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 -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-30 01:09:13,746 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 01:09:13,748 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 01:09:13,768 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 01:09:13,768 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 01:09:13,770 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 01:09:13,771 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 01:09:13,773 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 01:09:13,776 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 01:09:13,777 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 01:09:13,782 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 01:09:13,783 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 01:09:13,784 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 01:09:13,785 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 01:09:13,787 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 01:09:13,790 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 01:09:13,796 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 01:09:13,800 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 01:09:13,802 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 01:09:13,803 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 01:09:13,806 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-30 01:09:13,806 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-30 01:09:13,806 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-30 01:09:13,807 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-30 01:09:13,809 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-30 01:09:13,810 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-30 01:09:13,811 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-30 01:09:13,812 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-30 01:09:13,812 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-30 01:09:13,812 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 01:09:13,813 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 01:09:13,813 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-30 01:09:13,829 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 01:09:13,829 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 01:09:13,830 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 01:09:13,830 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 01:09:13,830 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 01:09:13,831 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 01:09:13,831 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 01:09:13,831 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 01:09:13,832 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 01:09:13,832 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 01:09:13,832 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 01:09:13,832 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 01:09:13,832 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 01:09:13,833 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 01:09:13,833 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 01:09:13,833 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 01:09:13,833 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 01:09:13,833 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 01:09:13,834 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 01:09:13,834 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 01:09:13,834 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 01:09:13,834 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 01:09:13,834 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 01:09:13,835 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 01:09:13,835 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 01:09:13,835 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 01:09:13,835 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 01:09:13,835 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 01:09:13,836 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 01:09:13,836 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 01:09:13,836 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 01:09:13,836 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 01:09:13,837 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 01:09:13,838 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 01:09:13,918 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 01:09:13,932 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 01:09:13,936 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 01:09:13,940 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 01:09:13,941 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 01:09:13,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i [2018-01-30 01:09:14,254 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 01:09:14,263 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-30 01:09:14,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 01:09:14,265 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 01:09:14,272 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 01:09:14,273 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:09:14" (1/1) ... [2018-01-30 01:09:14,276 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ade6eb3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:14, skipping insertion in model container [2018-01-30 01:09:14,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 01:09:14" (1/1) ... [2018-01-30 01:09:14,296 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:09:14,403 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 01:09:14,582 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:09:14,606 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 01:09:14,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:14 WrapperNode [2018-01-30 01:09:14,615 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 