/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-DerefFreeMemtrack-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/memsafety-ext3/derefAfterFree1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 05:46:54,751 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 05:46:54,755 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 05:46:54,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-01-07 05:46:54,825 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 05:46:54,829 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 05:46:54,835 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 05:46:54,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 05:46:54,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 05:46:54,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 05:46:54,853 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 05:46:54,859 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 05:46:54,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 05:46:54,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 05:46:54,870 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 05:46:54,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 05:46:54,900 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-07 05:46:54,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 05:46:54,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 05:46:54,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 05:46:54,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 05:46:54,921 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 05:46:54,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 05:46:54,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 05:46:54,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 05:46:54,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 05:46:54,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 05:46:54,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 05:46:54,933 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2021-01-07 05:46:54,997 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 05:46:54,997 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 05:46:54,999 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 05:46:54,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 05:46:55,000 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 05:46:55,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 05:46:55,000 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 05:46:55,000 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 05:46:55,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 05:46:55,001 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 05:46:55,001 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 05:46:55,001 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-01-07 05:46:55,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 05:46:55,002 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 05:46:55,002 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 05:46:55,002 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 05:46:55,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 05:46:55,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 05:46:55,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:46:55,004 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 05:46:55,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 05:46:55,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 05:46:55,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 05:46:55,004 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 05:46:55,005 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-bitabs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 05:46:55,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 05:46:55,516 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 05:46:55,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 05:46:55,520 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 05:46:55,521 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 05:46:55,522 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/derefAfterFree1.c [2021-01-07 05:46:55,615 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/325a17b15/91dd84d08cc44f98b83b524a3f0af5aa/FLAG8be908d99 [2021-01-07 05:46:56,499 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 05:46:56,500 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/derefAfterFree1.c [2021-01-07 05:46:56,509 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/325a17b15/91dd84d08cc44f98b83b524a3f0af5aa/FLAG8be908d99 [2021-01-07 05:46:56,824 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/325a17b15/91dd84d08cc44f98b83b524a3f0af5aa [2021-01-07 05:46:56,828 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 05:46:56,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 05:46:56,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 05:46:56,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 05:46:56,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 05:46:56,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:46:56" (1/1) ... [2021-01-07 05:46:56,842 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6989d17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:56, skipping insertion in model container [2021-01-07 05:46:56,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:46:56" (1/1) ... [2021-01-07 05:46:56,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 05:46:56,869 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],StructAccessExpression[IdentifierExpression[~p~0,],offset]]] [2021-01-07 05:46:57,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:46:57,082 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~p~0,],base],StructAccessExpression[IdentifierExpression[~p~0,],offset]]] [2021-01-07 05:46:57,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:46:57,119 INFO L208 MainTranslator]: Completed translation [2021-01-07 05:46:57,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:57 WrapperNode [2021-01-07 05:46:57,120 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 05:46:57,122 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 05:46:57,122 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 05:46:57,122 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 05:46:57,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:57" (1/1) ... [2021-01-07 05:46:57,142 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:57" (1/1) ... [2021-01-07 05:46:57,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 05:46:57,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 05:46:57,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 05:46:57,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 05:46:57,178 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:57" (1/1) ... [2021-01-07 05:46:57,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:57" (1/1) ... [2021-01-07 05:46:57,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:57" (1/1) ... [2021-01-07 05:46:57,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:57" (1/1) ... [2021-01-07 05:46:57,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:57" (1/1) ... [2021-01-07 05:46:57,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:57" (1/1) ... [2021-01-07 05:46:57,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:57" (1/1) ... [2021-01-07 05:46:57,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 05:46:57,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 05:46:57,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 05:46:57,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 