/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/getNumbers3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-07 05:47:08,957 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-07 05:47:08,963 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-07 05:47:09,030 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-07 05:47:09,031 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-07 05:47:09,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-07 05:47:09,041 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-07 05:47:09,048 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-07 05:47:09,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-07 05:47:09,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-07 05:47:09,065 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-07 05:47:09,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-07 05:47:09,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-07 05:47:09,072 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-07 05:47:09,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-07 05:47:09,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-07 05:47:09,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-07 05:47:09,096 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-07 05:47:09,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-07 05:47:09,115 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-07 05:47:09,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-07 05:47:09,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-07 05:47:09,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-07 05:47:09,126 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-07 05:47:09,137 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-01-07 05:47:09,146 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-07 05:47:09,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-07 05:47:09,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-07 05:47:09,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-07 05:47:09,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-07 05:47:09,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-07 05:47:09,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-07 05:47:09,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-07 05:47:09,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-07 05:47:09,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-07 05:47:09,157 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-07 05:47:09,158 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 05:47:09,220 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-07 05:47:09,220 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-07 05:47:09,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-07 05:47:09,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-07 05:47:09,228 INFO L138 SettingsManager]: * Use SBE=true [2021-01-07 05:47:09,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-07 05:47:09,228 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-01-07 05:47:09,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-07 05:47:09,229 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-07 05:47:09,229 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-01-07 05:47:09,230 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-01-07 05:47:09,231 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-01-07 05:47:09,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-07 05:47:09,231 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-01-07 05:47:09,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-07 05:47:09,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-07 05:47:09,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-07 05:47:09,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-07 05:47:09,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-07 05:47:09,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-07 05:47:09,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-07 05:47:09,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-07 05:47:09,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-07 05:47:09,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-07 05:47:09,234 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-07 05:47:09,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-07 05:47:09,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-07 05:47:09,751 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-07 05:47:09,754 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-07 05:47:09,755 INFO L275 PluginConnector]: CDTParser initialized [2021-01-07 05:47:09,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/memsafety-ext3/getNumbers3.c [2021-01-07 05:47:09,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2df733a68/dd9a0d9974a64e21b4a0b6bb101e2b42/FLAGe4015bdee [2021-01-07 05:47:10,498 INFO L306 CDTParser]: Found 1 translation units. [2021-01-07 05:47:10,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/memsafety-ext3/getNumbers3.c [2021-01-07 05:47:10,506 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2df733a68/dd9a0d9974a64e21b4a0b6bb101e2b42/FLAGe4015bdee [2021-01-07 05:47:10,868 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/2df733a68/dd9a0d9974a64e21b4a0b6bb101e2b42 [2021-01-07 05:47:10,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-07 05:47:10,875 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-07 05:47:10,877 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-07 05:47:10,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-07 05:47:10,886 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-07 05:47:10,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:47:10" (1/1) ... [2021-01-07 05:47:10,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d730e16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:47:10, skipping insertion in model container [2021-01-07 05:47:10,892 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.01 05:47:10" (1/1) ... [2021-01-07 05:47:10,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-07 05:47:10,929 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: lhs: ArrayLHS[VariableLHS[~array~0,GLOBAL],[IdentifierExpression[~i~0,]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~numbers~0,],base],StructAccessExpression[IdentifierExpression[~numbers~0,],offset]]] [2021-01-07 05:47:11,167 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:47:11,188 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~#array~0,GLOBAL],base],BinaryExpression[ARITHPLUS,StructAccessExpression[IdentifierExpression[~#array~0,GLOBAL],offset],BinaryExpression[ARITHMUL,IntegerLiteral[4],IdentifierExpression[~i~0,]]]]] left hand side expression in assignment: address: StructConstructor[[base,offset],[StructAccessExpression[IdentifierExpression[~numbers~0,],base],StructAccessExpression[IdentifierExpression[~numbers~0,],offset]]] [2021-01-07 05:47:11,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-07 05:47:11,232 INFO L208 MainTranslator]: Completed translation [2021-01-07 05:47:11,233 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:47:11 WrapperNode [2021-01-07 05:47:11,233 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-07 05:47:11,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-07 05:47:11,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-07 05:47:11,236 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-07 