/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/ldv-regression/test05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-bitabs-178dd20 [2021-01-06 16:12:07,896 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-06 16:12:07,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-06 16:12:07,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-06 16:12:07,935 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-06 16:12:07,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-06 16:12:07,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-06 16:12:07,941 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-06 16:12:07,944 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-06 16:12:07,945 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-06 16:12:07,946 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-06 16:12:07,948 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-06 16:12:07,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-06 16:12:07,950 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-06 16:12:07,951 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-06 16:12:07,953 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-06 16:12:07,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-06 16:12:07,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-06 16:12:07,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-06 16:12:07,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-06 16:12:07,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-06 16:12:07,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-06 16:12:07,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-06 16:12:07,973 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-06 16:12:07,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-06 16:12:07,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-06 16:12:07,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-06 16:12:07,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-06 16:12:07,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-06 16:12:07,999 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-06 16:12:08,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-06 16:12:08,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-06 16:12:08,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-06 16:12:08,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-06 16:12:08,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-06 16:12:08,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-06 16:12:08,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-06 16:12:08,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-06 16:12:08,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-06 16:12:08,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-06 16:12:08,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-06 16:12:08,022 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-01-06 16:12:08,073 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-06 16:12:08,073 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-06 16:12:08,077 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-06 16:12:08,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-06 16:12:08,078 INFO L138 SettingsManager]: * Use SBE=true [2021-01-06 16:12:08,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-06 16:12:08,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-06 16:12:08,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-06 16:12:08,079 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-06 16:12:08,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-06 16:12:08,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-06 16:12:08,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-06 16:12:08,082 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-06 16:12:08,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-06 16:12:08,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-06 16:12:08,083 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-06 16:12:08,083 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-06 16:12:08,083 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-06 16:12:08,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-06 16:12:08,084 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-06 16:12:08,084 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-06 16:12:08,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-06 16:12:08,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-06 16:12:08,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-06 16:12:08,085 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-01-06 16:12:08,086 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-06 16:12:08,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-06 16:12:08,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-06 16:12:08,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-06 16:12:08,573 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-06 16:12:08,575 INFO L275 PluginConnector]: CDTParser initialized [2021-01-06 16:12:08,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test05.c [2021-01-06 16:12:08,678 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6281d2072/5e5c950fddcf4993837b2b58d64a9224/FLAG61d2fd325 [2021-01-06 16:12:09,339 INFO L306 CDTParser]: Found 1 translation units. [2021-01-06 16:12:09,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/test05.c [2021-01-06 16:12:09,351 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6281d2072/5e5c950fddcf4993837b2b58d64a9224/FLAG61d2fd325 [2021-01-06 16:12:09,691 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/6281d2072/5e5c950fddcf4993837b2b58d64a9224 [2021-01-06 16:12:09,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-06 16:12:09,696 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-01-06 16:12:09,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-06 16:12:09,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-06 16:12:09,703 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-06 16:12:09,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:12:09" (1/1) ... [2021-01-06 16:12:09,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a2a1139 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:12:09, skipping insertion in model container [2021-01-06 16:12:09,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.01 04:12:09" (1/1) ... [2021-01-06 16:12:09,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-06 16:12:09,730 INFO L178 MainTranslator]: Built tables and reachable declarations left hand side expression in assignment: address: IdentifierExpression[~p1,] left hand side expression in assignment: address: IdentifierExpression[~pq~0,] left hand side expression in assignment: lhs: VariableLHS[~p1~0,] left hand side expression in assignment: lhs: VariableLHS[~p2~0,] left hand side expression in assignment: lhs: VariableLHS[~b~0,] left hand side expression in assignment: lhs: VariableLHS[~a~0,] left hand side expression in assignment: lhs: VariableLHS[~a~0,] [2021-01-06 