01:09:14,616 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 01:09:14,616 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 01:09:14,617 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 01:09:14,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:14" (1/1) ... [2018-01-30 01:09:14,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:14" (1/1) ... [2018-01-30 01:09:14,658 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:14" (1/1) ... [2018-01-30 01:09:14,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:14" (1/1) ... [2018-01-30 01:09:14,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:14" (1/1) ... [2018-01-30 01:09:14,669 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:14" (1/1) ... [2018-01-30 01:09:14,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:14" (1/1) ... [2018-01-30 01:09:14,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 01:09:14,674 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 01:09:14,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 01:09:14,674 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 01:09:14,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:14" (1/1) ... No working directory specified, using /storage/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 [2018-01-30 01:09:14,745 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 01:09:14,745 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 01:09:14,746 INFO L136 BoogieDeclarations]: Found implementation of procedure cmemchr [2018-01-30 01:09:14,746 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 01:09:14,746 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-30 01:09:14,746 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-30 01:09:14,746 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 01:09:14,746 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 01:09:14,747 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 01:09:14,747 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 01:09:14,747 INFO L128 BoogieDeclarations]: Found specification of procedure cmemchr [2018-01-30 01:09:14,747 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 01:09:14,747 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 01:09:14,747 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 01:09:15,298 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 01:09:15,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:09:15 BoogieIcfgContainer [2018-01-30 01:09:15,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 01:09:15,300 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-30 01:09:15,302 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-30 01:09:15,303 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-30 01:09:15,310 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:09:15" (1/1) ... [2018-01-30 01:09:15,325 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-30 01:09:15,326 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-30 01:09:15,327 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-30 01:09:15,413 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 3 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-30 01:09:15,457 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-30 01:09:15,564 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-30 01:09:21,656 INFO L311 AbstractInterpreter]: Visited 64 different actions 293 times. Merged at 31 different actions 122 times. Never widened. Found 18 fixpoints after 2 different actions. Largest state had 35 variables. [2018-01-30 01:09:21,661 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-30 01:09:21,679 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 1 [2018-01-30 01:09:21,679 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-30 01:09:21,680 INFO L242 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-30 01:09:21,680 INFO L244 apSepIcfgTransformer]: select infos: Set: ((select (select |v_#memory_int_1| |v_cmemchr_#t~post1.base_3|) |v_cmemchr_#t~post1.offset_3|), at (SUMMARY for call #t~mem2 := read~int(#t~post1.base, #t~post1.offset, 1); srcloc: L546'')) [2018-01-30 01:09:21,686 INFO L547 PartitionManager]: partitioning result: [2018-01-30 01:09:21,686 INFO L552 PartitionManager]: location blocks for array group [#memory_int] [2018-01-30 01:09:21,687 INFO L561 PartitionManager]: at dimension 0 [2018-01-30 01:09:21,687 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-01-30 01:09:21,687 INFO L563 PartitionManager]: # location blocks :1 [2018-01-30 01:09:21,687 INFO L561 PartitionManager]: at dimension 1 [2018-01-30 01:09:21,687 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 1 [2018-01-30 01:09:21,688 INFO L563 PartitionManager]: # location blocks :1 [2018-01-30 01:09:21,689 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-30 01:09:21,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 01:09:21 BasicIcfg [2018-01-30 01:09:21,716 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-30 01:09:21,717 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 01:09:21,717 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 01:09:21,724 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 01:09:21,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 01:09:14" (1/4) ... [2018-01-30 01:09:21,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afd61f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:09:21, skipping insertion in model container [2018-01-30 01:09:21,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 01:09:14" (2/4) ... [2018-01-30 01:09:21,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afd61f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:09:21, skipping insertion in model container [2018-01-30 01:09:21,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 01:09:15" (3/4) ... [2018-01-30 01:09:21,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afd61f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 01:09:21, skipping insertion in model container [2018-01-30 01:09:21,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 