/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-dcfa08f [2020-12-23 06:17:48,002 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-23 06:17:48,005 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-23 06:17:48,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-23 06:17:48,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-23 06:17:48,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-23 06:17:48,054 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-23 06:17:48,060 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-23 06:17:48,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-23 06:17:48,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-23 06:17:48,074 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-23 06:17:48,078 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-23 06:17:48,079 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-23 06:17:48,081 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-23 06:17:48,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-23 06:17:48,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-23 06:17:48,101 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-23 06:17:48,103 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-23 06:17:48,112 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-23 06:17:48,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-23 06:17:48,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-23 06:17:48,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-23 06:17:48,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-23 06:17:48,130 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-23 06:17:48,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-23 06:17:48,140 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-23 06:17:48,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-23 06:17:48,143 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-23 06:17:48,144 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-23 06:17:48,145 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-23 06:17:48,145 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-23 06:17:48,146 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-23 06:17:48,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-23 06:17:48,149 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-23 06:17:48,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-23 06:17:48,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-23 06:17:48,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-23 06:17:48,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-23 06:17:48,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-23 06:17:48,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-23 06:17:48,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-23 06:17:48,166 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-23 06:17:48,215 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-23 06:17:48,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-23 06:17:48,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-23 06:17:48,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-23 06:17:48,220 INFO L138 SettingsManager]: * Use SBE=true [2020-12-23 06:17:48,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-23 06:17:48,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-23 06:17:48,221 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-23 06:17:48,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-23 06:17:48,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-23 06:17:48,222 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-23 06:17:48,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-23 06:17:48,223 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-23 06:17:48,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-23 06:17:48,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-23 06:17:48,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-23 06:17:48,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-23 06:17:48,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:17:48,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-23 06:17:48,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-23 06:17:48,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-23 06:17:48,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-23 06:17:48,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-23 06:17:48,225 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-23 06:17:48,226 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-23 06:17:48,226 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-23 06:17:48,627 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-23 06:17:48,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-23 06:17:48,656 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-23 06:17:48,658 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-23 06:17:48,658 INFO L275 PluginConnector]: CDTParser initialized [2020-12-23 06:17:48,659 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test05.c [2020-12-23 06:17:48,758 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7a18cea4c/3087298a597c4b3eb874093294aaf84e/FLAGb3aefb3ab [2020-12-23 06:17:49,401 INFO L306 CDTParser]: Found 1 translation units. [2020-12-23 06:17:49,401 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-bitabs/releaseScripts/default/sv-benchmarks/c/ldv-regression/test05.c [2020-12-23 06:17:49,415 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7a18cea4c/3087298a597c4b3eb874093294aaf84e/FLAGb3aefb3ab [2020-12-23 06:17:49,757 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/data/7a18cea4c/3087298a597c4b3eb874093294aaf84e [2020-12-23 06:17:49,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-23 06:17:49,762 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-23 06:17:49,764 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-23 06:17:49,764 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-23 06:17:49,768 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-23 06:17:49,769 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:17:49" (1/1) ... [2020-12-23 06:17:49,770 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 23.12 06:17:49, skipping insertion in model container [2020-12-23 06:17:49,770 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 06:17:49" (1/1) ... [2020-12-23 06:17:49,779 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-23 06:17:49,794 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,] [2020-12-23 06:17:49,960 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] [2020-12-23 06:17:49,964 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:17:49,975 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,] [2020-12-23 06:17:49,993 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] [2020-12-23 06:17:49,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-23 06:17:50,011 INFO L208 MainTranslator]: Completed translation [2020-12-23 06:17:50,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:50 WrapperNode [2020-12-23 06:17:50,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-23 06:17:50,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-23 06:17:50,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-23 06:17:50,014 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-23 06:17:50,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:50" (1/1) ... [2020-12-23 06:17:50,031 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:50" (1/1) ... [2020-12-23 06:17:50,054 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-23 06:17:50,055 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-23 06:17:50,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-23 06:17:50,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-23 06:17:50,065 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:50" (1/1) ... [2020-12-23 06:17:50,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:50" (1/1) ... [2020-12-23 06:17:50,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:50" (1/1) ... [2020-12-23 06:17:50,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:50" (1/1) ... [2020-12-23 06:17:50,074 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:50" (1/1) ... [2020-12-23 06:17:50,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:50" (1/1) ... [2020-12-23 06:17:50,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:50" (1/1) ... [2020-12-23 06:17:50,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-23 06:17:50,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-23 06:17:50,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-23 06:17:50,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-23 