16:12:09,903 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/test05.c[710,723] [2021-01-06 16:12:09,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:12:09,918 INFO L203 MainTranslator]: Completed pre-run left hand side expression in assignment: address: IdentifierExpression[~p1,] left hand side expression in assignment: address: IdentifierExpression[~pq~0,] left hand side expression in assignment: address: IdentifierExpression[~#p1~0,] left hand side expression in assignment: address: IdentifierExpression[~#p2~0,] left hand side expression in assignment: address: IdentifierExpression[~#b~0,] left hand side expression in assignment: address: IdentifierExpression[~#a~0,] left hand side expression in assignment: address: IdentifierExpression[~#a~0,] [2021-01-06 16:12:09,939 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/test05.c[710,723] [2021-01-06 16:12:09,940 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-06 16:12:09,957 INFO L208 MainTranslator]: Completed translation [2021-01-06 16:12:09,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:12:09 WrapperNode [2021-01-06 16:12:09,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-06 16:12:09,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-06 16:12:09,960 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-06 16:12:09,960 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-06 16:12:09,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:12:09" (1/1) ... [2021-01-06 16:12:09,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:12:09" (1/1) ... [2021-01-06 16:12:10,002 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-06 16:12:10,003 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-06 16:12:10,003 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-06 16:12:10,003 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-06 16:12:10,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:12:09" (1/1) ... [2021-01-06 16:12:10,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:12:09" (1/1) ... [2021-01-06 16:12:10,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:12:09" (1/1) ... [2021-01-06 16:12:10,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:12:09" (1/1) ... [2021-01-06 16:12:10,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:12:09" (1/1) ... [2021-01-06 16:12:10,028 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:12:09" (1/1) ... [2021-01-06 16:12:10,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:12:09" (1/1) ... [2021-01-06 16:12:10,035 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-06 16:12:10,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-06 16:12:10,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-06 16:12:10,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-06 16:12:10,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:12:09" (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 [2021-01-06 16:12:10,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-01-06 16:12:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-06 16:12:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-06 16:12:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-06 16:12:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-06 16:12:10,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-06 16:12:10,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-06 16:12:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-06 16:12:10,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-06 16:12:10,626 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-06 16:12:10,626 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-01-06 16:12:10,630 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:12:10 BoogieIcfgContainer [2021-01-06 16:12:10,630 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-06 16:12:10,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-06 16:12:10,635 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-06 16:12:10,640 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-06 16:12:10,640 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.01 04:12:09" (1/3) ... [2021-01-06 16:12:10,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476552a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:12:10, skipping insertion in model container [2021-01-06 16:12:10,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.01 04:12:09" (2/3) ... [2021-01-06 16:12:10,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@476552a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.01 04:12:10, skipping insertion in model container [2021-01-06 16:12:10,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:12:10" (3/3) ... [2021-01-06 16:12:10,645 INFO L111 eAbstractionObserver]: Analyzing ICFG test05.c [2021-01-06 16:12:10,652 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-06 16:12:10,660 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-01-06 16:12:10,689 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-01-06 16:12:10,740 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-06 16:12:10,741 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-06 16:12:10,741 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-06 16:12:10,741 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-06 16:12:10,741 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-06 16:12:10,742 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-06 16:12:10,742 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-01-06 16:12:10,742 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-06 16:12:10,763 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2021-01-06 16:12:10,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-01-06 16:12:10,773 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:12:10,774 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-01-06 16:12:10,775 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:12:10,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:12:10,784 INFO L82 PathProgramCache]: Analyzing trace with hash 889629870, now seen corresponding path program 1 times [2021-01-06 16:12:10,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:12:10,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632127669] [2021-01-06 16:12:10,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:12:11,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:12:11,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:12:11,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632127669] [2021-01-06 16:12:11,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:12:11,171 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-01-06 16:12:11,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150348750] [2021-01-06 16:12:11,178 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-01-06 16:12:11,178 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:12:11,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-01-06 16:12:11,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 16:12:11,198 