01:09:21" (4/4) ... [2018-01-30 01:09:21,730 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-30 01:09:21,743 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 01:09:21,928 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-30 01:09:21,982 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 01:09:21,982 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 01:09:21,982 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 01:09:21,982 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 01:09:21,983 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 01:09:21,983 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 01:09:21,983 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 01:09:21,983 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 01:09:21,984 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 01:09:22,002 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-01-30 01:09:22,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-30 01:09:22,012 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:09:22,013 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:09:22,014 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cmemchrErr1RequiresViolation, cmemchrErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-30 01:09:22,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1750167048, now seen corresponding path program 1 times [2018-01-30 01:09:22,023 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:09:22,024 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:09:22,138 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:22,138 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:09:22,138 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:09:22,295 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:09:22,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:09:22,705 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:09:22,706 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 01:09:22,708 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 01:09:22,719 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 01:09:22,720 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 01:09:22,723 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 4 states. [2018-01-30 01:09:23,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:09:23,231 INFO L93 Difference]: Finished difference Result 67 states and 75 transitions. [2018-01-30 01:09:23,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-30 01:09:23,233 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-01-30 01:09:23,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:09:23,259 INFO L225 Difference]: With dead ends: 67 [2018-01-30 01:09:23,259 INFO L226 Difference]: Without dead ends: 40 [2018-01-30 01:09:23,263 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:09:23,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2018-01-30 01:09:23,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2018-01-30 01:09:23,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-01-30 01:09:23,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2018-01-30 01:09:23,314 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 21 [2018-01-30 01:09:23,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:09:23,315 INFO L432 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2018-01-30 01:09:23,315 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 01:09:23,315 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2018-01-30 01:09:23,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-30 01:09:23,316 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:09:23,317 INFO L350 BasicCegarLoop]: trace histogram [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] [2018-01-30 01:09:23,317 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cmemchrErr1RequiresViolation, cmemchrErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-30 01:09:23,317 INFO L82 PathProgramCache]: Analyzing trace with hash 891944594, now seen corresponding path program 1 times [2018-01-30 01:09:23,317 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:09:23,317 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:09:23,319 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:23,319 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:09:23,319 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:09:23,353 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:09:23,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:09:23,865 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:09:23,865 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-30 01:09:23,867 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-30 01:09:23,867 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-30 01:09:23,868 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2018-01-30 01:09:23,877 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand 8 states. [2018-01-30 01:09:24,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:09:24,501 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2018-01-30 01:09:24,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-30 01:09:24,506 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 25 [2018-01-30 01:09:24,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:09:24,507 INFO L225 Difference]: With dead ends: 40 [2018-01-30 01:09:24,508 INFO L226 Difference]: Without dead ends: 39 [2018-01-30 01:09:24,509 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2018-01-30 01:09:24,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-01-30 01:09:24,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2018-01-30 01:09:24,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2018-01-30 01:09:24,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2018-01-30 01:09:24,515 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 25 [2018-01-30 01:09:24,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:09:24,515 INFO L432 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2018-01-30 01:09:24,515 