05:47:11,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:47:11" (1/1) ... [2021-01-07 05:47:11,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:47:11" (1/1) ... [2021-01-07 05:47:11,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-07 05:47:11,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-07 05:47:11,287 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-07 05:47:11,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-07 05:47:11,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:47:11" (1/1) ... [2021-01-07 05:47:11,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:47:11" (1/1) ... [2021-01-07 05:47:11,303 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:47:11" (1/1) ... [2021-01-07 05:47:11,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:47:11" (1/1) ... [2021-01-07 05:47:11,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:47:11" (1/1) ... [2021-01-07 05:47:11,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:47:11" (1/1) ... [2021-01-07 05:47:11,317 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:47:11" (1/1) ... [2021-01-07 05:47:11,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-07 05:47:11,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-07 05:47:11,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-07 05:47:11,321 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-07 05:47:11,322 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:47:11" (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 05:47:11,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-07 05:47:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-07 05:47:11,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-07 05:47:11,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-07 05:47:11,755 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-07 05:47:11,756 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-01-07 05:47:11,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:47:11 BoogieIcfgContainer [2021-01-07 05:47:11,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-07 05:47:11,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-07 05:47:11,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-07 05:47:11,767 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-07 05:47:11,768 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.01 05:47:10" (1/3) ... [2021-01-07 05:47:11,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b24879c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:47:11, skipping insertion in model container [2021-01-07 05:47:11,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.01 05:47:11" (2/3) ... [2021-01-07 05:47:11,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b24879c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.01 05:47:11, skipping insertion in model container [2021-01-07 05:47:11,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:47:11" (3/3) ... [2021-01-07 05:47:11,774 INFO L111 eAbstractionObserver]: Analyzing ICFG getNumbers3.c [2021-01-07 05:47:11,784 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-07 05:47:11,793 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2021-01-07 05:47:11,823 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-01-07 05:47:11,942 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-07 05:47:11,943 INFO L378 AbstractCegarLoop]: Hoare is false [2021-01-07 05:47:11,943 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-07 05:47:11,944 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-07 05:47:11,944 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-07 05:47:11,945 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-07 05:47:11,945 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-07 05:47:11,945 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-07 05:47:11,963 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2021-01-07 05:47:11,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-01-07 05:47:11,972 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:47:11,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-01-07 05:47:11,974 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:47:11,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:47:11,982 INFO L82 PathProgramCache]: Analyzing trace with hash 925765, now seen corresponding path program 1 times [2021-01-07 05:47:11,995 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:47:11,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255380852] [2021-01-07 05:47:11,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:47:12,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:47:12,219 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 05:47:12,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255380852] [2021-01-07 05:47:12,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:47:12,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-01-07 05:47:12,223 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972233812] [2021-01-07 05:47:12,229 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:47:12,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:47:12,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:47:12,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:47:12,256 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2021-01-07 05:47:12,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:47:12,315 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-01-07 05:47:12,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:47:12,318 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2021-01-07 05:47:12,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:47:12,332 INFO L225 Difference]: With dead ends: 16 [2021-01-07 05:47:12,332 INFO L226 Difference]: Without dead ends: 14 [2021-01-07 05:47:12,335 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 05:47:12,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-01-07 05:47:12,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-01-07 05:47:12,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2021-01-07 05:47:12,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-01-07 05:47:12,386 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 4 [2021-01-07 05:47:12,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:47:12,387 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-01-07 05:47:12,387 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:47:12,387 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-01-07 05:47:12,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-01-07 05:47:12,388 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:47:12,388 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-01-07 05:47:12,388 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-07 05:47:12,389 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:47:12,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:47:12,390 INFO L82 PathProgramCache]: Analyzing trace with hash 925766, now seen corresponding path program 1 times [2021-01-07 05:47:12,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:47:12,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295893027] [2021-01-07 05:47:12,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:47:12,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:47:12,583 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 05:47:12,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295893027] [2021-01-07 05:47:12,587 