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2021-01-06 16:12:11,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:12:11,233 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2021-01-06 16:12:11,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-01-06 16:12:11,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2021-01-06 16:12:11,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:12:11,263 INFO L225 Difference]: With dead ends: 20 [2021-01-06 16:12:11,263 INFO L226 Difference]: Without dead ends: 9 [2021-01-06 16:12:11,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-01-06 16:12:11,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-01-06 16:12:11,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-01-06 16:12:11,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-01-06 16:12:11,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2021-01-06 16:12:11,309 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2021-01-06 16:12:11,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:12:11,310 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2021-01-06 16:12:11,311 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-01-06 16:12:11,311 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2021-01-06 16:12:11,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-01-06 16:12:11,312 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:12:11,312 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:12:11,313 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-06 16:12:11,313 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:12:11,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:12:11,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1804905807, now seen corresponding path program 1 times [2021-01-06 16:12:11,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:12:11,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487399184] [2021-01-06 16:12:11,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:12:11,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:12:11,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:12:11,461 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487399184] [2021-01-06 16:12:11,461 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:12:11,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-01-06 16:12:11,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788623202] [2021-01-06 16:12:11,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-01-06 16:12:11,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:12:11,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-01-06 16:12:11,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-01-06 16:12:11,465 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2021-01-06 16:12:11,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:12:11,505 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2021-01-06 16:12:11,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-01-06 16:12:11,506 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2021-01-06 16:12:11,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:12:11,507 INFO L225 Difference]: With dead ends: 11 [2021-01-06 16:12:11,507 INFO L226 Difference]: Without dead ends: 9 [2021-01-06 16:12:11,508 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-01-06 16:12:11,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-01-06 16:12:11,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-01-06 16:12:11,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-01-06 16:12:11,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-01-06 16:12:11,512 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 7 [2021-01-06 16:12:11,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:12:11,512 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-01-06 16:12:11,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-01-06 16:12:11,513 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-01-06 16:12:11,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-01-06 16:12:11,513 INFO L414 BasicCegarLoop]: Found error trace [2021-01-06 16:12:11,513 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-01-06 16:12:11,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-06 16:12:11,514 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-06 16:12:11,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-06 16:12:11,515 INFO L82 PathProgramCache]: Analyzing trace with hash 117506990, now seen corresponding path program 1 times [2021-01-06 16:12:11,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-06 16:12:11,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153559488] [2021-01-06 16:12:11,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-06 16:12:11,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-06 16:12:11,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-06 16:12:11,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153559488] [2021-01-06 16:12:11,790 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-06 16:12:11,790 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-01-06 16:12:11,790 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431427907] [2021-01-06 16:12:11,791 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-01-06 16:12:11,791 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-06 16:12:11,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-01-06 16:12:11,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-01-06 16:12:11,795 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 7 states. [2021-01-06 16:12:11,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-06 16:12:11,880 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2021-01-06 16:12:11,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-01-06 16:12:11,880 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2021-01-06 16:12:11,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-06 16:12:11,884 INFO L225 Difference]: With dead ends: 9 [2021-01-06 16:12:11,885 INFO L226 Difference]: Without dead ends: 0 [2021-01-06 16:12:11,886 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-01-06 16:12:11,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-01-06 16:12:11,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-01-06 16:12:11,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-01-06 16:12:11,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-01-06 16:12:11,892 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-01-06 16:12:11,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-06 16:12:11,893 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-01-06 16:12:11,894 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-01-06 16:12:11,894 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-01-06 16:12:11,894 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-01-06 16:12:11,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-06 16:12:11,897 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-01-06 16:12:11,923 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-01-06 16:12:11,924 INFO L189 CegarLoopUtils]: For program point L40(lines 40 42) no Hoare annotation was computed. [2021-01-06 16:12:11,924 INFO L189 CegarLoopUtils]: For program point L36(lines 36 38) no Hoare annotation was computed. [2021-01-06 16:12:11,924 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2021-01-06 16:12:11,924 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-01-06 16:12:11,924 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-01-06 16:12:11,925 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2021-01-06 16:12:11,925 INFO L185 CegarLoopUtils]: At program point L18(lines 13 20) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |ULTIMATE.start_main_~#p1~0.base|) |ULTIMATE.start_main_~#p1~0.offset|))) (and (= |ULTIMATE.start_f_#res| 1) (not (= |ULTIMATE.start_main_~#a~0.base| .cse0)) (not (= |ULTIMATE.start_main_~#a~0.base| |ULTIMATE.start_main_~#p1~0.base|)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| |ULTIMATE.start_main_~#p1~0.base|) |ULTIMATE.start_main_~#p1~0.offset|)) 0) (= ULTIMATE.start_f_~a 4))) [2021-01-06 16:12:11,925 INFO L185 CegarLoopUtils]: At program point L47(lines 22 48) the Hoare annotation is: (= ULTIMATE.start_f_~a 4) [2021-01-06 16:12:11,925 INFO L189 CegarLoopUtils]: For program point L14(lines 14 19) no Hoare annotation was computed. [2021-01-06 16:12:11,926 INFO L185 CegarLoopUtils]: At program point L41(lines 22 48) the Hoare annotation is: false [2021-01-06 16:12:11,926 INFO L189 CegarLoopUtils]: For program point L6(lines 6 11) no Hoare annotation was computed. [2021-01-06 16:12:11,943 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-01-06 16:12:11,945 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-01-06 16:12:11,945 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-01-06 16:12:11,946 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-01-06 16:12:11,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-01-06 16:12:11,947 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-01-06 16:12:11,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.01 04:12:11 BoogieIcfgContainer [2021-01-06 16:12:11,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-06 16:12:11,950 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-01-06 16:12:11,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-01-06 16:12:11,951 INFO L275 PluginConnector]: Witness Printer initialized [2021-01-06 16:12:11,951 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.01 04:12:10" (3/4) ... [2021-01-06 16:12:11,955 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-01-06 16:12:11,975 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2021-01-06 16:12:11,976 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-01-06 16:12:11,976 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 16:12:11,977 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-01-06 16:12:12,008 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == 1 && !(a == #memory_$Pointer$[p1][p1])) && !(a == p1)) && unknown-#memory_int-unknown[#memory_$Pointer$[p1][p1]][#memory_$Pointer$[p1][p1]] == 0) && a == 4 [2021-01-06 16:12:12,057 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-regression/test05.c-witness.graphml [2021-01-06 16:12:12,057 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-01-06 16:12:12,060 INFO L168 Benchmark]: Toolchain (without parser) took 2362.53 ms. Allocated memory is still 151.0 MB. Free memory was 126.6 MB in the beginning and 67.7 MB in the end (delta: 58.9 MB). Peak memory consumption was 59.8 MB. Max. memory is 8.0 GB. [2021-01-06 16:12:12,060 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-01-06 16:12:12,062 INFO L168 Benchmark]: CACSL2BoogieTranslator took 260.52 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 116.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-01-06 16:12:12,063 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.53 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 115.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:12:12,069 INFO L168 Benchmark]: Boogie Preprocessor took 32.77 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 113.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-01-06 16:12:12,070 INFO L168 Benchmark]: RCFGBuilder took 592.08 ms. Allocated memory is still 151.0 MB. Free memory was 113.8 MB in the beginning and 128.5 MB in the end (delta: -14.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. [2021-01-06 16:12:12,071 INFO L168 Benchmark]: TraceAbstraction took 1314.78 ms. Allocated memory is still 151.0 MB. Free memory was 128.0 MB in the beginning and 70.8 MB in the end (delta: 57.1 MB). Peak memory consumption was 57.7 MB. Max. memory is 8.0 GB. [2021-01-06 16:12:12,071 INFO L168 Benchmark]: Witness Printer took 106.93 ms. Allocated memory is still 151.0 MB. Free memory was 70.8 MB in the beginning and 67.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-01-06 16:12:12,079 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 151.0 MB. Free memory is still 124.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 260.52 ms. Allocated memory is still 151.0 MB. Free memory was 126.2 MB in the beginning and 116.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 42.53 ms. Allocated memory is still 151.0 MB. Free memory was 116.5 MB in the beginning and 115.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 32.77 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 113.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 592.08 ms. Allocated memory is still 151.0 MB. Free memory was 113.8 MB in the beginning and 128.5 MB in the end (delta: -14.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1314.78 ms. Allocated memory is still 151.0 MB. Free memory was 128.0 MB in the beginning and 70.8 MB in the end (delta: 57.1 MB). Peak memory consumption was 57.7 MB. Max. memory is 8.0 GB. * Witness Printer took 106.93 ms. Allocated memory is still 151.0 MB. Free memory was 70.8 MB in the beginning and 67.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 46]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: a == 4 - InvariantResult [Line: 13]: Loop Invariant [2021-01-06 16:12:12,088 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-01-06 16:12:12,088 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-01-06 16:12:12,089 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2021-01-06 16:12:12,093 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-01-06 16:12:12,093 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2021-01-06 16:12:12,093 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset Derived loop invariant: (((\result == 1 && !(a == #memory_$Pointer$[p1][p1])) && !(a == p1)) && unknown-#memory_int-unknown[#memory_$Pointer$[p1][p1]][#memory_$Pointer$[p1][p1]] == 0) && a == 4 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 15 SDslu, 12 SDs, 0 SdLazy, 21 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 5 NumberOfFragments, 38 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 816 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...