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-30 01:09:24,516 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2018-01-30 01:09:24,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-30 01:09:24,516 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:09:24,517 INFO L350 BasicCegarLoop]: trace histogram [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] [2018-01-30 01:09:24,517 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cmemchrErr1RequiresViolation, cmemchrErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-30 01:09:24,517 INFO L82 PathProgramCache]: Analyzing trace with hash 891944596, now seen corresponding path program 1 times [2018-01-30 01:09:24,517 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:09:24,517 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:09:24,518 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:24,519 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:09:24,519 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:09:24,538 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:09:24,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:09:24,845 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:09:24,845 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-01-30 01:09:24,845 INFO L409 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-01-30 01:09:24,846 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-01-30 01:09:24,846 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-01-30 01:09:24,846 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 9 states. [2018-01-30 01:09:25,346 WARN L143 SmtUtils]: Spent 149ms on a formula simplification that was a NOOP. DAG size: 24 [2018-01-30 01:09:25,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:09:25,557 INFO L93 Difference]: Finished difference Result 46 states and 49 transitions. [2018-01-30 01:09:25,557 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-30 01:09:25,557 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2018-01-30 01:09:25,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:09:25,559 INFO L225 Difference]: With dead ends: 46 [2018-01-30 01:09:25,559 INFO L226 Difference]: Without dead ends: 45 [2018-01-30 01:09:25,559 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-01-30 01:09:25,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-01-30 01:09:25,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 43. [2018-01-30 01:09:25,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-01-30 01:09:25,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2018-01-30 01:09:25,571 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 25 [2018-01-30 01:09:25,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:09:25,571 INFO L432 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2018-01-30 01:09:25,571 INFO L433 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-01-30 01:09:25,572 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2018-01-30 01:09:25,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-01-30 01:09:25,574 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:09:25,574 INFO L350 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:09:25,575 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cmemchrErr1RequiresViolation, cmemchrErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-30 01:09:25,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1007907127, now seen corresponding path program 1 times [2018-01-30 01:09:25,575 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:09:25,575 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:09:25,578 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:25,578 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:09:25,578 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:25,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:09:25,612 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:09:25,878 WARN L143 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 11 [2018-01-30 01:09:26,639 WARN L146 SmtUtils]: Spent 257ms on a formula simplification. DAG size of input: 21 DAG size of output 18 [2018-01-30 01:09:26,736 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:09:26,736 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:09:26,736 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:09:26,759 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:09:26,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:09:26,808 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:09:26,865 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-30 01:09:26,866 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:09:26,879 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:09:26,879 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-01-30 01:09:27,732 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:09:27,761 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:09:27,761 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13] total 26 [2018-01-30 01:09:27,762 INFO L409 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-01-30 01:09:27,762 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-01-30 01:09:27,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=641, Unknown=0, NotChecked=0, Total=702 [2018-01-30 01:09:27,763 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand 27 states. [2018-01-30 01:09:28,231 WARN L146 SmtUtils]: Spent 110ms on a formula simplification. DAG size of input: 36 DAG size of output 28 [2018-01-30 01:09:28,811 WARN L146 SmtUtils]: Spent 102ms on a formula simplification. DAG size of input: 30 DAG size of output 27 [2018-01-30 01:09:28,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:09:28,912 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2018-01-30 01:09:28,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-01-30 01:09:28,913 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 36 [2018-01-30 01:09:28,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:09:28,914 INFO L225 Difference]: With dead ends: 57 [2018-01-30 01:09:28,914 