java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-666feb3-m [2018-04-11 16:28:41,974 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-04-11 16:28:41,974 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-04-11 16:28:41,985 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-04-11 16:28:41,986 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-04-11 16:28:41,986 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-04-11 16:28:41,987 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-04-11 16:28:41,989 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-04-11 16:28:41,991 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-04-11 16:28:41,991 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-04-11 16:28:41,992 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-04-11 16:28:41,992 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-04-11 16:28:41,994 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-04-11 16:28:41,995 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-04-11 16:28:41,996 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-04-11 16:28:41,997 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-04-11 16:28:41,999 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-04-11 16:28:42,000 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-04-11 16:28:42,001 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-04-11 16:28:42,002 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-04-11 16:28:42,004 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-04-11 16:28:42,004 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-04-11 16:28:42,004 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-04-11 16:28:42,005 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-04-11 16:28:42,005 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-04-11 16:28:42,006 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-04-11 16:28:42,006 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-04-11 16:28:42,007 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-04-11 16:28:42,007 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-04-11 16:28:42,007 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-04-11 16:28:42,008 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-04-11 16:28:42,008 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-04-11 16:28:42,028 INFO L110 SettingsManager]: Loading preferences was successful [2018-04-11 16:28:42,029 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-04-11 16:28:42,030 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-04-11 16:28:42,030 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-04-11 16:28:42,030 INFO L133 SettingsManager]: * Use SBE=true [2018-04-11 16:28:42,030 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-04-11 16:28:42,030 INFO L133 SettingsManager]: * sizeof long=4 [2018-04-11 16:28:42,030 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-04-11 16:28:42,031 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-04-11 16:28:42,031 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-04-11 16:28:42,031 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-04-11 16:28:42,031 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-04-11 16:28:42,031 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-04-11 16:28:42,031 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-04-11 16:28:42,031 INFO L133 SettingsManager]: * sizeof long double=12 [2018-04-11 16:28:42,032 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-04-11 16:28:42,032 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-04-11 16:28:42,032 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-04-11 16:28:42,032 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-04-11 16:28:42,032 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-04-11 16:28:42,032 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-04-11 16:28:42,033 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-04-11 16:28:42,033 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-04-11 16:28:42,033 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-04-11 16:28:42,055 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-04-11 16:28:42,066 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully (re)initialized [2018-04-11 16:28:42,069 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-04-11 16:28:42,071 INFO L271 PluginConnector]: Initializing CDTParser... [2018-04-11 16:28:42,071 INFO L276 PluginConnector]: CDTParser initialized [2018-04-11 16:28:42,071 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-04-11 16:28:42,129 ERROR L339 mateJobChangeAdapter]: Error during toolchain job processing: java.io.FileNotFoundException: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/.metadata/.plugins/org.eclipse.core.resources/.projects/FLAGd52ab4747/.markers.snap (No such file or directory) at java.io.FileOutputStream.open0(Native Method) at java.io.FileOutputStream.open(FileOutputStream.java:270) at java.io.FileOutputStream.(FileOutputStream.java:213) at java.io.FileOutputStream.(FileOutputStream.java:133) at org.eclipse.core.internal.localstore.SafeChunkyOutputStream.(SafeChunkyOutputStream.java:45) at org.eclipse.core.internal.localstore.SafeChunkyOutputStream.(SafeChunkyOutputStream.java:41) at org.eclipse.core.internal.resources.SaveManager.visitAndSnap(SaveManager.java:1769) at org.eclipse.core.internal.resources.SaveManager.visitAndSnap(SaveManager.java:1853) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1222) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1163) at org.eclipse.core.internal.resources.DelayedSnapshotJob.run(DelayedSnapshotJob.java:52) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-04-11 16:28:42,375 INFO L225 CDTParser]: Created temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGa2d31a31b [2018-04-11 16:28:42,475 INFO L287 CDTParser]: IsIndexed: true [2018-04-11 16:28:42,475 INFO L288 CDTParser]: Found 1 translation units. [2018-04-11 16:28:42,475 INFO L168 CDTParser]: Scanning ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-04-11 16:28:42,476 INFO L210 ultiparseSymbolTable]: Include resolver: [2018-04-11 16:28:42,476 INFO L215 ultiparseSymbolTable]: [2018-04-11 16:28:42,476 INFO L218 ultiparseSymbolTable]: Function table: [2018-04-11 16:28:42,476 INFO L221 ultiparseSymbolTable]: Function definition of null ('main') in ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-04-11 16:28:42,476 INFO L221 ultiparseSymbolTable]: Function definition of __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__foo ('foo') in ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-04-11 16:28:42,476 INFO L227 ultiparseSymbolTable]: Global variable table: [2018-04-11 16:28:42,476 INFO L233 ultiparseSymbolTable]: [2018-04-11 16:28:42,508 INFO L330 CDTParser]: Deleted temporary CDT project at /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/FLAGa2d31a31b [2018-04-11 16:28:42,512 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-04-11 16:28:42,513 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-04-11 16:28:42,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-04-11 16:28:42,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-04-11 16:28:42,519 ERROR L339 mateJobChangeAdapter]: Error during toolchain job processing: java.io.FileNotFoundException: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/data/.metadata/.plugins/org.eclipse.core.resources/.projects/FLAGd52ab4747/.markers.snap (No such file or directory) at java.io.FileOutputStream.open0(Native Method) at java.io.FileOutputStream.open(FileOutputStream.java:270) at java.io.FileOutputStream.(FileOutputStream.java:213) at java.io.FileOutputStream.(FileOutputStream.java:133) at org.eclipse.core.internal.localstore.SafeChunkyOutputStream.(SafeChunkyOutputStream.java:45) at org.eclipse.core.internal.localstore.SafeChunkyOutputStream.(SafeChunkyOutputStream.java:41) at org.eclipse.core.internal.resources.SaveManager.visitAndSnap(SaveManager.java:1769) at org.eclipse.core.internal.resources.SaveManager.visitAndSnap(SaveManager.java:1853) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1222) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1163) at org.eclipse.core.internal.resources.DelayedSnapshotJob.run(DelayedSnapshotJob.java:52) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-04-11 16:28:42,520 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-04-11 16:28:42,520 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 04:28:42" (1/1) ... [2018-04-11 16:28:42,522 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@712c7ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:28:42, skipping insertion in model container [2018-04-11 16:28:42,522 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.04 04:28:42" (1/1) ... [2018-04-11 16:28:42,535 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 16:28:42,543 INFO L167 Dispatcher]: Using SV-COMP mode [2018-04-11 16:28:42,641 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 16:28:42,659 INFO L175 PostProcessor]: Settings: Checked method=main [2018-04-11 16:28:42,663 INFO L100 SccComputation]: Graph consists of 0 InCaSumBalls and 9 non ball SCCs. Number of states in SCCs 9. [2018-04-11 16:28:42,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:28:42 WrapperNode [2018-04-11 16:28:42,669 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-04-11 16:28:42,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-04-11 16:28:42,670 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-04-11 16:28:42,670 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-04-11 16:28:42,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:28:42" (1/1) ... [2018-04-11 16:28:42,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:28:42" (1/1) ... [2018-04-11 16:28:42,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:28:42" (1/1) ... [2018-04-11 16:28:42,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:28:42" (1/1) ... [2018-04-11 16:28:42,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:28:42" (1/1) ... [2018-04-11 16:28:42,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:28:42" (1/1) ... [2018-04-11 16:28:42,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:28:42" (1/1) ... [2018-04-11 16:28:42,693 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-04-11 16:28:42,694 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-04-11 16:28:42,694 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-04-11 16:28:42,694 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-04-11 16:28:42,695 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:28:42" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/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 [2018-04-11 16:28:42,733 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-04-11 16:28:42,733 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-04-11 16:28:42,734 INFO L136 BoogieDeclarations]: Found implementation of procedure __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__foo [2018-04-11 16:28:42,734 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-04-11 16:28:42,734 INFO L128 BoogieDeclarations]: Found specification of procedure __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__foo [2018-04-11 16:28:42,734 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-04-11 16:28:42,734 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-04-11 16:28:42,734 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-04-11 16:28:42,734 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-04-11 16:28:42,734 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-04-11 16:28:42,734 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-04-11 16:28:42,734 INFO L128 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-04-11 16:28:42,734 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-04-11 16:28:42,944 INFO L259 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-04-11 16:28:42,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 04:28:42 BoogieIcfgContainer [2018-04-11 16:28:42,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-04-11 16:28:42,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-04-11 16:28:42,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-04-11 16:28:42,949 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-04-11 16:28:42,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.04 04:28:42" (1/3) ... [2018-04-11 16:28:42,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1419c332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 04:28:42, skipping insertion in model container [2018-04-11 16:28:42,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.04 04:28:42" (2/3) ... [2018-04-11 16:28:42,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1419c332 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.04 