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:47:12,587 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:47:12,588 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29397694] [2021-01-07 05:47:12,590 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-07 05:47:12,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:47:12,594 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-07 05:47:12,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-07 05:47:12,595 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand 4 states. [2021-01-07 05:47:12,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:47:12,697 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-01-07 05:47:12,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-07 05:47:12,698 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2021-01-07 05:47:12,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:47:12,699 INFO L225 Difference]: With dead ends: 17 [2021-01-07 05:47:12,700 INFO L226 Difference]: Without dead ends: 17 [2021-01-07 05:47:12,701 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-01-07 05:47:12,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-01-07 05:47:12,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2021-01-07 05:47:12,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-01-07 05:47:12,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-01-07 05:47:12,710 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 4 [2021-01-07 05:47:12,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:47:12,711 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-01-07 05:47:12,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-07 05:47:12,711 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-01-07 05:47:12,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-07 05:47:12,712 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:47:12,712 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2021-01-07 05:47:12,713 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-07 05:47:12,714 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:47:12,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:47:12,717 INFO L82 PathProgramCache]: Analyzing trace with hash 1809646286, now seen corresponding path program 1 times [2021-01-07 05:47:12,717 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:47:12,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141654026] [2021-01-07 05:47:12,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:47:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:47:12,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:47:12,970 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141654026] [2021-01-07 05:47:12,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498198549] [2021-01-07 05:47:12,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:47:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:47:13,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 8 conjunts are in the unsatisfiable core [2021-01-07 05:47:13,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:47:13,129 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-01-07 05:47:13,132 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:47:13,144 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:47:13,146 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:47:13,147 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2021-01-07 05:47:13,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:47:13,231 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:47:13,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-01-07 05:47:13,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826247537] [2021-01-07 05:47:13,233 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-07 05:47:13,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:47:13,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-07 05:47:13,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-01-07 05:47:13,235 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2021-01-07 05:47:13,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:47:13,424 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-01-07 05:47:13,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-01-07 05:47:13,426 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 7 [2021-01-07 05:47:13,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:47:13,427 INFO L225 Difference]: With dead ends: 20 [2021-01-07 05:47:13,427 INFO L226 Difference]: Without dead ends: 20 [2021-01-07 05:47:13,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-01-07 05:47:13,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-01-07 05:47:13,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-01-07 05:47:13,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-01-07 05:47:13,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2021-01-07 05:47:13,433 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2021-01-07 05:47:13,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:47:13,433 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2021-01-07 05:47:13,433 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-07 05:47:13,434 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2021-01-07 05:47:13,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-07 05:47:13,434 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:47:13,435 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-01-07 05:47:13,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-01-07 05:47:13,651 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:47:13,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:47:13,652 INFO L82 PathProgramCache]: Analyzing trace with hash 688915640, now seen corresponding path program 1 times [2021-01-07 05:47:13,653 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:47:13,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895774461] [2021-01-07 05:47:13,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:47:13,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:47:13,731 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-01-07 05:47:13,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895774461] [2021-01-07 05:47:13,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:47:13,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-07 05:47:13,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520082626] [2021-01-07 05:47:13,733 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 05:47:13,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:47:13,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 05:47:13,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-07 05:47:13,734 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 5 states. [2021-01-07 05:47:13,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:47:13,781 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2021-01-07 05:47:13,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 05:47:13,781 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-01-07 05:47:13,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:47:13,782 INFO L225 Difference]: With dead ends: 19 [2021-01-07 05:47:13,783 INFO L226 Difference]: Without dead ends: 19 [2021-01-07 05:47:13,783 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-01-07 05:47:13,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-01-07 05:47:13,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-01-07 