INFO L226 Difference]: Without dead ends: 56 [2018-01-30 01:09:28,916 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 232 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=224, Invalid=1416, Unknown=0, NotChecked=0, Total=1640 [2018-01-30 01:09:28,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-01-30 01:09:28,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 54. [2018-01-30 01:09:28,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2018-01-30 01:09:28,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 57 transitions. [2018-01-30 01:09:28,926 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 57 transitions. Word has length 36 [2018-01-30 01:09:28,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:09:28,926 INFO L432 AbstractCegarLoop]: Abstraction has 54 states and 57 transitions. [2018-01-30 01:09:28,926 INFO L433 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-01-30 01:09:28,926 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 57 transitions. [2018-01-30 01:09:28,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-01-30 01:09:28,928 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:09:28,928 INFO L350 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2018-01-30 01:09:28,928 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cmemchrErr1RequiresViolation, cmemchrErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-01-30 01:09:28,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1287076724, now seen corresponding path program 2 times [2018-01-30 01:09:28,929 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:09:28,929 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:09:28,930 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:28,930 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:09:28,930 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:09:28,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:09:28,979 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:09:29,970 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:09:29,971 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:09:29,971 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-30 01:09:29,978 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-30 01:09:29,994 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:09:30,004 INFO L214 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-30 01:09:30,008 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-30 01:09:30,013 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:09:30,017 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2018-01-30 01:09:30,018 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-30 01:09:30,021 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-01-30 01:09:30,021 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:10, output treesize:9 [2018-01-30 01:09:30,633 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:09:30,656 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-30 01:09:30,657 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 26 [2018-01-30 01:09:30,657 INFO L409 AbstractCegarLoop]: Interpolant automaton has 27 states [2018-01-30 01:09:30,657 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2018-01-30 01:09:30,657 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2018-01-30 01:09:30,657 INFO L87 Difference]: Start difference. First operand 54 states and 57 transitions. Second operand 27 states. [2018-01-30 01:09:31,975 WARN L146 SmtUtils]: Spent 123ms on a formula simplification. DAG size of input: 42 DAG size of output 36 [2018-01-30 01:09:32,207 WARN L146 SmtUtils]: Spent 141ms on a formula simplification. DAG size of input: 42 DAG size of output 36 [2018-01-30 01:09:32,967 WARN L146 SmtUtils]: Spent 108ms on a formula simplification. DAG size of input: 42 DAG size of output 37 [2018-01-30 01:09:33,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:09:33,310 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2018-01-30 01:09:33,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-01-30 01:09:33,313 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 47 [2018-01-30 01:09:33,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:09:33,314 INFO L225 Difference]: With dead ends: 67 [2018-01-30 01:09:33,314 INFO L226 Difference]: Without dead ends: 0 [2018-01-30 01:09:33,316 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 495 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=314, Invalid=2338, Unknown=0, NotChecked=0, Total=2652 [2018-01-30 01:09:33,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-30 01:09:33,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-30 01:09:33,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-30 01:09:33,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-30 01:09:33,318 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2018-01-30 01:09:33,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:09:33,318 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-30 01:09:33,318 INFO L433 AbstractCegarLoop]: Interpolant automaton has 27 states. [2018-01-30 01:09:33,319 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-30 01:09:33,319 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-30 01:09:33,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-30 01:09:33,460 WARN L143 SmtUtils]: Spent 107ms on a formula simplification that was a NOOP. DAG size: 76 [2018-01-30 01:09:34,132 WARN L146 SmtUtils]: Spent 549ms on a formula simplification. DAG size of input: 84 DAG size of output 56 [2018-01-30 01:09:34,185 INFO L399 ceAbstractionStarter]: For program point L546''''''(line 546) no Hoare annotation was computed. [2018-01-30 01:09:34,185 INFO L399 ceAbstractionStarter]: For program point L540(lines 540 551) no Hoare annotation was computed. [2018-01-30 01:09:34,185 INFO L399 ceAbstractionStarter]: For program point cmemchrEXIT(lines 540 551) no Hoare annotation was computed. [2018-01-30 01:09:34,185 INFO L399 ceAbstractionStarter]: For program point L546(line 546) no Hoare annotation was