04:28:42, skipping insertion in model container [2018-04-11 16:28:42,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.04 04:28:42" (3/3) ... [2018-04-11 16:28:42,953 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c [2018-04-11 16:28:42,961 INFO L131 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-04-11 16:28:42,967 INFO L143 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2018-04-11 16:28:43,002 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-04-11 16:28:43,003 INFO L369 AbstractCegarLoop]: Interprodecural is true [2018-04-11 16:28:43,003 INFO L370 AbstractCegarLoop]: Hoare is false [2018-04-11 16:28:43,003 INFO L371 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-04-11 16:28:43,003 INFO L372 AbstractCegarLoop]: Backedges is TWOTRACK [2018-04-11 16:28:43,003 INFO L373 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-04-11 16:28:43,003 INFO L374 AbstractCegarLoop]: Difference is false [2018-04-11 16:28:43,003 INFO L375 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-04-11 16:28:43,004 INFO L380 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-04-11 16:28:43,004 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-04-11 16:28:43,016 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2018-04-11 16:28:43,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-04-11 16:28:43,024 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:28:43,025 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:28:43,026 INFO L408 AbstractCegarLoop]: === Iteration 1 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 16:28:43,029 INFO L82 PathProgramCache]: Analyzing trace with hash -895474378, now seen corresponding path program 1 times [2018-04-11 16:28:43,030 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:28:43,030 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:28:43,060 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:43,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:28:43,061 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:28:43,099 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:28:43,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:28:43,153 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:28:43,153 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 16:28:43,154 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 16:28:43,162 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 16:28:43,163 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 16:28:43,164 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2018-04-11 16:28:43,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:28:43,217 INFO L93 Difference]: Finished difference Result 63 states and 68 transitions. [2018-04-11 16:28:43,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 16:28:43,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-04-11 16:28:43,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:28:43,228 INFO L225 Difference]: With dead ends: 63 [2018-04-11 16:28:43,228 INFO L226 Difference]: Without dead ends: 59 [2018-04-11 16:28:43,230 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 16:28:43,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2018-04-11 16:28:43,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 49. [2018-04-11 16:28:43,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-04-11 16:28:43,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2018-04-11 16:28:43,259 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 11 [2018-04-11 16:28:43,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:28:43,259 INFO L459 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2018-04-11 16:28:43,259 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 16:28:43,259 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2018-04-11 16:28:43,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-04-11 16:28:43,260 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:28:43,260 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:28:43,260 INFO L408 AbstractCegarLoop]: === Iteration 2 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 16:28:43,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1597342241, now seen corresponding path program 1 times [2018-04-11 16:28:43,260 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:28:43,260 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:28:43,261 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:43,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:28:43,262 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:43,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:28:43,276 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:28:43,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:28:43,309 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:28:43,310 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-04-11 16:28:43,311 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-04-11 16:28:43,311 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-04-11 16:28:43,311 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 16:28:43,312 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand 3 states. [2018-04-11 16:28:43,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:28:43,339 INFO L93 Difference]: Finished difference Result 60 states and 64 transitions. [2018-04-11 16:28:43,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-04-11 16:28:43,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2018-04-11 16:28:43,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:28:43,341 INFO L225 Difference]: With dead ends: 60 [2018-04-11 16:28:43,341 INFO L226 Difference]: Without dead ends: 60 [2018-04-11 16:28:43,342 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-04-11 16:28:43,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2018-04-11 16:28:43,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 52. [2018-04-11 16:28:43,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-04-11 16:28:43,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 56 transitions. [2018-04-11 16:28:43,347 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 56 transitions. Word has length 16 [2018-04-11 16:28:43,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:28:43,347 INFO L459 AbstractCegarLoop]: Abstraction has 52 states and 56 transitions. [2018-04-11 16:28:43,347 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-04-11 