (1/1) ... [2020-09-04 22:05:58,183 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:58" (1/1) ... [2020-09-04 22:05:58,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:58" (1/1) ... [2020-09-04 22:05:58,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:58" (1/1) ... [2020-09-04 22:05:58,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:58" (1/1) ... [2020-09-04 22:05:58,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:58" (1/1) ... [2020-09-04 22:05:58,213 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:58" (1/1) ... [2020-09-04 22:05:58,215 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 22:05:58,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 22:05:58,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 22:05:58,216 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 22:05:58,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:58" (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 22:05:58,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 22:05:58,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 22:05:58,319 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-09-04 22:05:58,319 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 22:05:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 22:05:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-09-04 22:05:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 22:05:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 22:05:58,320 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 22:05:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 22:05:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 22:05:58,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 22:05:58,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 22:05:58,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 22:05:58,599 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 22:05:58,600 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 22:05:58,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:05:58 BoogieIcfgContainer [2020-09-04 22:05:58,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 22:05:58,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 22:05:58,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 22:05:58,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 22:05:58,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 10:05:57" (1/3) ... [2020-09-04 22:05:58,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440e1f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:05:58, skipping insertion in model container [2020-09-04 22:05:58,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 10:05:58" (2/3) ... [2020-09-04 22:05:58,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@440e1f88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 10:05:58, skipping insertion in model container [2020-09-04 22:05:58,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 10:05:58" (3/3) ... [2020-09-04 22:05:58,620 INFO L109 eAbstractionObserver]: Analyzing ICFG structure_assignment.i [2020-09-04 22:05:58,637 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 22:05:58,651 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 22:05:58,679 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 22:05:58,716 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 22:05:58,716 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 22:05:58,716 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 22:05:58,716 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 22:05:58,717 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 22:05:58,717 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 22:05:58,717 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 22:05:58,717 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 22:05:58,738 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-09-04 22:05:58,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-09-04 22:05:58,751 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 22:05:58,752 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] [2020-09-04 22:05:58,753 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 22:05:58,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 22:05:58,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1759541196, now seen corresponding path program 1 times [2020-09-04 22:05:58,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 22:05:58,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1444919468] [2020-09-04 22:05:58,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 22:05:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:05:59,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 22:05:59,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 22:05:59,154 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 22:05:59,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1444919468] [2020-09-04 22:05:59,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 22:05:59,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 22:05:59,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984276866] [2020-09-04 22:05:59,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 22:05:59,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 22:05:59,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 22:05:59,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-04 22:05:59,193 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 7 states. [2020-09-04 22:05:59,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 22:05:59,438 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2020-09-04 22:05:59,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 22:05:59,441 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2020-09-04 22:05:59,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 22:05:59,453 INFO L225 Difference]: With dead ends: 44 [2020-09-04 22:05:59,453 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 22:05:59,459 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-04 22:05:59,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 22:05:59,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 22:05:59,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 22:05:59,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 22:05:59,503 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2020-09-04 22:05:59,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 22:05:59,504 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 22:05:59,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 22:05:59,505 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 22:05:59,505 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 22:05:59,505 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 22:05:59,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 22:05:59,681 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 