/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/test-0158-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-dcfa08f [2020-12-23 16:59:27,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 16:59:27,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 16:59:27,225 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 16:59:27,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 16:59:27,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 16:59:27,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 16:59:27,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 16:59:27,243 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 16:59:27,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 16:59:27,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 16:59:27,255 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 16:59:27,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 16:59:27,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 16:59:27,261 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 16:59:27,263 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 16:59:27,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 16:59:27,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 16:59:27,279 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 16:59:27,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 16:59:27,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 16:59:27,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 16:59:27,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 16:59:27,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 16:59:27,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-23 16:59:27,294 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 16:59:27,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 16:59:27,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 16:59:27,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 16:59:27,298 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 16:59:27,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 16:59:27,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 16:59:27,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 16:59:27,299 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 16:59:27,300 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 16:59:27,301 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 16:59:27,302 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-64bit-Automizer_Default.epf [2020-12-23 16:59:27,329 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 16:59:27,329 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 16:59:27,331 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 16:59:27,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 16:59:27,331 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 16:59:27,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 16:59:27,332 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-23 16:59:27,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 16:59:27,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 16:59:27,332 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2020-12-23 16:59:27,332 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2020-12-23 16:59:27,332 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2020-12-23 16:59:27,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 16:59:27,333 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-23 16:59:27,333 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 16:59:27,333 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 16:59:27,334 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 16:59:27,334 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 16:59:27,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 16:59:27,334 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 16:59:27,334 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 16:59:27,335 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 16:59:27,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 16:59:27,335 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 16:59:27,335 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 16:59:27,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 16:59:27,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 16:59:27,765 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 16:59:27,767 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 16:59:27,768 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 16:59:27,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety/test-0158-2.i [2020-12-23 16:59:27,853 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ea67bccc0/6a0f1c4950924263b96154f057569de8/FLAGec7afd4bc [2020-12-23 16:59:28,530 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 16:59:28,531 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/memsafety/test-0158-2.i [2020-12-23 16:59:28,545 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ea67bccc0/6a0f1c4950924263b96154f057569de8/FLAGec7afd4bc [2020-12-23 16:59:28,816 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/ea67bccc0/6a0f1c4950924263b96154f057569de8 [2020-12-23 16:59:28,820 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 16:59:28,827 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 16:59:28,831 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 16:59:28,831 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 16:59:28,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 16:59:28,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:59:28" (1/1) ... [2020-12-23 16:59:28,838 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5223378e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:28, skipping insertion in model container [2020-12-23 16:59:28,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:59:28" (1/1) ... [2020-12-23 16:59:28,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 16:59:28,917 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: StructLHS[VariableLHS[~data~0,],p0] left hand side expression in assignment: lhs: StructLHS[StructLHS[VariableLHS[~data~0,],str],p2] left hand side expression in assignment: lhs: ArrayLHS[StructLHS[StructLHS[VariableLHS[~data~0,],str],c],[IntegerLiteral[1]]] [2020-12-23 16:59:29,398 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:59:29,415 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#data~0,],base],StructAccessExpression[IdentifierExpression[~#data~0,],offset]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#data~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[10],StructAccessExpression[IdentifierExpression[~#data~0,],offset]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#data~0,],base],BinaryExpression[ARITHPLUS,IntegerLiteral[1],StructAccessExpression[IdentifierExpression[~#data~0,],offset]]]] [2020-12-23 16:59:29,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 16:59:29,547 INFO L208 MainTranslator]: Completed translation [2020-12-23 16:59:29,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:29 WrapperNode [2020-12-23 16:59:29,548 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 16:59:29,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 16:59:29,549 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 