16:28:43,347 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 56 transitions. [2018-04-11 16:28:43,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 16:28:43,348 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:28:43,348 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:28:43,348 INFO L408 AbstractCegarLoop]: === Iteration 3 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 16:28:43,348 INFO L82 PathProgramCache]: Analyzing trace with hash -2021997981, now seen corresponding path program 1 times [2018-04-11 16:28:43,348 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:28:43,348 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:28:43,349 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:43,349 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:28:43,349 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:43,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:28:43,360 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:28:43,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:28:43,396 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:28:43,396 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 16:28:43,396 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 16:28:43,396 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 16:28:43,397 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-04-11 16:28:43,397 INFO L87 Difference]: Start difference. First operand 52 states and 56 transitions. Second operand 5 states. [2018-04-11 16:28:43,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:28:43,456 INFO L93 Difference]: Finished difference Result 51 states and 55 transitions. [2018-04-11 16:28:43,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 16:28:43,456 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2018-04-11 16:28:43,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:28:43,457 INFO L225 Difference]: With dead ends: 51 [2018-04-11 16:28:43,457 INFO L226 Difference]: Without dead ends: 51 [2018-04-11 16:28:43,458 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-04-11 16:28:43,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-04-11 16:28:43,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2018-04-11 16:28:43,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-04-11 16:28:43,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-04-11 16:28:43,463 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 17 [2018-04-11 16:28:43,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:28:43,463 INFO L459 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-04-11 16:28:43,464 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 16:28:43,464 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-04-11 16:28:43,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-04-11 16:28:43,464 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:28:43,464 INFO L355 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:28:43,464 INFO L408 AbstractCegarLoop]: === Iteration 4 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 16:28:43,465 INFO L82 PathProgramCache]: Analyzing trace with hash -2021997980, now seen corresponding path program 1 times [2018-04-11 16:28:43,465 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:28:43,465 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:28:43,466 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:43,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:28:43,466 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:43,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:28:43,476 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:28:43,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:28:43,544 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:28:43,544 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-04-11 16:28:43,545 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 16:28:43,545 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 16:28:43,545 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-11 16:28:43,545 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 6 states. [2018-04-11 16:28:43,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:28:43,606 INFO L93 Difference]: Finished difference Result 53 states and 57 transitions. [2018-04-11 16:28:43,607 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 16:28:43,607 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2018-04-11 16:28:43,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:28:43,607 INFO L225 Difference]: With dead ends: 53 [2018-04-11 16:28:43,607 INFO L226 Difference]: Without dead ends: 53 [2018-04-11 16:28:43,608 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-04-11 16:28:43,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-04-11 16:28:43,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 50. [2018-04-11 16:28:43,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-04-11 16:28:43,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 54 transitions. [2018-04-11 16:28:43,610 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 54 transitions. Word has length 17 [2018-04-11 16:28:43,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:28:43,610 INFO L459 AbstractCegarLoop]: Abstraction has 50 states and 54 transitions. [2018-04-11 16:28:43,610 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 16:28:43,610 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 54 transitions. [2018-04-11 16:28:43,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-04-11 16:28:43,611 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:28:43,611 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:28:43,611 INFO L408 AbstractCegarLoop]: === Iteration 5 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 16:28:43,611 INFO L82 PathProgramCache]: Analyzing trace with hash -869005287, now seen corresponding path program 1 times [2018-04-11 16:28:43,611 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:28:43,611 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:28:43,612 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:43,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:28:43,612 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:28:43,618 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:28:43,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:28:43,662 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:28:43,662 