computed. [2018-01-30 01:09:34,185 INFO L399 ceAbstractionStarter]: For program point L545(lines 545 548) no Hoare annotation was computed. [2018-01-30 01:09:34,185 INFO L399 ceAbstractionStarter]: For program point L544(line 544) no Hoare annotation was computed. [2018-01-30 01:09:34,186 INFO L399 ceAbstractionStarter]: For program point cmemchrFINAL(lines 540 551) no Hoare annotation was computed. [2018-01-30 01:09:34,186 INFO L399 ceAbstractionStarter]: For program point L543(lines 543 549) no Hoare annotation was computed. [2018-01-30 01:09:34,186 INFO L399 ceAbstractionStarter]: For program point L546'''''(line 546) no Hoare annotation was computed. [2018-01-30 01:09:34,186 INFO L399 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-01-30 01:09:34,186 INFO L399 ceAbstractionStarter]: For program point L547(line 547) no Hoare annotation was computed. [2018-01-30 01:09:34,187 INFO L402 ceAbstractionStarter]: At program point cmemchrENTRY(lines 540 551) the Hoare annotation is: true [2018-01-30 01:09:34,187 INFO L399 ceAbstractionStarter]: For program point L546'(line 546) no Hoare annotation was computed. [2018-01-30 01:09:34,187 INFO L399 ceAbstractionStarter]: For program point L548'(line 548) no Hoare annotation was computed. [2018-01-30 01:09:34,187 INFO L399 ceAbstractionStarter]: For program point cmemchrErr1RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-30 01:09:34,187 INFO L399 ceAbstractionStarter]: For program point L546''''(line 546) no Hoare annotation was computed. [2018-01-30 01:09:34,187 INFO L395 ceAbstractionStarter]: At program point L545'''(lines 545 548) the Hoare annotation is: (let ((.cse8 (select |#length| cmemchr_~s.base))) (let ((.cse3 (select |#length| cmemchr_~p~3.base)) (.cse0 (= 1 (select |#valid| cmemchr_~p~3.base))) (.cse1 (= 0 cmemchr_~s.offset)) (.cse4 (= .cse8 |cmemchr_#in~n|)) (.cse5 (= 1 (select |#valid| cmemchr_~s.base))) (.cse7 (select |#length| |cmemchr_#in~s.base|))) (or (let ((.cse2 (+ cmemchr_~p~3.offset cmemchr_~n))) (and (<= 2 cmemchr_~p~3.offset) .cse0 .cse1 (<= .cse2 .cse3) (<= .cse3 .cse2) .cse4 .cse5 (<= 1 cmemchr_~n))) (let ((.cse6 (+ cmemchr_~n 1))) (and (<= .cse6 .cse3) (= cmemchr_~p~3.offset 1) .cse0 .cse1 (not (= (mod (+ .cse3 4294967295) 4294967296) 0)) .cse4 .cse5 (<= 1 .cse3) (<= .cse3 .cse6))) (< |cmemchr_#in~n| .cse7) (and (= cmemchr_~n .cse3) .cse0 .cse1 (= cmemchr_~n .cse8) .cse4 .cse5 (= cmemchr_~p~3.offset 0)) (not (= 0 |cmemchr_#in~s.offset|)) (< .cse7 |cmemchr_#in~n|) (not (= (select |#valid| |cmemchr_#in~s.base|) 1)) (< .cse7 1)))) [2018-01-30 01:09:34,188 INFO L399 ceAbstractionStarter]: For program point L540'(lines 540 551) no Hoare annotation was computed. [2018-01-30 01:09:34,188 INFO L399 ceAbstractionStarter]: For program point L546'''''''(line 546) no Hoare annotation was computed. [2018-01-30 01:09:34,188 INFO L399 ceAbstractionStarter]: For program point cmemchrErr0RequiresViolation(lines 1 565) no Hoare annotation was computed. [2018-01-30 01:09:34,188 INFO L399 ceAbstractionStarter]: For program point L543'(lines 543 549) no Hoare annotation was computed. [2018-01-30 01:09:34,188 INFO L399 ceAbstractionStarter]: For program point L546''(line 546) no Hoare annotation was computed. [2018-01-30 01:09:34,188 INFO L399 ceAbstractionStarter]: For program point L545'(lines 545 548) no Hoare annotation was computed. [2018-01-30 01:09:34,188 INFO L399 ceAbstractionStarter]: For program point L546'''(line 546) no Hoare annotation was computed. [2018-01-30 01:09:34,189 INFO L399 ceAbstractionStarter]: For program point L548''(line 548) no Hoare annotation was computed. [2018-01-30 01:09:34,189 INFO L399 ceAbstractionStarter]: For program point L1(lines 1 565) no Hoare annotation was computed. [2018-01-30 01:09:34,189 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 565) no Hoare annotation was computed. [2018-01-30 01:09:34,189 INFO L395 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 565) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-30 01:09:34,189 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 565) no Hoare annotation was computed. [2018-01-30 01:09:34,189 INFO L402 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 565) the Hoare annotation is: true [2018-01-30 01:09:34,189 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 565) no Hoare annotation was computed. [2018-01-30 01:09:34,190 INFO L402 ceAbstractionStarter]: At program point L1(lines 1 565) the Hoare annotation is: true [2018-01-30 01:09:34,190 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 565) no Hoare annotation was computed. [2018-01-30 01:09:34,190 INFO L399 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-01-30 01:09:34,190 INFO L399 ceAbstractionStarter]: For program point L553(line 553) no Hoare annotation was computed. [2018-01-30 01:09:34,190 INFO L399 ceAbstractionStarter]: For program point L564(line 564) no Hoare annotation was computed. [2018-01-30 01:09:34,190 INFO L395 ceAbstractionStarter]: At program point L563(line 563) the Hoare annotation is: (and (= main_~n~5 (select |#length| main_~nondetArea~5.base)) (= 0 |main_#t~malloc6.offset|) (<= 1 main_~n~5) (= main_~n~5 (select |#length| |main_#t~malloc6.base|)) (= 0 main_~nondetArea~5.offset) (= (store |#valid| |main_#t~malloc6.base| (select (store |#valid| |main_#t~malloc6.base| 0) |main_#t~malloc6.base|)) |old(#valid)|) (= 1 (select |#valid| |main_#t~malloc6.base|)) (= 1 (select |#valid| main_~nondetArea~5.base))) [2018-01-30 01:09:34,190 INFO L399 ceAbstractionStarter]: For program point L562'(line 562) no Hoare annotation was computed. [2018-01-30 01:09:34,191 INFO L399 ceAbstractionStarter]: For program point L562(line 562) no Hoare annotation was computed. [2018-01-30 01:09:34,191 INFO L399 ceAbstractionStarter]: For program point L563'(line 563) no Hoare annotation was computed. [2018-01-30 01:09:34,191 INFO L399 ceAbstractionStarter]: For program point L553'(line 553) no Hoare annotation was computed. [2018-01-30 01:09:34,191 INFO L399 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-01-30 