/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-regression/test_malloc-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 03:53:13,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 03:53:13,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 03:53:13,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 03:53:13,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 03:53:13,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 03:53:13,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 03:53:13,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 03:53:13,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 03:53:13,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 03:53:13,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 03:53:13,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2020-12-22 03:53:13,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 03:53:13,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 03:53:13,164 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 03:53:13,165 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 03:53:13,229 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 03:53:13,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 03:53:13,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 03:53:13,234 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 03:53:13,234 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 03:53:13,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 03:53:13,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 03:53:13,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 03:53:13,235 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 03:53:13,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 03:53:13,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 03:53:13,237 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 03:53:13,237 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 03:53:13,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 03:53:13,238 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 03:53:13,238 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 03:53:13,238 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 03:53:13,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 03:53:13,239 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 03:53:13,239 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 03:53:13,239 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 03:53:13,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 03:53:13,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 03:53:13,240 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 03:53:13,240 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 03:53:13,241 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 03:53:13,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 03:53:13,693 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 03:53:13,696 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 03:53:13,698 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 03:53:13,699 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 03:53:13,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test_malloc-1.i [2020-12-22 03:53:13,793 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17a0c9e7d/cded7a51e3ae4862a45782b78c9a3d0e/FLAGc504b7aee [2020-12-22 03:53:14,478 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 03:53:14,479 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_malloc-1.i [2020-12-22 03:53:14,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17a0c9e7d/cded7a51e3ae4862a45782b78c9a3d0e/FLAGc504b7aee [2020-12-22 03:53:14,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17a0c9e7d/cded7a51e3ae4862a45782b78c9a3d0e [2020-12-22 03:53:14,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 03:53:14,800 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 03:53:14,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 03:53:14,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 03:53:14,809 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 03:53:14,811 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:53:14" (1/1) ... [2020-12-22 03:53:14,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23e67614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:14, skipping insertion in model container [2020-12-22 03:53:14,813 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:53:14" (1/1) ... [2020-12-22 03:53:14,823 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 03:53:14,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 03:53:15,030 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_malloc-1.i[813,826] [2020-12-22 03:53:15,224 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:53:15,235 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 03:53:15,250 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test_malloc-1.i[813,826] [2020-12-22 03:53:15,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 03:53:15,344 INFO L208 MainTranslator]: Completed translation [2020-12-22 03:53:15,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:15 WrapperNode [2020-12-22 03:53:15,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 03:53:15,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 03:53:15,347 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 03:53:15,347 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 03:53:15,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:15" (1/1) ... [2020-12-22 03:53:15,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:15" (1/1) ... [2020-12-22 03:53:15,389 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 03:53:15,390 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 03:53:15,390 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 03:53:15,390 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 03:53:15,399 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:15" (1/1) ... [2020-12-22 03:53:15,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:15" (1/1) ... [2020-12-22 03:53:15,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:15" (1/1) ... [2020-12-22 03:53:15,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:15" (1/1) ... [2020-12-22 03:53:15,415 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:15" (1/1) ... [2020-12-22 03:53:15,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:15" (1/1) ... [2020-12-22 03:53:15,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:15" (1/1) ... [2020-12-22 03:53:15,431 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 03:53:15,433 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 03:53:15,433 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 03:53:15,433 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 03:53:15,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 03:53:15,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-22 03:53:15,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 03:53:15,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 03:53:15,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 03:53:15,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 03:53:15,991 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 03:53:16,001 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-22 03:53:16,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:53:16 BoogieIcfgContainer [2020-12-22 03:53:16,006 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 03:53:16,011 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 03:53:16,011 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 03:53:16,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 03:53:16,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:53:14" (1/3) ... [2020-12-22 03:53:16,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391feaf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:53:16, skipping insertion in model container [2020-12-22 03:53:16,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:53:15" (2/3) ... [2020-12-22 03:53:16,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@391feaf6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:53:16, skipping insertion in model container [2020-12-22 03:53:16,023 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:53:16" (3/3) ... [2020-12-22 03:53:16,026 INFO L111 eAbstractionObserver]: Analyzing ICFG test_malloc-1.i [2020-12-22 03:53:16,042 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 03:53:16,057 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-22 03:53:16,077 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-22 03:53:16,104 