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-04-11 16:28:43,662 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-04-11 16:28:43,662 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-04-11 16:28:43,662 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-04-11 16:28:43,662 INFO L87 Difference]: Start difference. First operand 50 states and 54 transitions. Second operand 7 states. [2018-04-11 16:28:43,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:28:43,728 INFO L93 Difference]: Finished difference Result 72 states and 77 transitions. [2018-04-11 16:28:43,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-04-11 16:28:43,728 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-04-11 16:28:43,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:28:43,729 INFO L225 Difference]: With dead ends: 72 [2018-04-11 16:28:43,729 INFO L226 Difference]: Without dead ends: 72 [2018-04-11 16:28:43,729 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-04-11 16:28:43,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-04-11 16:28:43,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 63. [2018-04-11 16:28:43,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-04-11 16:28:43,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2018-04-11 16:28:43,732 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 22 [2018-04-11 16:28:43,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:28:43,732 INFO L459 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2018-04-11 16:28:43,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-04-11 16:28:43,732 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2018-04-11 16:28:43,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-04-11 16:28:43,733 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:28:43,733 INFO L355 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:28:43,733 INFO L408 AbstractCegarLoop]: === Iteration 6 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 16:28:43,733 INFO L82 PathProgramCache]: Analyzing trace with hash -994035242, now seen corresponding path program 1 times [2018-04-11 16:28:43,733 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:28:43,733 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:28:43,734 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:43,734 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:28:43,734 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:43,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:28:43,742 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:28:43,773 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:28:43,773 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:28:43,773 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-04-11 16:28:43,773 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-04-11 16:28:43,773 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-04-11 16:28:43,774 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-11 16:28:43,774 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 5 states. [2018-04-11 16:28:43,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:28:43,813 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2018-04-11 16:28:43,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 16:28:43,814 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-04-11 16:28:43,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:28:43,814 INFO L225 Difference]: With dead ends: 72 [2018-04-11 16:28:43,814 INFO L226 Difference]: Without dead ends: 72 [2018-04-11 16:28:43,815 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-04-11 16:28:43,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-04-11 16:28:43,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 60. [2018-04-11 16:28:43,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-04-11 16:28:43,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2018-04-11 16:28:43,822 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 23 [2018-04-11 16:28:43,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:28:43,823 INFO L459 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2018-04-11 16:28:43,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-04-11 16:28:43,823 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-04-11 16:28:43,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-04-11 16:28:43,824 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:28:43,824 INFO L355 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:28:43,824 INFO L408 AbstractCegarLoop]: === Iteration 7 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 16:28:43,824 INFO L82 PathProgramCache]: Analyzing trace with hash 701046357, now seen corresponding path program 1 times [2018-04-11 16:28:43,824 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:28:43,825 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:28:43,825 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:43,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:28:43,826 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:43,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:28:43,834 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:28:43,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:28:43,889 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:28:43,889 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:28:43,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:28:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:28:43,910 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:28:43,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-04-11 16:28:43,943 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 16:28:43,943 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 10 [2018-04-11 16:28:43,944 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 16:28:43,945 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 16:28:43,945 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-04-11 16:28:43,945 INFO L87 Difference]: Start difference. First operand 60 states and 65 transitions. Second operand 10 states. [2018-04-11 16:28:44,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:28:44,101 INFO L93 Difference]: Finished difference Result 102 states and 111 transitions. [2018-04-11 16:28:44,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-04-11 16:28:44,101 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 31 [2018-04-11 