01:09:34,191 INFO L399 ceAbstractionStarter]: For program point mainFINAL(lines 552 565) no Hoare annotation was computed. [2018-01-30 01:09:34,191 INFO L399 ceAbstractionStarter]: For program point L556(lines 556 558) no Hoare annotation was computed. [2018-01-30 01:09:34,191 INFO L399 ceAbstractionStarter]: For program point L555(line 555) no Hoare annotation was computed. [2018-01-30 01:09:34,192 INFO L399 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-01-30 01:09:34,192 INFO L399 ceAbstractionStarter]: For program point mainEXIT(lines 552 565) no Hoare annotation was computed. [2018-01-30 01:09:34,192 INFO L395 ceAbstractionStarter]: At program point mainENTRY(lines 552 565) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-30 01:09:34,192 INFO L399 ceAbstractionStarter]: For program point L562''(line 562) no Hoare annotation was computed. [2018-01-30 01:09:34,192 INFO L399 ceAbstractionStarter]: For program point L554'(line 554) no Hoare annotation was computed. [2018-01-30 01:09:34,192 INFO L399 ceAbstractionStarter]: For program point L555'(line 555) no Hoare annotation was computed. [2018-01-30 01:09:34,192 INFO L399 ceAbstractionStarter]: For program point L554''(line 554) no Hoare annotation was computed. [2018-01-30 01:09:34,192 INFO L399 ceAbstractionStarter]: For program point L555''(line 555) no Hoare annotation was computed. [2018-01-30 01:09:34,193 INFO L399 ceAbstractionStarter]: For program point L559'(lines 559 561) no Hoare annotation was computed. [2018-01-30 01:09:34,193 INFO L399 ceAbstractionStarter]: For program point L556''(lines 556 558) no Hoare annotation was computed. [2018-01-30 01:09:34,193 INFO L399 ceAbstractionStarter]: For program point mainErr0EnsuresViolation(lines 552 565) no Hoare annotation was computed. [2018-01-30 01:09:34,201 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,211 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,212 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,212 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,213 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,213 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,213 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,214 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,214 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,214 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,214 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,215 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,215 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,215 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,237 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,237 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,237 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,238 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,238 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,238 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,239 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,239 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,239 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,240 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,240 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,240 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,240 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,241 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 01:09:34 BasicIcfg [2018-01-30 01:09:34,266 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-30 01:09:34,267 INFO L168 Benchmark]: Toolchain (without parser) took 20012.34 ms. Allocated memory was 305.1 MB in the beginning and 771.2 MB in the end (delta: 466.1 MB). Free memory was 265.0 MB in the beginning and 746.9 MB in the end (delta: -481.9 MB). Peak memory consumption was 482.4 MB. Max. memory is 5.3 GB. [2018-01-30 01:09:34,269 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 305.1 MB. Free memory is still 271.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 01:09:34,269 INFO L168 Benchmark]: CACSL2BoogieTranslator took 351.38 ms. Allocated memory is still 305.1 MB. Free memory was 264.0 MB in the beginning and 253.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. [2018-01-30 01:09:34,270 INFO L168 Benchmark]: Boogie Preprocessor took 57.11 ms. Allocated memory is still 305.1 MB. Free memory was 253.9 MB in the beginning and 251.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-30 01:09:34,270 INFO L168 Benchmark]: RCFGBuilder took 625.56 ms. Allocated memory is still 305.1 MB. Free memory was 251.9 MB in the beginning and 234.9 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. [2018-01-30 01:09:34,270 INFO L168 Benchmark]: IcfgTransformer took 6416.57 ms. Allocated memory was 305.1 MB in the beginning and 588.3 MB in the end (delta: 283.1 MB). Free memory was 234.9 MB in the beginning and 458.1 MB in the end (delta: -223.2 MB). Peak memory consumption was 59.9 MB. Max. memory is 5.3 GB. [2018-01-30 01:09:34,271 INFO L168 Benchmark]: TraceAbstraction took 12549.41 ms. Allocated memory was 588.3 MB in the beginning and 771.2 MB in the end (delta: 183.0 MB). Free memory was 458.1 MB in the beginning and 746.9 MB in the end (delta: -288.8 MB). Peak memory consumption was 392.4 MB. Max. memory is 5.3 GB. [2018-01-30 01:09:34,274 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 305.1 MB. Free memory is still 271.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 351.38 ms. Allocated memory is still 305.1 MB. Free memory was 264.0 MB in the beginning and 253.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 57.11 ms. Allocated memory is still 305.1 MB. Free memory was 253.9 MB in the beginning and 251.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 625.56 ms. Allocated memory is still 305.1 MB. Free memory was 251.9 MB in the beginning and 234.9 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 5.3 GB. * IcfgTransformer took 6416.57 ms. Allocated memory was 305.1 MB in the beginning and 588.3 MB in the end (delta: 283.1 MB). Free memory was 234.9 MB in the beginning and 458.1 MB in the end (delta: -223.2 MB). Peak memory consumption was 59.