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 03:53:16,105 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 03:53:16,105 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 03:53:16,105 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 03:53:16,105 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 03:53:16,105 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 03:53:16,106 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 03:53:16,106 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 03:53:16,121 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-12-22 03:53:16,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-22 03:53:16,126 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 03:53:16,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-22 03:53:16,128 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 03:53:16,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 03:53:16,134 INFO L82 PathProgramCache]: Analyzing trace with hash 28693796, now seen corresponding path program 1 times [2020-12-22 03:53:16,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 03:53:16,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114951998] [2020-12-22 03:53:16,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 03:53:16,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 03:53:16,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 03:53:16,360 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114951998] [2020-12-22 03:53:16,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 03:53:16,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 03:53:16,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772277364] [2020-12-22 03:53:16,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 03:53:16,368 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 03:53:16,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 03:53:16,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 03:53:16,386 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-12-22 03:53:16,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 03:53:16,426 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-12-22 03:53:16,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 03:53:16,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-22 03:53:16,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 03:53:16,435 INFO L225 Difference]: With dead ends: 18 [2020-12-22 03:53:16,435 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 03:53:16,439 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 03:53:16,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 03:53:16,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 03:53:16,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 03:53:16,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 03:53:16,468 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-12-22 03:53:16,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 03:53:16,469 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 03:53:16,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 03:53:16,469 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 03:53:16,469 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 03:53:16,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 03:53:16,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 03:53:16,492 INFO L189 CegarLoopUtils]: For program point L385(lines 385 387) no Hoare annotation was computed. [2020-12-22 03:53:16,492 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 03:53:16,493 INFO L185 CegarLoopUtils]: At program point L385-1(lines 385 387) the Hoare annotation is: (not (= ULTIMATE.start_main_~p1~0.base ULTIMATE.start_main_~p2~0.base)) [2020-12-22 03:53:16,493 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 03:53:16,493 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 03:53:16,493 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 03:53:16,494 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2020-12-22 03:53:16,494 INFO L189 CegarLoopUtils]: For program point L15(line 15) no Hoare annotation was computed. [2020-12-22 03:53:16,494 INFO L189 CegarLoopUtils]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-12-22 03:53:16,494 INFO L185 CegarLoopUtils]: At program point L388(lines 382 389) the Hoare annotation is: (not (= ULTIMATE.start_main_~p1~0.base ULTIMATE.start_main_~p2~0.base)) [2020-12-22 03:53:16,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 03:53:16 BoogieIcfgContainer [2020-12-22 03:53:16,519 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 03:53:16,520 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 03:53:16,520 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 03:53:16,521 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 03:53:16,521 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:53:16" (3/4) ... [2020-12-22 03:53:16,525 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 03:53:16,538 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-22 03:53:16,538 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-22 03:53:16,539 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 03:53:16,539 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 03:53:16,579 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-regression/test_malloc-1.i-witness.graphml [2020-12-22 03:53:16,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 03:53:16,582 INFO L168 Benchmark]: Toolchain (without parser) took 1781.38 ms. Allocated memory is still 170.9 MB. Free memory was 145.6 MB in the beginning and 118.2 MB in the end (delta: 27.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:53:16,583 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 170.9 MB. Free memory is still 146.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 03:53:16,584 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.72 ms. Allocated memory is still 170.9 MB. Free memory was 145.3 MB in the beginning and 123.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:53:16,585 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.87 ms. Allocated memory is still 170.9 MB. Free memory was 123.9 MB in the beginning and 122.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:53:16,586 INFO L168 Benchmark]: Boogie Preprocessor took 41.78 ms. Allocated memory is still 170.9 MB. Free memory was 122.1 MB in the beginning and 121.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:53:16,586 INFO L168 Benchmark]: RCFGBuilder took 573.74 ms. Allocated memory is still 170.9 MB. Free memory was 121.1 MB in the beginning and 142.7 MB in the end (delta: -21.6 MB). Peak memory consumption was 4.9 MB. Max. memory is 8.0 GB. [2020-12-22 03:53:16,587 INFO L168 Benchmark]: TraceAbstraction took 508.44 ms. Allocated memory is still 170.9 MB. Free memory was 142.4 MB in the beginning and 120.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 03:53:16,588 INFO L168 Benchmark]: Witness Printer took 59.70 ms. Allocated memory is still 170.9 MB. Free memory was 120.3 MB in the beginning and 118.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 03:53:16,592 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 170.9 MB. Free memory is still 146.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 540.72 ms. Allocated memory is still 170.9 MB. Free memory was 145.3 MB in the beginning and 123.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 42.87 ms. Allocated memory is still 170.9 MB. Free memory was 123.9 MB in the beginning and 122.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.78 ms. Allocated memory is still 170.9 MB. Free memory was 122.1 MB in the beginning and 121.1 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 573.74 ms. Allocated memory is still 170.9 MB. Free memory was 121.1 MB in the beginning and 142.7 MB in the end (delta: -21.6 MB). Peak memory consumption was 4.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 508.44 ms. Allocated memory is still 170.9 MB. Free memory was 142.4 MB in the beginning and 120.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Witness Printer took 59.70 ms. Allocated memory is still 170.9 MB. Free memory was 120.3 MB in the beginning and 118.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 15]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 382]: Loop Invariant Derived loop invariant: !(p1 == p2) - InvariantResult [Line: 385]: Loop Invariant Derived loop invariant: !(p1 == p2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 10 SDslu, 6 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 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...