16:28:44,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:28:44,102 INFO L225 Difference]: With dead ends: 102 [2018-04-11 16:28:44,102 INFO L226 Difference]: Without dead ends: 102 [2018-04-11 16:28:44,102 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2018-04-11 16:28:44,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2018-04-11 16:28:44,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 69. [2018-04-11 16:28:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-04-11 16:28:44,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2018-04-11 16:28:44,106 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 31 [2018-04-11 16:28:44,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:28:44,106 INFO L459 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2018-04-11 16:28:44,106 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 16:28:44,106 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2018-04-11 16:28:44,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-04-11 16:28:44,106 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:28:44,106 INFO L355 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:28:44,106 INFO L408 AbstractCegarLoop]: === Iteration 8 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 16:28:44,107 INFO L82 PathProgramCache]: Analyzing trace with hash -301543559, now seen corresponding path program 1 times [2018-04-11 16:28:44,107 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:28:44,107 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:28:44,107 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:44,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:28:44,107 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:44,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:28:44,116 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:28:44,165 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-04-11 16:28:44,166 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-04-11 16:28:44,166 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-04-11 16:28:44,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 16:28:44,166 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 16:28:44,166 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-04-11 16:28:44,166 INFO L87 Difference]: Start difference. First operand 69 states and 75 transitions. Second operand 6 states. [2018-04-11 16:28:44,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:28:44,220 INFO L93 Difference]: Finished difference Result 83 states and 87 transitions. [2018-04-11 16:28:44,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 16:28:44,220 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-04-11 16:28:44,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:28:44,221 INFO L225 Difference]: With dead ends: 83 [2018-04-11 16:28:44,221 INFO L226 Difference]: Without dead ends: 80 [2018-04-11 16:28:44,221 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-04-11 16:28:44,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2018-04-11 16:28:44,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 69. [2018-04-11 16:28:44,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-04-11 16:28:44,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2018-04-11 16:28:44,226 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 34 [2018-04-11 16:28:44,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:28:44,226 INFO L459 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2018-04-11 16:28:44,226 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 16:28:44,226 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2018-04-11 16:28:44,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-04-11 16:28:44,227 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:28:44,227 INFO L355 BasicCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:28:44,227 INFO L408 AbstractCegarLoop]: === Iteration 9 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 16:28:44,227 INFO L82 PathProgramCache]: Analyzing trace with hash 425510769, now seen corresponding path program 2 times [2018-04-11 16:28:44,228 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:28:44,228 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:28:44,228 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:44,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:28:44,229 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:44,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:28:44,241 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:28:44,306 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-04-11 16:28:44,306 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:28:44,306 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:28:44,307 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:28:44,325 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-04-11 16:28:44,325 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:28:44,328 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:28:44,349 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 13 proven. 3 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-04-11 16:28:44,349 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 16:28:44,350 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 3] total 9 [2018-04-11 16:28:44,350 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 16:28:44,350 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 16:28:44,350 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-04-11 16:28:44,350 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand 10 states. [2018-04-11 16:28:44,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:28:44,425 INFO L93 Difference]: Finished difference Result 90 states and 96 transitions. [2018-04-11 16:28:44,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-04-11 16:28:44,425 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 40 [2018-04-11 16:28:44,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:28:44,426 INFO L225 Difference]: With dead ends: 90 [2018-04-11 16:28:44,426 INFO L226 Difference]: Without dead ends: 90 [2018-04-11 16:28:44,426 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2018-04-11 16:28:44,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2018-04-11 16:28:44,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 65. [2018-04-11 16:28:44,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-04-11 