22:05:59,681 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-09-04 22:05:59,681 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 22:05:59,682 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-04 22:05:59,682 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 22:05:59,682 INFO L271 CegarLoopResult]: At program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) the Hoare annotation is: true [2020-09-04 22:05:59,683 INFO L271 CegarLoopResult]: At program point __blast_assertEXIT(lines 7 10) the Hoare annotation is: true [2020-09-04 22:05:59,683 INFO L271 CegarLoopResult]: At program point __blast_assertFINAL(lines 7 10) the Hoare annotation is: true [2020-09-04 22:05:59,683 INFO L271 CegarLoopResult]: At program point __blast_assertENTRY(lines 7 10) the Hoare annotation is: true [2020-09-04 22:05:59,683 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 22:05:59,684 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 22:05:59,684 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 22:05:59,684 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 22:05:59,684 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2) [2020-09-04 22:05:59,684 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 19 26) the Hoare annotation is: true [2020-09-04 22:05:59,685 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2) [2020-09-04 22:05:59,685 INFO L264 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: (and (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2) (= 2 |main_#t~mem1|)) [2020-09-04 22:05:59,685 INFO L271 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: true [2020-09-04 22:05:59,685 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (= 2 |main_#t~mem1|) [2020-09-04 22:05:59,686 INFO L271 CegarLoopResult]: At program point L21-1(line 21) the Hoare annotation is: true [2020-09-04 22:05:59,686 INFO L264 CegarLoopResult]: At program point L23-3(line 23) the Hoare annotation is: (and (= 2 |main_#t~mem1|) (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2)) [2020-09-04 22:05:59,686 INFO L264 CegarLoopResult]: At program point L21-2(line 21) the Hoare annotation is: (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2) [2020-09-04 22:05:59,686 INFO L264 CegarLoopResult]: At program point L23-4(line 23) the Hoare annotation is: (and (= 2 |main_#t~mem1|) (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2)) [2020-09-04 22:05:59,687 INFO L264 CegarLoopResult]: At program point L21-3(line 21) the Hoare annotation is: (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2) [2020-09-04 22:05:59,687 INFO L264 CegarLoopResult]: At program point L21-4(line 21) the Hoare annotation is: (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2) [2020-09-04 22:05:59,687 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 19 26) the Hoare annotation is: true [2020-09-04 22:05:59,687 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 19 26) the Hoare annotation is: (= |old(#valid)| |#valid|) [2020-09-04 22:05:59,688 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2) [2020-09-04 22:05:59,688 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (and (= 2 |main_#t~mem2|) (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2)) [2020-09-04 22:05:59,688 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (= (select (select |#memory_int| |main_~#good~0.base|) (+ |main_~#good~0.offset| 4)) 2) [2020-09-04 22:05:59,689 INFO L264 CegarLoopResult]: At program point L24-3(line 24) the Hoare annotation is: false [2020-09-04 22:05:59,689 INFO L264 CegarLoopResult]: At program point L22-1(line 22) the Hoare annotation is: (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2) [2020-09-04 22:05:59,690 INFO L264 CegarLoopResult]: At program point L24-4(line 24) the Hoare annotation is: (and (= 2 |main_#t~mem2|) (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2)) [2020-09-04 22:05:59,690 INFO L264 CegarLoopResult]: At program point L22-2(line 22) the Hoare annotation is: (= (select (select |#memory_int| |main_~#bad~0.base|) (+ |main_~#bad~0.offset| 4)) 2) [2020-09-04 22:05:59,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 10:05:59 BoogieIcfgContainer [2020-09-04 22:05:59,708 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 22:05:59,712 INFO L168 Benchmark]: Toolchain (without parser) took 1977.26 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 102.5 MB in the beginning and 114.5 MB in the end (delta: -12.1 MB). Peak memory consumption was 45.6 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:59,714 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 146.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 22:05:59,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.92 ms. Allocated memory is still 146.8 MB. Free memory was 102.3 MB in the beginning and 92.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:59,716 INFO L168 Benchmark]: Boogie Preprocessor took 144.67 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 92.4 MB in the beginning and 182.4 MB in the end (delta: -90.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:59,717 INFO L168 Benchmark]: RCFGBuilder took 392.35 ms. Allocated memory is still 204.5 MB. Free memory was 182.4 MB in the beginning and 168.1 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:59,718 INFO L168 Benchmark]: TraceAbstraction took 1098.74 ms. Allocated memory is still 204.5 MB. Free memory was 167.5 MB in the beginning and 114.5 MB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 MB. Max. memory is 7.1 GB. [2020-09-04 22:05:59,723 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 146.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 334.92 ms. Allocated memory is still 146.8 MB. Free memory was 102.3 MB in the beginning and 92.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.67 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 92.4 MB in the beginning and 182.4 MB in the end (delta: -90.0 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 392.35 ms. Allocated memory is still 204.5 MB. Free memory was 182.4 MB in the beginning and 168.1 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1098.74 ms. Allocated memory is still 204.5 MB. Free memory was 167.5 MB in the beginning and 114.5 MB in the end (delta: 52.9 MB). Peak memory consumption was 52.9 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: 7]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 19]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 11 SDslu, 67 SDs, 0 SdLazy, 59 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 34 LocationsWithAnnotation, 34 PreInvPairs, 44 NumberOfFragments, 179 HoareAnnotationTreeSize, 34 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 34 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 1660 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...