05:47:13,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-01-07 05:47:13,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2021-01-07 05:47:13,788 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 15 [2021-01-07 05:47:13,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:47:13,788 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2021-01-07 05:47:13,788 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 05:47:13,789 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2021-01-07 05:47:13,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-01-07 05:47:13,790 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:47:13,790 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2021-01-07 05:47:13,790 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-07 05:47:13,790 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:47:13,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:47:13,791 INFO L82 PathProgramCache]: Analyzing trace with hash 688915641, now seen corresponding path program 1 times [2021-01-07 05:47:13,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:47:13,792 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362834233] [2021-01-07 05:47:13,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:47:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:47:13,857 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:47:13,857 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362834233] [2021-01-07 05:47:13,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032081465] [2021-01-07 05:47:13,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:47:13,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:47:13,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 5 conjunts are in the unsatisfiable core [2021-01-07 05:47:13,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:47:13,974 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:47:13,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-01-07 05:47:13,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7 [2021-01-07 05:47:13,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131937515] [2021-01-07 05:47:13,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-07 05:47:13,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:47:13,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-07 05:47:13,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-01-07 05:47:13,978 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 7 states. [2021-01-07 05:47:14,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:47:14,029 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2021-01-07 05:47:14,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-07 05:47:14,029 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2021-01-07 05:47:14,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:47:14,030 INFO L225 Difference]: With dead ends: 24 [2021-01-07 05:47:14,031 INFO L226 Difference]: Without dead ends: 24 [2021-01-07 05:47:14,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-01-07 05:47:14,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-01-07 05:47:14,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2021-01-07 05:47:14,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-01-07 05:47:14,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2021-01-07 05:47:14,036 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 15 [2021-01-07 05:47:14,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:47:14,036 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2021-01-07 05:47:14,036 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-07 05:47:14,036 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2021-01-07 05:47:14,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-01-07 05:47:14,037 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:47:14,037 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-01-07 05:47:14,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:47:14,251 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:47:14,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:47:14,252 INFO L82 PathProgramCache]: Analyzing trace with hash -622871247, now seen corresponding path program 2 times [2021-01-07 05:47:14,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:47:14,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635525768] [2021-01-07 05:47:14,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:47:14,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:47:14,380 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-07 05:47:14,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635525768] [2021-01-07 05:47:14,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1187828817] [2021-01-07 05:47:14,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:47:14,457 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-01-07 05:47:14,457 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-01-07 05:47:14,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 12 conjunts are in the unsatisfiable core [2021-01-07 05:47:14,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-01-07 05:47:14,484 INFO L382 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-01-07 05:47:14,487 INFO L547 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-01-07 05:47:14,496 INFO L625 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-01-07 05:47:14,500 INFO L547 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-01-07 05:47:14,500 INFO L244 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2021-01-07 05:47:14,621 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-01-07 05:47:14,622 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-01-07 05:47:14,622 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 10 [2021-01-07 05:47:14,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317649292] [2021-01-07 05:47:14,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-07 05:47:14,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:47:14,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-07 05:47:14,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-01-07 05:47:14,625 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 5 states. [2021-01-07 05:47:14,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:47:14,679 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2021-01-07 05:47:14,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-07 05:47:14,680 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2021-01-07 05:47:14,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:47:14,681 INFO L225 Difference]: With dead ends: 21 [2021-01-07 05:47:14,681 INFO L226 Difference]: Without dead ends: 21 [2021-01-07 05:47:14,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-01-07 05:47:14,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-01-07 05:47:14,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-01-07 05:47:14,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2021-01-07 05:47:14,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-01-07 05:47:14,685 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 18 [2021-01-07 05:47:14,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:47:14,686 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-01-07 05:47:14,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-01-07 05:47:14,686 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-01-07 05:47:14,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-01-07 