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/cstrcpy-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-30 00:59:38,558 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 00:59:38,559 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 00:59:38,573 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 00:59:38,573 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 00:59:38,574 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 00:59:38,575 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 00:59:38,577 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 00:59:38,579 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 00:59:38,579 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 00:59:38,580 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 00:59:38,580 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 00:59:38,581 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 00:59:38,581 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 00:59:38,582 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 00:59:38,584 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 00:59:38,586 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 00:59:38,588 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 00:59:38,590 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 00:59:38,591 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 00:59:38,593 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-30 00:59:38,593 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-30 00:59:38,594 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-30 00:59:38,595 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-30 00:59:38,595 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-30 00:59:38,597 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-30 00:59:38,597 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-30 00:59:38,598 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-30 00:59:38,598 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-30 00:59:38,598 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 00:59:38,598 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 00:59:38,599 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 00:59:38,608 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 00:59:38,609 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 00:59:38,610 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 00:59:38,610 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 00:59:38,610 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 00:59:38,610 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 00:59:38,610 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 00:59:38,611 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 00:59:38,611 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 00:59:38,611 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 00:59:38,612 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 00:59:38,612 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 00:59:38,612 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 00:59:38,612 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 00:59:38,612 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 00:59:38,613 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 00:59:38,613 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 00:59:38,613 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 00:59:38,613 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 00:59:38,613 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 00:59:38,614 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 00:59:38,614 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 00:59:38,614 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 00:59:38,614 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 00:59:38,614 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 00:59:38,615 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 00:59:38,615 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 00:59:38,615 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 00:59:38,615 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 00:59:38,615 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 00:59:38,616 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 00:59:38,616 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 00:59:38,617 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 00:59:38,617 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 00:59:38,652 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 00:59:38,664 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 00:59:38,668 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 00:59:38,669 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 00:59:38,670 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 00:59:38,671 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrcpy-alloca_true-valid-memsafety_true-termination.i [2018-01-30 00:59:38,834 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 00:59:38,840 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-30 00:59:38,841 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 00:59:38,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 00:59:38,846 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 00:59:38,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:59:38" (1/1) ... [2018-01-30 00:59:38,849 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42c28714 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:59:38, skipping insertion in model container [2018-01-30 00:59:38,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:59:38" (1/1) ... [2018-01-30 00:59:38,867 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:59:38,906 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:59:39,015 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:59:39,030 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:59:39,036 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:59:39 WrapperNode [2018-01-30 00:59:39,036 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 00:59:39,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 00:59:39,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 00:59:39,037 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 00:59:39,048 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:59:39" (1/1) ... [2018-01-30 00:59:39,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:59:39" (1/1) ... [2018-01-30 00:59:39,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:59:39" (1/1) ... [2018-01-30 00:59:39,058 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:59:39" (1/1) ... [2018-01-30 00:59:39,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:59:39" (1/1) ... [2018-01-30 00:59:39,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:59:39" (1/1) ... [2018-01-30 00:59:39,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:59:39" (1/1) ... [2018-01-30 00:59:39,067 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 00:59:39,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 00:59:39,068 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 00:59:39,068 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 00:59:39,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:59:39" (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 00:59:39,114 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 00:59:39,115 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 00:59:39,115 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrcpy [2018-01-30 00:59:39,115 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 00:59:39,115 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-30 00:59:39,115 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-30 00:59:39,115 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 00:59:39,115 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 00:59:39,115 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 00:59:39,115 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 00:59:39,115 INFO L128 BoogieDeclarations]: Found specification of procedure cstrcpy [2018-01-30 00:59:39,116 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 00:59:39,116 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 00:59:39,116 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 00:59:39,299 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 00:59:39,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:59:39 BoogieIcfgContainer [2018-01-30 00:59:39,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 00:59:39,300 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-30 00:59:39,300 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-30 00:59:39,300 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-30 00:59:39,303 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:59:39" (1/1) ... [2018-01-30 00:59:39,310 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-30 00:59:39,310 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-30 00:59:39,310 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-30 00:59:39,356 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 9 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-30 00:59:39,385 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-30 00:59:39,442 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-30 