16:28:44,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2018-04-11 16:28:44,430 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 40 [2018-04-11 16:28:44,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:28:44,431 INFO L459 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2018-04-11 16:28:44,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 16:28:44,431 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2018-04-11 16:28:44,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-04-11 16:28:44,432 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:28:44,432 INFO L355 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:28:44,432 INFO L408 AbstractCegarLoop]: === Iteration 10 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 16:28:44,432 INFO L82 PathProgramCache]: Analyzing trace with hash -297393667, now seen corresponding path program 1 times [2018-04-11 16:28:44,432 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:28:44,432 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:28:44,433 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:44,433 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-04-11 16:28:44,433 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:44,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:28:44,443 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:28:44,474 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-04-11 16:28:44,474 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:28:44,474 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:28:44,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:28:44,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:28:44,490 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:28:44,503 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2018-04-11 16:28:44,504 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-04-11 16:28:44,504 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-04-11 16:28:44,504 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-04-11 16:28:44,504 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-04-11 16:28:44,504 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-04-11 16:28:44,505 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 6 states. [2018-04-11 16:28:44,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:28:44,556 INFO L93 Difference]: Finished difference Result 98 states and 103 transitions. [2018-04-11 16:28:44,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-04-11 16:28:44,559 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2018-04-11 16:28:44,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:28:44,560 INFO L225 Difference]: With dead ends: 98 [2018-04-11 16:28:44,560 INFO L226 Difference]: Without dead ends: 98 [2018-04-11 16:28:44,560 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-04-11 16:28:44,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-04-11 16:28:44,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 76. [2018-04-11 16:28:44,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2018-04-11 16:28:44,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 82 transitions. [2018-04-11 16:28:44,564 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 82 transitions. Word has length 49 [2018-04-11 16:28:44,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:28:44,564 INFO L459 AbstractCegarLoop]: Abstraction has 76 states and 82 transitions. [2018-04-11 16:28:44,564 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-04-11 16:28:44,565 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 82 transitions. [2018-04-11 16:28:44,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-04-11 16:28:44,566 INFO L347 BasicCegarLoop]: Found error trace [2018-04-11 16:28:44,566 INFO L355 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-04-11 16:28:44,567 INFO L408 AbstractCegarLoop]: === Iteration 11 === [mainErr1AssertViolationARRAY_INDEX, mainErr2EnsuresViolationMEMORY_LEAK, mainErr0AssertViolationARRAY_INDEX, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr2RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr1RequiresViolation, __U_MULTI_fArraysWithLenghtAtDeclaration_true_valid_memsafety_true_termination_c__fooErr0AssertViolationARRAY_INDEX]=== [2018-04-11 16:28:44,567 INFO L82 PathProgramCache]: Analyzing trace with hash -1497535843, now seen corresponding path program 2 times [2018-04-11 16:28:44,567 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-04-11 16:28:44,567 INFO L68 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-04-11 16:28:44,568 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:44,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-04-11 16:28:44,568 INFO L119 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-04-11 16:28:44,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-04-11 16:28:44,578 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-04-11 16:28:44,613 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-04-11 16:28:44,613 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-04-11 16:28:44,613 INFO L213 ckRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-04-11 16:28:44,614 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-04-11 16:28:44,622 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-04-11 16:28:44,623 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-04-11 16:28:44,626 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-04-11 16:28:44,663 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:28:44,667 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-04-11 16:28:44,668 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:28:44,670 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:28:44,670 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-11 16:28:44,709 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:28:44,710 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-04-11 16:28:44,711 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:28:44,712 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:28:44,712 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-11 16:28:44,744 INFO L700 Elim1Store]: detected not equals via solver [2018-04-11 16:28:44,745 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-04-11 16:28:44,745 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-04-11 16:28:44,748 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-04-11 16:28:44,748 