05:46:57,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/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 [2021-01-07 05:46:57,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-07 05:46:57,326 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-01-07 05:46:57,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 05:46:57,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 05:46:57,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-07 05:46:57,567 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 05:46:57,567 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-01-07 05:46:57,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:57 BoogieIcfgContainer [2021-01-07 05:46:57,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 05:46:57,571 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 05:46:57,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 05:46:57,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 05:46:57,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 05:46:56" (1/3) ... [2021-01-07 05:46:57,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab95b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:46:57, skipping insertion in model container [2021-01-07 05:46:57,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:46:57" (2/3) ... [2021-01-07 05:46:57,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ab95b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:46:57, skipping insertion in model container [2021-01-07 05:46:57,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:57" (3/3) ... [2021-01-07 05:46:57,578 INFO L111 eAbstractionObserver]: Analyzing ICFG derefAfterFree1.c [2021-01-07 05:46:57,593 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 05:46:57,598 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-01-07 05:46:57,620 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-01-07 05:46:57,698 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 05:46:57,698 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 05:46:57,698 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 05:46:57,699 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 05:46:57,699 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 05:46:57,699 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 05:46:57,699 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 05:46:57,699 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 05:46:57,718 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2021-01-07 05:46:57,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-01-07 05:46:57,728 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:57,729 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-01-07 05:46:57,730 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2021-01-07 05:46:57,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:57,738 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2021-01-07 05:46:57,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:57,753 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116395690] [2021-01-07 05:46:57,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:57,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:57,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116395690] [2021-01-07 05:46:57,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:57,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:46:57,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333075686] [2021-01-07 05:46:57,985 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:57,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:58,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:58,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:58,048 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2021-01-07 05:46:58,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:58,099 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2021-01-07 05:46:58,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:58,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2021-01-07 05:46:58,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:58,116 INFO L225 Difference]: With dead ends: 15 [2021-01-07 05:46:58,116 INFO L226 Difference]: Without dead ends: 13 [2021-01-07 05:46:58,119 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:58,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-01-07 05:46:58,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-01-07 05:46:58,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-01-07 05:46:58,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-01-07 05:46:58,167 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 3 [2021-01-07 05:46:58,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:58,168 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-01-07 05:46:58,168 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:58,168 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-01-07 05:46:58,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-01-07 05:46:58,169 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:58,169 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-01-07 05:46:58,170 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 05:46:58,170 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2021-01-07 05:46:58,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:58,171 INFO L82 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2021-01-07 05:46:58,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:58,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728906132] [2021-01-07 05:46:58,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:58,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:58,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728906132] [2021-01-07 05:46:58,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:58,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:46:58,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196074442] [2021-01-07 05:46:58,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:58,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:58,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:58,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:58,264 INFO L87 Difference]: Start difference. First operand 13 states and 12 transitions. Second operand 3 states. [2021-01-07 05:46:58,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:58,291 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2021-01-07 05:46:58,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:58,292 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-01-07 05:46:58,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:58,293 INFO L225 Difference]: With dead ends: 12 [2021-01-07 05:46:58,293 INFO L226 Difference]: Without dead ends: 12 [2021-01-07 05:46:58,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:58,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-01-07 05:46:58,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-01-07 05:46:58,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-01-07 05:46:58,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2021-01-07 05:46:58,298 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 4 [2021-01-07 05:46:58,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:58,299 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2021-01-07 05:46:58,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:58,299 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2021-01-07 05:46:58,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-01-07 05:46:58,300 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:58,300 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-01-07 05:46:58,300 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 