16:59:29,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 16:59:29,558 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:29" (1/1) ... [2020-12-23 16:59:29,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:29" (1/1) ... [2020-12-23 16:59:29,592 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 16:59:29,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 16:59:29,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 16:59:29,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 16:59:29,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:29" (1/1) ... [2020-12-23 16:59:29,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:29" (1/1) ... [2020-12-23 16:59:29,608 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:29" (1/1) ... [2020-12-23 16:59:29,608 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:29" (1/1) ... [2020-12-23 16:59:29,615 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:29" (1/1) ... [2020-12-23 16:59:29,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:29" (1/1) ... [2020-12-23 16:59:29,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:29" (1/1) ... [2020-12-23 16:59:29,623 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 16:59:29,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 16:59:29,624 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 16:59:29,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 16:59:29,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:29" (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 [2020-12-23 16:59:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 16:59:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-12-23 16:59:29,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 16:59:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 16:59:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 16:59:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 16:59:29,724 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 16:59:29,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 16:59:30,241 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 16:59:30,242 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-23 16:59:30,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:59:30 BoogieIcfgContainer [2020-12-23 16:59:30,244 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 16:59:30,246 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 16:59:30,246 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 16:59:30,251 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 16:59:30,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:59:28" (1/3) ... [2020-12-23 16:59:30,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d346db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:59:30, skipping insertion in model container [2020-12-23 16:59:30,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:59:29" (2/3) ... [2020-12-23 16:59:30,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68d346db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:59:30, skipping insertion in model container [2020-12-23 16:59:30,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:59:30" (3/3) ... [2020-12-23 16:59:30,255 INFO L111 eAbstractionObserver]: Analyzing ICFG test-0158-2.i [2020-12-23 16:59:30,271 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 16:59:30,280 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2020-12-23 16:59:30,324 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-12-23 16:59:30,353 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 16:59:30,353 INFO L378 AbstractCegarLoop]: Hoare is false [2020-12-23 16:59:30,353 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 16:59:30,353 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 16:59:30,353 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 16:59:30,354 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 16:59:30,354 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 16:59:30,354 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 16:59:30,368 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-23 16:59:30,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 16:59:30,375 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:59:30,376 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 16:59:30,377 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-23 16:59:30,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:59:30,383 INFO L82 PathProgramCache]: Analyzing trace with hash 29857, now seen corresponding path program 1 times [2020-12-23 16:59:30,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:59:30,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75528635] [2020-12-23 16:59:30,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:59:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:59:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:59:30,664 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75528635] [2020-12-23 16:59:30,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:59:30,665 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 16:59:30,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548839740] [2020-12-23 16:59:30,670 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:59:30,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:59:30,687 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:59:30,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:59:30,690 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2020-12-23 16:59:30,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:59:30,737 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2020-12-23 16:59:30,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:59:30,739 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 16:59:30,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:59:30,748 INFO L225 Difference]: With dead ends: 13 [2020-12-23 16:59:30,748 INFO L226 Difference]: Without dead ends: 11 [2020-12-23 16:59:30,750 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 [2020-12-23 16:59:30,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-23 16:59:30,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-12-23 16:59:30,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-12-23 16:59:30,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2020-12-23 16:59:30,784 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 3 [2020-12-23 16:59:30,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:59:30,785 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2020-12-23 16:59:30,785 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:59:30,785 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2020-12-23 16:59:30,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-12-23 16:59:30,786 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:59:30,786 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-12-23 16:59:30,786 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 16:59:30,786 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-23 16:59:30,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:59:30,788 INFO L82 PathProgramCache]: Analyzing trace with hash 29858, now seen corresponding path program 1 times [2020-12-23 16:59:30,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:59:30,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501067577] [2020-12-23 