/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:29:28,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:29:28,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:29:28,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:29:28,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:29:28,135 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:29:28,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:29:28,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:29:28,144 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:29:28,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:29:28,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:29:28,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:29:28,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:29:28,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:29:28,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:29:28,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:29:28,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:29:28,164 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:29:28,166 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:29:28,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:29:28,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:29:28,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:29:28,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:29:28,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:29:28,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 13:29:28,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:29:28,199 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:29:28,201 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:29:28,202 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-04 13:29:28,246 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:29:28,246 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:29:28,249 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:29:28,249 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:29:28,249 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:29:28,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:29:28,250 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:29:28,250 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:29:28,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:29:28,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:29:28,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:29:28,252 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:29:28,252 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:29:28,252 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:29:28,253 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:29:28,253 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:29:28,253 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:29:28,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:29:28,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:29:28,254 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:29:28,254 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:29:28,254 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:29:28,254 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:29:28,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:29:28,255 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:29:28,255 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:29:28,255 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:29:28,255 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:29:28,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:29:28,256 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:29:28,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:29:28,726 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:29:28,730 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:29:28,732 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:29:28,732 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:29:28,733 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test17.c [2020-09-04 13:29:28,804 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eca2d3ad3/c480cf530b9d455b8f8205bf73c83eb1/FLAG70fae75bc [2020-09-04 13:29:29,356 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:29:29,357 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test17.c [2020-09-04 13:29:29,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eca2d3ad3/c480cf530b9d455b8f8205bf73c83eb1/FLAG70fae75bc [2020-09-04 13:29:29,652 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/eca2d3ad3/c480cf530b9d455b8f8205bf73c83eb1 [2020-09-04 13:29:29,665 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:29:29,667 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:29:29,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:29:29,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:29:29,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:29:29,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:29:29" (1/1) ... [2020-09-04 13:29:29,679 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c6c8a7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:29:29, skipping insertion in model container [2020-09-04 13:29:29,679 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:29:29" (1/1) ... [2020-09-04 13:29:29,689 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:29:29,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:29:29,917 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:29:29,924 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:29:29,938 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:29:29,965 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:29:29,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:29:29 WrapperNode [2020-09-04 13:29:29,966 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:29:29,967 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:29:29,967 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:29:29,967 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:29:29,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:29:29" (1/1) ... [2020-09-04 13:29:29,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:29:29" (1/1) ... [2020-09-04 13:29:29,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:29:29" (1/1) ... [2020-09-04 13:29:29,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:29:29" (1/1) ... [2020-09-04 13:29:30,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:29:29" (1/1) ... [2020-09-04 13:29:30,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:29:29" (1/1) ... [2020-09-04 13:29:30,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:29:29" (1/1) ... [2020-09-04 13:29:30,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:29:30,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:29:30,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:29:30,081 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:29:30,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:29:29" (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 13:29:30,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:29:30,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:29:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure equal [2020-09-04 13:29:30,169 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:29:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:29:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure equal [2020-09-04 13:29:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:29:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:29:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 13:29:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 13:29:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:29:30,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 13:29:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 13:29:30,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 13:29:30,411 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:29:30,411 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 13:29:30,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:29:30 BoogieIcfgContainer [2020-09-04 13:29:30,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:29:30,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:29:30,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:29:30,434 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:29:30,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:29:29" (1/3) ... [2020-09-04 13:29:30,435 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df78878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:29:30, skipping insertion in model container [2020-09-04 13:29:30,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:29:29" (2/3) ... [2020-09-04 13:29:30,447 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@df78878 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:29:30, skipping insertion in model container [2020-09-04 13:29:30,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:29:30" (3/3) ... [2020-09-04 13:29:30,450 INFO L109 eAbstractionObserver]: Analyzing ICFG test17.c [2020-09-04 13:29:30,463 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:29:30,472 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:29:30,495 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:29:30,526 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:29:30,527 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:29:30,527 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:29:30,527 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:29:30,527 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:29:30,527 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:29:30,527 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:29:30,528 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:29:30,548 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-09-04 13:29:30,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-04 13:29:30,554 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:29:30,555 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:29:30,556 INFO L427 AbstractCegarLoop]: === Iteration 1 === [equalErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:29:30,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:29:30,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1534444928, now seen corresponding path program 1 times [2020-09-04 13:29:30,576 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:29:30,577 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540310782] [2020-09-04 13:29:30,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:29:30,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:29:30,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:29:30,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:29:30,889 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 13:29:30,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540310782] [2020-09-04 13:29:30,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:29:30,892 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 13:29:30,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718354275] [2020-09-04 13:29:30,900 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:29:30,900 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:29:30,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:29:30,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:29:30,925 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 5 states. [2020-09-04 13:29:31,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:29:31,122 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2020-09-04 13:29:31,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 13:29:31,125 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2020-09-04 13:29:31,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:29:31,134 INFO L225 Difference]: With dead ends: 24 [2020-09-04 13:29:31,135 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:29:31,139 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:29:31,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:29:31,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:29:31,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:29:31,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:29:31,173 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-09-04 13:29:31,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:29:31,174 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:29:31,174 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:29:31,174 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:29:31,174 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:29:31,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:29:31,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:29:31,302 INFO L268 CegarLoopResult]: For program point equalEXIT(lines 4 12) no Hoare annotation was computed. [2020-09-04 13:29:31,303 INFO L271 CegarLoopResult]: At program point equalENTRY(lines 4 12) the Hoare annotation is: true [2020-09-04 13:29:31,303 INFO L268 CegarLoopResult]: For program point equalFINAL(lines 4 12) no Hoare annotation was computed. [2020-09-04 13:29:31,303 INFO L264 CegarLoopResult]: At program point L6(lines 4 12) the Hoare annotation is: (or (not (= |equal_#in~a.offset| |equal_#in~b.offset|)) (not (= |equal_#in~a.base| |equal_#in~b.base|))) [2020-09-04 13:29:31,304 INFO L268 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2020-09-04 13:29:31,304 INFO L268 CegarLoopResult]: For program point equalErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2020-09-04 13:29:31,304 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:29:31,304 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= ~b~0 |old(~b~0)|)) [2020-09-04 13:29:31,305 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:29:31,305 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:29:31,305 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 13:29:31,305 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:29:31,306 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:29:31,306 INFO L268 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-09-04 13:29:31,306 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 16 19) the Hoare annotation is: true [2020-09-04 13:29:31,306 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 16 19) no Hoare annotation was computed. [2020-09-04 13:29:31,306 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 16 19) no Hoare annotation was computed. [2020-09-04 13:29:31,343 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:29:31 BoogieIcfgContainer [2020-09-04 13:29:31,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:29:31,347 INFO L168 Benchmark]: Toolchain (without parser) took 1678.18 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 104.0 MB in the beginning and 125.6 MB in the end (delta: -21.6 MB). Peak memory consumption was 41.9 MB. Max. memory is 7.1 GB. [2020-09-04 13:29:31,350 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 13:29:31,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 297.97 ms. Allocated memory is still 140.0 MB. Free memory was 103.8 MB in the beginning and 94.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-09-04 13:29:31,354 INFO L168 Benchmark]: Boogie Preprocessor took 113.91 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 94.0 MB in the beginning and 182.5 MB in the end (delta: -88.5 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. [2020-09-04 13:29:31,356 INFO L168 Benchmark]: RCFGBuilder took 336.14 ms. Allocated memory is still 203.4 MB. Free memory was 182.5 MB in the beginning and 169.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. [2020-09-04 13:29:31,358 INFO L168 Benchmark]: TraceAbstraction took 913.33 ms. Allocated memory is still 203.4 MB. Free memory was 168.7 MB in the beginning and 125.6 MB in the end (delta: 43.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 7.1 GB. [2020-09-04 13:29:31,370 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 297.97 ms. Allocated memory is still 140.0 MB. Free memory was 103.8 MB in the beginning and 94.0 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.91 ms. Allocated memory was 140.0 MB in the beginning and 203.4 MB in the end (delta: 63.4 MB). Free memory was 94.0 MB in the beginning and 182.5 MB in the end (delta: -88.5 MB). Peak memory consumption was 13.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 336.14 ms. Allocated memory is still 203.4 MB. Free memory was 182.5 MB in the beginning and 169.4 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 913.33 ms. Allocated memory is still 203.4 MB. Free memory was 168.7 MB in the beginning and 125.6 MB in the end (delta: 43.2 MB). Peak memory consumption was 43.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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: 4]: Loop Invariant Derived loop invariant: !(a == b) || !(a == b) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.6s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 10 SDslu, 16 SDs, 0 SdLazy, 14 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 35 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 57 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 328 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...