05:46:58,301 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2021-01-07 05:46:58,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:58,302 INFO L82 PathProgramCache]: Analyzing trace with hash 28692770, now seen corresponding path program 1 times [2021-01-07 05:46:58,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:58,303 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864752860] [2021-01-07 05:46:58,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:58,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:46:58,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:46:58,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864752860] [2021-01-07 05:46:58,338 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:46:58,338 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:46:58,339 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538923840] [2021-01-07 05:46:58,339 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:46:58,340 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:46:58,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:46:58,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:58,341 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 3 states. [2021-01-07 05:46:58,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:46:58,363 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-01-07 05:46:58,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:46:58,364 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2021-01-07 05:46:58,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:46:58,364 INFO L225 Difference]: With dead ends: 11 [2021-01-07 05:46:58,365 INFO L226 Difference]: Without dead ends: 11 [2021-01-07 05:46:58,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:46:58,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-01-07 05:46:58,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-01-07 05:46:58,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-01-07 05:46:58,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2021-01-07 05:46:58,369 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 5 [2021-01-07 05:46:58,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:46:58,370 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2021-01-07 05:46:58,370 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:46:58,370 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2021-01-07 05:46:58,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-07 05:46:58,371 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:46:58,371 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-07 05:46:58,372 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-07 05:46:58,372 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_FREE, ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr3REQUIRES_VIOLATION]=== [2021-01-07 05:46:58,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:46:58,373 INFO L82 PathProgramCache]: Analyzing trace with hash 889475912, now seen corresponding path program 1 times [2021-01-07 05:46:58,373 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:46:58,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984201683] [2021-01-07 05:46:58,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:46:58,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 05:46:58,395 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 05:46:58,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-01-07 05:46:58,411 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-01-07 05:46:58,439 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-01-07 05:46:58,439 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-01-07 05:46:58,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-07 05:46:58,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 05:46:58 BoogieIcfgContainer [2021-01-07 05:46:58,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-07 05:46:58,471 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-07 05:46:58,472 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-07 05:46:58,472 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-07 05:46:58,473 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:46:57" (3/4) ... [2021-01-07 05:46:58,477 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-01-07 05:46:58,529 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/memsafety-ext3/derefAfterFree1.c-witness.graphml [2021-01-07 05:46:58,529 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-07 05:46:58,532 INFO L168 Benchmark]: Toolchain (without parser) took 1700.21 ms. Allocated memory is still 152.0 MB. Free memory was 127.5 MB in the beginning and 107.5 MB in the end (delta: 20.0 MB). Peak memory consumption was 19.4 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:58,533 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 152.0 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 05:46:58,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.65 ms. Allocated memory is still 152.0 MB. Free memory was 127.3 MB in the beginning and 118.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:58,535 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.36 ms. Allocated memory is still 152.0 MB. Free memory was 118.6 MB in the beginning and 117.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:58,536 INFO L168 Benchmark]: Boogie Preprocessor took 26.14 ms. Allocated memory is still 152.0 MB. Free memory was 117.3 MB in the beginning and 116.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:58,537 INFO L168 Benchmark]: RCFGBuilder took 376.41 ms. Allocated memory is still 152.0 MB. Free memory was 116.3 MB in the beginning and 105.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:58,538 INFO L168 Benchmark]: TraceAbstraction took 899.33 ms. Allocated memory is still 152.0 MB. Free memory was 105.2 MB in the beginning and 109.1 MB in the end (delta: -3.9 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 05:46:58,539 INFO L168 Benchmark]: Witness Printer took 57.78 ms. Allocated memory is still 152.0 MB. Free memory was 109.1 MB in the beginning and 107.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:46:58,545 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 152.0 MB. Free memory is still 125.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 286.65 ms. Allocated memory is still 152.0 MB. Free memory was 127.3 MB in the beginning and 118.6 MB in the end (delta: 8.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 43.36 ms. Allocated memory is still 152.0 MB. Free memory was 118.6 MB in the beginning and 117.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.14 ms. Allocated memory is still 152.0 MB. Free memory was 117.3 MB in the beginning and 116.3 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 376.41 ms. Allocated memory is still 152.0 MB. Free memory was 116.3 MB in the beginning and 105.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 899.33 ms. Allocated memory is still 152.0 MB. Free memory was 105.2 MB in the beginning and 109.1 MB in the end (delta: -3.9 MB). There was no memory consumed. Max. memory is 8.0 GB. * Witness Printer took 57.78 ms. Allocated memory is still 152.0 MB. Free memory was 109.1 MB in the beginning and 107.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 14]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L10] int* p = malloc(10 * sizeof(int)); [L6] free(p) [L6] free(p) [L6] free(p) [L14] p[0] = 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 20 SDslu, 3 SDs, 0 SdLazy, 12 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 105 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 incorrect! Received shutdown request...