16:59:30,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:59:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 16:59:30,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 16:59:30,890 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501067577] [2020-12-23 16:59:30,891 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 16:59:30,891 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-23 16:59:30,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986377319] [2020-12-23 16:59:30,893 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 16:59:30,893 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 16:59:30,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 16:59:30,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 16:59:30,894 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 3 states. [2020-12-23 16:59:30,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 16:59:30,920 INFO L93 Difference]: Finished difference Result 8 states and 7 transitions. [2020-12-23 16:59:30,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 16:59:30,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-12-23 16:59:30,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 16:59:30,921 INFO L225 Difference]: With dead ends: 8 [2020-12-23 16:59:30,921 INFO L226 Difference]: Without dead ends: 8 [2020-12-23 16:59:30,922 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 [2020-12-23 16:59:30,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-23 16:59:30,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-23 16:59:30,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-23 16:59:30,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-12-23 16:59:30,925 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 3 [2020-12-23 16:59:30,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 16:59:30,925 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-12-23 16:59:30,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 16:59:30,925 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-12-23 16:59:30,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 16:59:30,926 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 16:59:30,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 16:59:30,926 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 16:59:30,926 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr5REQUIRES_VIOLATION, ULTIMATE.startErr4REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2020-12-23 16:59:30,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 16:59:30,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1803026981, now seen corresponding path program 1 times [2020-12-23 16:59:30,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 16:59:30,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119486122] [2020-12-23 16:59:30,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 16:59:30,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 16:59:30,960 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 16:59:30,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-23 16:59:30,993 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-23 16:59:31,019 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-23 16:59:31,020 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-23 16:59:31,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 16:59:31,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 04:59:31 BoogieIcfgContainer [2020-12-23 16:59:31,044 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 16:59:31,045 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 16:59:31,045 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 16:59:31,045 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 16:59:31,046 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:59:30" (3/4) ... [2020-12-23 16:59:31,051 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-23 16:59:31,051 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 16:59:31,054 INFO L168 Benchmark]: Toolchain (without parser) took 2225.32 ms. Allocated memory is still 152.0 MB. Free memory was 126.7 MB in the beginning and 92.2 MB in the end (delta: 34.5 MB). Peak memory consumption was 34.1 MB. Max. memory is 8.0 GB. [2020-12-23 16:59:31,054 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 152.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 16:59:31,055 INFO L168 Benchmark]: CACSL2BoogieTranslator took 717.51 ms. Allocated memory is still 152.0 MB. Free memory was 126.5 MB in the beginning and 105.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-23 16:59:31,056 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.83 ms. Allocated memory is still 152.0 MB. Free memory was 105.4 MB in the beginning and 103.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 16:59:31,057 INFO L168 Benchmark]: Boogie Preprocessor took 28.45 ms. Allocated memory is still 152.0 MB. Free memory was 103.8 MB in the beginning and 102.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 16:59:31,058 INFO L168 Benchmark]: RCFGBuilder took 620.68 ms. Allocated memory is still 152.0 MB. Free memory was 102.6 MB in the beginning and 123.7 MB in the end (delta: -21.1 MB). Peak memory consumption was 6.9 MB. Max. memory is 8.0 GB. [2020-12-23 16:59:31,059 INFO L168 Benchmark]: TraceAbstraction took 798.12 ms. Allocated memory is still 152.0 MB. Free memory was 123.2 MB in the beginning and 92.2 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. [2020-12-23 16:59:31,060 INFO L168 Benchmark]: Witness Printer took 6.07 ms. Allocated memory is still 152.0 MB. Free memory is still 92.2 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 16:59:31,065 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 152.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 717.51 ms. Allocated memory is still 152.0 MB. Free memory was 126.5 MB in the beginning and 105.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 42.83 ms. Allocated memory is still 152.0 MB. Free memory was 105.4 MB in the beginning and 103.8 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 28.45 ms. Allocated memory is still 152.0 MB. Free memory was 103.8 MB in the beginning and 102.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 620.68 ms. Allocated memory is still 152.0 MB. Free memory was 102.6 MB in the beginning and 123.7 MB in the end (delta: -21.1 MB). Peak memory consumption was 6.9 MB. Max. memory is 8.0 GB. * TraceAbstraction took 798.12 ms. Allocated memory is still 152.0 MB. Free memory was 123.2 MB in the beginning and 92.2 MB in the end (delta: 30.9 MB). Peak memory consumption was 31.5 MB. Max. memory is 8.0 GB. * Witness Printer took 6.07 ms. Allocated memory is still 152.0 MB. Free memory is still 92.2 MB. There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 523]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 523. Possible FailurePath: [L525-L532] union { void *p0; struct { char c[2]; void *p1; void *p2; } str; } data; [L533] data.p0 = malloc(37U) [L534] data.str.p2 = &data [L535] data.str.c[1] = sizeof data.str.p1 [L536] return 0; [L536] return 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 8 SDtfs, 9 SDslu, 2 SDs, 0 SdLazy, 17 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request...