06:17:50,084 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:50" (1/1) ... No working directory specified, using /storage/repos/ultimate-bitabs/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-23 06:17:50,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-12-23 06:17:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-23 06:17:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-23 06:17:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-23 06:17:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-23 06:17:50,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-23 06:17:50,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-23 06:17:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-23 06:17:50,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-23 06:17:50,799 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-23 06:17:50,800 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2020-12-23 06:17:50,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:17:50 BoogieIcfgContainer [2020-12-23 06:17:50,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-23 06:17:50,809 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-23 06:17:50,809 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-23 06:17:50,814 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-23 06:17:50,814 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 06:17:49" (1/3) ... [2020-12-23 06:17:50,816 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 23.12 06:17:50, skipping insertion in model container [2020-12-23 06:17:50,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 06:17:50" (2/3) ... [2020-12-23 06:17:50,817 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 23.12 06:17:50, skipping insertion in model container [2020-12-23 06:17:50,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:17:50" (3/3) ... [2020-12-23 06:17:50,819 INFO L111 eAbstractionObserver]: Analyzing ICFG test05.c [2020-12-23 06:17:50,826 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-23 06:17:50,831 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-23 06:17:50,854 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-23 06:17:50,899 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-23 06:17:50,900 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-23 06:17:50,900 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-23 06:17:50,900 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-23 06:17:50,900 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-23 06:17:50,900 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-23 06:17:50,900 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-23 06:17:50,901 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-23 06:17:50,919 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-12-23 06:17:50,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-23 06:17:50,924 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:17:50,925 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-23 06:17:50,925 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:17:50,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:17:50,931 INFO L82 PathProgramCache]: Analyzing trace with hash 889629870, now seen corresponding path program 1 times [2020-12-23 06:17:50,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:17:50,942 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632127669] [2020-12-23 06:17:50,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:17:51,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:17:51,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:17:51,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632127669] [2020-12-23 06:17:51,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:17:51,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-23 06:17:51,174 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150348750] [2020-12-23 06:17:51,179 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-23 06:17:51,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:17:51,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-23 06:17:51,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-23 06:17:51,198 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2020-12-23 06:17:51,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:17:51,222 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2020-12-23 06:17:51,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-23 06:17:51,225 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-12-23 06:17:51,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:17:51,234 INFO L225 Difference]: With dead ends: 20 [2020-12-23 06:17:51,235 INFO L226 Difference]: Without dead ends: 9 [2020-12-23 06:17:51,238 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 [2020-12-23 06:17:51,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-23 06:17:51,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-23 06:17:51,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-23 06:17:51,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-23 06:17:51,275 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2020-12-23 06:17:51,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:17:51,276 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-23 06:17:51,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-23 06:17:51,276 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-23 06:17:51,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-23 06:17:51,277 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:17:51,277 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:17:51,277 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-23 06:17:51,277 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:17:51,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:17:51,278 INFO L82 PathProgramCache]: Analyzing trace with hash 1804905807, now seen corresponding path program 1 times [2020-12-23 06:17:51,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:17:51,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487399184] [2020-12-23 06:17:51,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:17:51,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:17:51,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:17:51,385 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487399184] [2020-12-23 06:17:51,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:17:51,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-23 06:17:51,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788623202] [2020-12-23 06:17:51,387 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-23 06:17:51,387 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:17:51,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-23 06:17:51,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-23 06:17:51,389 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2020-12-23 06:17:51,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:17:51,427 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2020-12-23 06:17:51,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-23 06:17:51,428 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-12-23 06:17:51,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:17:51,429 INFO L225 Difference]: With dead ends: 11 [2020-12-23 06:17:51,429 INFO L226 Difference]: Without dead ends: 9 [2020-12-23 06:17:51,430 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-23 06:17:51,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-12-23 06:17:51,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-12-23 06:17:51,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-23 06:17:51,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2020-12-23 06:17:51,433 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 7 [2020-12-23 06:17:51,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:17:51,433 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2020-12-23 06:17:51,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-23 06:17:51,434 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-12-23 06:17:51,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-23 06:17:51,434 INFO L414 BasicCegarLoop]: Found error trace [2020-12-23 06:17:51,434 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-23 06:17:51,435 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-23 06:17:51,435 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-23 06:17:51,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-23 06:17:51,436 INFO L82 PathProgramCache]: Analyzing trace with hash 117506990, now seen corresponding path program 1 