05:47:14,687 INFO L414 BasicCegarLoop]: Found error trace [2021-01-07 05:47:14,687 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-07 05:47:14,901 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-01-07 05:47:14,902 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1REQUIRES_VIOLATION, ULTIMATE.startErr0REQUIRES_VIOLATION, ULTIMATE.startErr3REQUIRES_VIOLATION, ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr2REQUIRES_VIOLATION]=== [2021-01-07 05:47:14,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-07 05:47:14,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1578815343, now seen corresponding path program 1 times [2021-01-07 05:47:14,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-07 05:47:14,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592546932] [2021-01-07 05:47:14,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-07 05:47:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-07 05:47:14,985 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-01-07 05:47:14,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592546932] [2021-01-07 05:47:14,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-07 05:47:14,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-01-07 05:47:14,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587070435] [2021-01-07 05:47:14,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-07 05:47:14,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-07 05:47:14,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-07 05:47:14,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-07 05:47:14,988 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 3 states. [2021-01-07 05:47:14,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-07 05:47:14,999 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-01-07 05:47:15,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-07 05:47:15,000 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2021-01-07 05:47:15,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-07 05:47:15,001 INFO L225 Difference]: With dead ends: 20 [2021-01-07 05:47:15,001 INFO L226 Difference]: Without dead ends: 0 [2021-01-07 05:47:15,001 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 05:47:15,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-07 05:47:15,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-07 05:47:15,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-07 05:47:15,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-07 05:47:15,002 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2021-01-07 05:47:15,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-07 05:47:15,003 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-07 05:47:15,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-07 05:47:15,003 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-07 05:47:15,003 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-07 05:47:15,003 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-07 05:47:15,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.01 05:47:15 BoogieIcfgContainer [2021-01-07 05:47:15,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-07 05:47:15,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-07 05:47:15,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-07 05:47:15,010 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-07 05:47:15,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.01 05:47:11" (3/4) ... [2021-01-07 05:47:15,014 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-07 05:47:15,025 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-01-07 05:47:15,025 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-01-07 05:47:15,026 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-01-07 05:47:15,064 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/memsafety-ext3/getNumbers3.c-witness.graphml [2021-01-07 05:47:15,064 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-07 05:47:15,066 INFO L168 Benchmark]: Toolchain (without parser) took 4191.63 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 88.7 MB in the end (delta: 37.9 MB). Peak memory consumption was 38.3 MB. Max. memory is 8.0 GB. [2021-01-07 05:47:15,067 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-07 05:47:15,067 INFO L168 Benchmark]: CACSL2BoogieTranslator took 357.44 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 117.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-01-07 05:47:15,068 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.09 ms. Allocated memory is still 151.0 MB. Free memory was 117.3 MB in the beginning and 115.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:47:15,069 INFO L168 Benchmark]: Boogie Preprocessor took 32.10 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 114.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-07 05:47:15,069 INFO L168 Benchmark]: RCFGBuilder took 438.55 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 103.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-01-07 05:47:15,070 INFO L168 Benchmark]: TraceAbstraction took 3247.94 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 91.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:47:15,071 INFO L168 Benchmark]: Witness Printer took 55.43 ms. Allocated memory is still 151.0 MB. Free memory was 90.8 MB in the beginning and 88.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-07 05:47:15,074 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 151.0 MB. Free memory is still 123.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 357.44 ms. Allocated memory is still 151.0 MB. Free memory was 126.4 MB in the beginning and 117.3 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 51.09 ms. Allocated memory is still 151.0 MB. Free memory was 117.3 MB in the beginning and 115.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.10 ms. Allocated memory is still 151.0 MB. Free memory was 115.8 MB in the beginning and 114.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 438.55 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 103.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3247.94 ms. Allocated memory is still 151.0 MB. Free memory was 102.9 MB in the beginning and 91.3 MB in the end (delta: 11.6 MB). Peak memory consumption was 13.1 MB. Max. memory is 8.0 GB. * Witness Printer took 55.43 ms. Allocated memory is still 151.0 MB. Free memory was 90.8 MB in the beginning and 88.7 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: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 6]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 12]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 14]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 5 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.0s, OverallIterations: 7, TraceHistogramMax: 4, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 50 SDtfs, 97 SDslu, 52 SDs, 0 SdLazy, 109 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 69 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=5, 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, 7 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 123 NumberOfCodeBlocks, 111 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 113 ConstructedInterpolants, 0 QuantifiedInterpolants, 7392 SizeOfPredicates, 4 NumberOfNonLiveVariables, 111 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 56/106 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...