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-04-11 16:28:44,778 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_~#mask~0.base| Int)) (and (= (store |c_old(#valid)| |main_~#mask~0.base| 0) |c_#valid|) (= (select |c_old(#valid)| |main_~#mask~0.base|) 0))) is different from true [2018-04-11 16:28:44,790 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-04-11 16:28:44,791 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-04-11 16:28:44,791 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2018-04-11 16:28:44,791 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-04-11 16:28:44,791 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-04-11 16:28:44,792 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=51, Unknown=1, NotChecked=14, Total=90 [2018-04-11 16:28:44,792 INFO L87 Difference]: Start difference. First operand 76 states and 82 transitions. Second operand 10 states. [2018-04-11 16:28:45,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-04-11 16:28:45,060 INFO L93 Difference]: Finished difference Result 110 states and 115 transitions. [2018-04-11 16:28:45,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-04-11 16:28:45,060 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 61 [2018-04-11 16:28:45,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-04-11 16:28:45,061 INFO L225 Difference]: With dead ends: 110 [2018-04-11 16:28:45,061 INFO L226 Difference]: Without dead ends: 0 [2018-04-11 16:28:45,061 INFO L567 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 54 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=250, Unknown=1, NotChecked=34, Total=380 [2018-04-11 16:28:45,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-04-11 16:28:45,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-04-11 16:28:45,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-04-11 16:28:45,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-04-11 16:28:45,062 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2018-04-11 16:28:45,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-04-11 16:28:45,062 INFO L459 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-04-11 16:28:45,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-04-11 16:28:45,063 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-04-11 16:28:45,063 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-04-11 16:28:45,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.04 04:28:45 BoogieIcfgContainer [2018-04-11 16:28:45,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-04-11 16:28:45,068 INFO L168 Benchmark]: Toolchain (without parser) took 2555.47 ms. Allocated memory was 395.8 MB in the beginning and 673.2 MB in the end (delta: 277.3 MB). Free memory was 333.3 MB in the beginning and 641.8 MB in the end (delta: -308.5 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 16:28:45,069 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 395.8 MB. Free memory is still 354.2 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 16:28:45,069 INFO L168 Benchmark]: CACSL2BoogieTranslator took 155.44 ms. Allocated memory is still 395.8 MB. Free memory was 332.8 MB in the beginning and 324.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 5.3 GB. [2018-04-11 16:28:45,069 INFO L168 Benchmark]: Boogie Preprocessor took 23.73 ms. Allocated memory is still 395.8 MB. Free memory was 324.3 MB in the beginning and 321.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-04-11 16:28:45,070 INFO L168 Benchmark]: RCFGBuilder took 251.82 ms. Allocated memory was 395.8 MB in the beginning and 606.1 MB in the end (delta: 210.2 MB). Free memory was 321.6 MB in the beginning and 567.1 MB in the end (delta: -245.4 MB). Peak memory consumption was 24.5 MB. Max. memory is 5.3 GB. [2018-04-11 16:28:45,070 INFO L168 Benchmark]: TraceAbstraction took 2120.97 ms. Allocated memory was 606.1 MB in the beginning and 673.2 MB in the end (delta: 67.1 MB). Free memory was 567.1 MB in the beginning and 641.8 MB in the end (delta: -74.8 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-04-11 16:28:45,071 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 395.8 MB. Free memory is still 354.2 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 155.44 ms. Allocated memory is still 395.8 MB. Free memory was 332.8 MB in the beginning and 324.3 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 23.73 ms. Allocated memory is still 395.8 MB. Free memory was 324.3 MB in the beginning and 321.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 251.82 ms. Allocated memory was 395.8 MB in the beginning and 606.1 MB in the end (delta: 210.2 MB). Free memory was 321.6 MB in the beginning and 567.1 MB in the end (delta: -245.4 MB). Peak memory consumption was 24.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2120.97 ms. Allocated memory was 606.1 MB in the beginning and 673.2 MB in the end (delta: 67.1 MB). Free memory was 567.1 MB in the beginning and 641.8 MB in the end (delta: -74.8 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - PositiveResult [Line: 23]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 27]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: array index is always in bounds For all program executions holds that array index is always in bounds at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 46 locations, 6 error locations. SAFE Result, 2.0s OverallTime, 11 OverallIterations, 4 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 366 SDtfs, 545 SDslu, 840 SDs, 0 SdLazy, 812 SolverSat, 106 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 260 GetRequests, 180 SyntacticMatches, 6 SemanticMatches, 74 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=76occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 133 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 502 NumberOfCodeBlocks, 460 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 487 ConstructedInterpolants, 26 QuantifiedInterpolants, 61520 SizeOfPredicates, 3 NumberOfNonLiveVariables, 372 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 15 InterpolantComputations, 8 PerfectInterpolantSequences, 152/204 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-04-11_16-28-45-078.csv Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/ArraysWithLenghtAtDeclaration_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-04-11_16-28-45-078.csv Received shutdown request...