times [2020-12-23 06:17:51,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-23 06:17:51,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153559488] [2020-12-23 06:17:51,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-23 06:17:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-23 06:17:51,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-23 06:17:51,736 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153559488] [2020-12-23 06:17:51,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-23 06:17:51,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-23 06:17:51,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431427907] [2020-12-23 06:17:51,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-23 06:17:51,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-23 06:17:51,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-23 06:17:51,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-23 06:17:51,739 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 7 states. [2020-12-23 06:17:51,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-23 06:17:51,813 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2020-12-23 06:17:51,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-23 06:17:51,814 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2020-12-23 06:17:51,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-23 06:17:51,814 INFO L225 Difference]: With dead ends: 9 [2020-12-23 06:17:51,814 INFO L226 Difference]: Without dead ends: 0 [2020-12-23 06:17:51,815 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 [2020-12-23 06:17:51,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-23 06:17:51,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-23 06:17:51,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-23 06:17:51,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-23 06:17:51,817 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-12-23 06:17:51,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-23 06:17:51,817 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-23 06:17:51,817 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-23 06:17:51,817 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-23 06:17:51,817 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-23 06:17:51,818 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-23 06:17:51,820 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-23 06:17:51,848 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-23 06:17:51,848 INFO L189 CegarLoopUtils]: For program point L40(lines 40 42) no Hoare annotation was computed. [2020-12-23 06:17:51,848 INFO L189 CegarLoopUtils]: For program point L36(lines 36 38) no Hoare annotation was computed. [2020-12-23 06:17:51,849 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-23 06:17:51,849 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-23 06:17:51,849 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-23 06:17:51,849 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2020-12-23 06:17:51,850 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))) [2020-12-23 06:17:51,850 INFO L185 CegarLoopUtils]: At program point L47(lines 22 48) the Hoare annotation is: (= ULTIMATE.start_f_~a 4) [2020-12-23 06:17:51,850 INFO L189 CegarLoopUtils]: For program point L14(lines 14 19) no Hoare annotation was computed. [2020-12-23 06:17:51,850 INFO L185 CegarLoopUtils]: At program point L41(lines 22 48) the Hoare annotation is: false [2020-12-23 06:17:51,851 INFO L189 CegarLoopUtils]: For program point L6(lines 6 11) no Hoare annotation was computed. [2020-12-23 06:17:51,868 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-23 06:17:51,870 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-23 06:17:51,870 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-12-23 06:17:51,871 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-23 06:17:51,872 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-23 06:17:51,872 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-12-23 06:17:51,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 06:17:51 BoogieIcfgContainer [2020-12-23 06:17:51,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-23 06:17:51,876 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-23 06:17:51,876 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-23 06:17:51,877 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-23 06:17:51,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 06:17:50" (3/4) ... [2020-12-23 06:17:51,881 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-23 06:17:51,906 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2020-12-23 06:17:51,907 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-23 06:17:51,907 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 06:17:51,907 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-23 06:17:51,936 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 [2020-12-23 06:17:51,963 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/ldv-regression/test05.c-witness.graphml [2020-12-23 06:17:51,963 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-23 06:17:51,965 INFO L168 Benchmark]: Toolchain (without parser) took 2202.40 ms. Allocated memory is still 156.2 MB. Free memory was 131.7 MB in the beginning and 75.7 MB in the end (delta: 56.0 MB). Peak memory consumption was 56.7 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:51,965 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 156.2 MB. Free memory is still 128.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-23 06:17:51,966 INFO L168 Benchmark]: CACSL2BoogieTranslator took 248.82 ms. Allocated memory is still 156.2 MB. Free memory was 131.5 MB in the beginning and 121.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:51,967 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.47 ms. Allocated memory is still 156.2 MB. Free memory was 121.8 MB in the beginning and 120.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:51,968 INFO L168 Benchmark]: Boogie Preprocessor took 26.20 ms. Allocated memory is still 156.2 MB. Free memory was 120.1 MB in the beginning and 119.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:51,968 INFO L168 Benchmark]: RCFGBuilder took 722.99 ms. Allocated memory is still 156.2 MB. Free memory was 118.9 MB in the beginning and 136.0 MB in the end (delta: -17.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:51,969 INFO L168 Benchmark]: TraceAbstraction took 1067.10 ms. Allocated memory is still 156.2 MB. Free memory was 135.5 MB in the beginning and 78.9 MB in the end (delta: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:51,970 INFO L168 Benchmark]: Witness Printer took 86.72 ms. Allocated memory is still 156.2 MB. Free memory was 78.3 MB in the beginning and 75.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-23 06:17:51,974 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 156.2 MB. Free memory is still 128.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 248.82 ms. Allocated memory is still 156.2 MB. Free memory was 131.5 MB in the beginning and 121.8 MB in the end (delta: 9.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 41.47 ms. Allocated memory is still 156.2 MB. Free memory was 121.8 MB in the beginning and 120.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 26.20 ms. Allocated memory is still 156.2 MB. Free memory was 120.1 MB in the beginning and 119.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 722.99 ms. Allocated memory is still 156.2 MB. Free memory was 118.9 MB in the beginning and 136.0 MB in the end (delta: -17.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1067.10 ms. Allocated memory is still 156.2 MB. Free memory was 135.5 MB in the beginning and 78.9 MB in the end (delta: 56.6 MB). Peak memory consumption was 56.6 MB. Max. memory is 8.0 GB. * Witness Printer took 86.72 ms. Allocated memory is still 156.2 MB. Free memory was 78.3 MB in the beginning and 75.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$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 [2020-12-23 06:17:51,983 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-23 06:17:51,984 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-23 06:17:51,984 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2020-12-23 06:17:51,985 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-23 06:17:51,985 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2020-12-23 06:17:51,986 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: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, 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...