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 12549.41 ms. Allocated memory was 588.3 MB in the beginning and 771.2 MB in the end (delta: 183.0 MB). Free memory was 458.1 MB in the beginning and 746.9 MB in the end (delta: -288.8 MB). Peak memory consumption was 392.4 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 54 LocStat_MAX_WEQGRAPH_SIZE : 2 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 587 LocStat_NO_SUPPORTING_DISEQUALITIES : 145 LocStat_NO_DISJUNCTIONS : -108 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 73 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 85 TransStat_NO_SUPPORTING_DISEQUALITIES : 7 TransStat_NO_DISJUNCTIONS : 73 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 1.028155 RENAME_VARIABLES(MILLISECONDS) : 0.026704 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 0.466785 PROJECTAWAY(MILLISECONDS) : 0.701273 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.094851 DISJOIN(MILLISECONDS) : 0.193310 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.046632 ADD_EQUALITY(MILLISECONDS) : 0.046979 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.022048 #CONJOIN_DISJUNCTIVE : 394 #RENAME_VARIABLES : 910 #UNFREEZE : 0 #CONJOIN : 642 #PROJECTAWAY : 632 #ADD_WEAK_EQUALITY : 4 #DISJOIN : 110 #RENAME_VARIABLES_DISJUNCTIVE : 910 #ADD_EQUALITY : 85 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 6 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int] : 1 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0 : 1 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 1 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_1 : 1 COUNT_BLOCKS_for_[#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int] : 1 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 552]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 545]: Loop Invariant [2018-01-30 01:09:34,288 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,288 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,288 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,288 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,289 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,289 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,289 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,289 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,290 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,290 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,290 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,290 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,290 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,291 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,293 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,293 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,294 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,295 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,295 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,295 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,296 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,296 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,296 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,296 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,296 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,297 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,297 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length [2018-01-30 01:09:34,297 WARN L1215 BoogieBacktranslator]: unknown boogie variable #length Derived loop invariant: (((((((((((((2 <= p && 1 == \valid[p]) && 0 == s) && p + n <= unknown-#length-unknown[p]) && unknown-#length-unknown[p] <= p + n) && unknown-#length-unknown[s] == \old(n)) && 1 == \valid[s]) && 1 <= n) || ((((((((n + 1 <= unknown-#length-unknown[p] && p == 1) && 1 == \valid[p]) && 0 == s) && !((unknown-#length-unknown[p] + 4294967295) % 4294967296 == 0)) && unknown-#length-unknown[s] == \old(n)) && 1 == \valid[s]) && 1 <= unknown-#length-unknown[p]) && unknown-#length-unknown[p] <= n + 1)) || \old(n) < unknown-#length-unknown[s]) || ((((((n == unknown-#length-unknown[p] && 1 == \valid[p]) && 0 == s) && n == unknown-#length-unknown[s]) && unknown-#length-unknown[s] == \old(n)) && 1 == \valid[s]) && p == 0)) || !(0 == s)) || unknown-#length-unknown[s] < \old(n)) || !(\valid[s] == 1)) || unknown-#length-unknown[s] < 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 56 locations, 3 error locations. SAFE Result, 12.2s OverallTime, 5 OverallIterations, 3 TraceHistogramMax, 5.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.8s HoareAnnotationTime, HoareTripleCheckerStatistics: 194 SDtfs, 398 SDslu, 1535 SDs, 0 SdLazy, 819 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 180 GetRequests, 62 SyntacticMatches, 4 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 7.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred in iteration=0, 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, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 10 NumberOfFragments, 201 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 390 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 237 NumberOfCodeBlocks, 237 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 230 ConstructedInterpolants, 5 QuantifiedInterpolants, 83941 SizeOfPredicates, 34 NumberOfNonLiveVariables, 210 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 0/46 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-30_01-09-34-303.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-30_01-09-34-303.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-30_01-09-34-303.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-30_01-09-34-303.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/openbsd_cmemchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-30_01-09-34-303.csv Received shutdown request...