01:00:19,588 INFO L311 AbstractInterpreter]: Visited 69 different actions 358 times. Merged at 40 different actions 188 times. Never widened. Found 11 fixpoints after 3 different actions. Largest state had 56 variables. [2018-01-30 01:00:19,589 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-30 01:00:19,600 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 3 [2018-01-30 01:00:19,600 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-30 01:00:19,600 INFO L242 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-30 01:00:19,600 INFO L244 apSepIcfgTransformer]: select infos: Set: ((select |v_#memory_int_3| |v_cstrcpy_#t~post0.base_3|), at (SUMMARY for call write~int(#t~mem3, #t~post0.base, #t~post0.offset, 1); srcloc: L544''''')) ((select |v_#memory_int_7| v_main_~nondetString~3.base_2), at (SUMMARY for call write~int(0, ~nondetString~3.base, ~nondetString~3.offset + (~length2~3 - 1) * 1, 1); srcloc: L560)) ((select (select |v_#memory_int_1| |v_cstrcpy_#t~post1.base_3|) |v_cstrcpy_#t~post1.offset_3|), at (SUMMARY for call #t~mem3 := read~int(#t~post1.base, #t~post1.offset, 1); srcloc: L544'''')) [2018-01-30 01:00:19,643 INFO L547 PartitionManager]: partitioning result: [2018-01-30 01:00:19,644 INFO L552 PartitionManager]: location blocks for array group [#memory_int] [2018-01-30 01:00:19,644 INFO L561 PartitionManager]: at dimension 0 [2018-01-30 01:00:19,644 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 3 [2018-01-30 01:00:19,644 INFO L563 PartitionManager]: # location blocks :3 [2018-01-30 01:00:19,644 INFO L561 PartitionManager]: at dimension 1 [2018-01-30 01:00:19,644 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-01-30 01:00:19,644 INFO L563 PartitionManager]: # location blocks :1 [2018-01-30 01:00:19,645 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-30 01:00:19,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 01:00:19 BasicIcfg [2018-01-30 01:00:19,659 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-30 01:00:19,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 01:00:19,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 01:00:19,664 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 01:00:19,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 12:59:38" (1/4) ... [2018-01-30 01:00:19,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ba71c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:00:19, skipping insertion in model container [2018-01-30 01:00:19,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:59:39" (2/4) ... [2018-01-30 01:00:19,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ba71c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 01:00:19, skipping insertion in model container [2018-01-30 01:00:19,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:59:39" (3/4) ... [2018-01-30 01:00:19,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29ba71c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 01:00:19, skipping insertion in model container [2018-01-30 01:00:19,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 01:00:19" (4/4) ... [2018-01-30 01:00:19,667 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-30 01:00:19,674 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 01:00:19,729 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2018-01-30 01:00:19,759 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 01:00:19,760 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 01:00:19,760 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 01:00:19,760 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 01:00:19,760 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 01:00:19,760 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 01:00:19,760 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 01:00:19,760 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 01:00:19,761 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 01:00:19,771 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states. [2018-01-30 01:00:19,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-01-30 01:00:19,776 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:00:19,777 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:00:19,777 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:00:19,780 INFO L82 PathProgramCache]: Analyzing trace with hash -975213106, now seen corresponding path program 1 times [2018-01-30 01:00:19,782 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:00:19,782 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:00:19,821 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:19,821 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:00:19,822 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:19,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:00:19,866 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:00:19,929 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 01:00:19,932 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:00:19,932 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-01-30 01:00:19,934 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-30 01:00:19,942 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-30 01:00:19,943 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-30 01:00:19,944 INFO L87 Difference]: Start difference. First operand 62 states. Second operand 3 states. [2018-01-30 01:00:20,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:00:20,035 INFO L93 Difference]: Finished difference Result 77 states and 84 transitions. [2018-01-30 01:00:20,036 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-30 01:00:20,037 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-01-30 01:00:20,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:00:20,047 INFO L225 Difference]: With dead ends: 77 [2018-01-30 01:00:20,047 INFO L226 Difference]: Without dead ends: 58 [2018-01-30 01:00:20,051 INFO L553 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 [2018-01-30 01:00:20,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-01-30 01:00:20,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-01-30 01:00:20,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-01-30 01:00:20,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 62 transitions. [2018-01-30 01:00:20,085 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 62 transitions. Word has length 13 [2018-01-30 01:00:20,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:00:20,085 INFO L432 AbstractCegarLoop]: Abstraction has 58 states and 62 transitions. [2018-01-30 01:00:20,085 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-30 01:00:20,086 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 62 transitions. [2018-01-30 01:00:20,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-30 01:00:20,086 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:00:20,087 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:00:20,087 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:00:20,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1355357025, now seen corresponding path program 1 times [2018-01-30 01:00:20,087 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:00:20,087 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:00:20,088 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:20,088 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:00:20,088 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:00:20,103 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:00:20,163 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 01:00:20,164 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:00:20,164 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 01:00:20,166 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 01:00:20,166 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 01:00:20,166 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 01:00:20,166 INFO L87 Difference]: Start difference. First operand 58 states and 62 transitions. Second operand 4 states. [2018-01-30 01:00:20,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:00:20,212 INFO L93 Difference]: Finished difference Result 58 states and 62 transitions. [2018-01-30 01:00:20,213 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-30 01:00:20,213 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-01-30 01:00:20,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:00:20,214 INFO L225 Difference]: With dead ends: 58 [2018-01-30 01:00:20,214 INFO L226 Difference]: Without dead ends: 57 [2018-01-30 01:00:20,215 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:00:20,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-01-30 01:00:20,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-01-30 01:00:20,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-01-30 01:00:20,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 61 transitions. [2018-01-30 01:00:20,224 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 61 transitions. Word has length 16 [2018-01-30 01:00:20,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:00:20,224 INFO L432 AbstractCegarLoop]: Abstraction has 57 states and 61 transitions. [2018-01-30 01:00:20,225 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 01:00:20,225 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 61 transitions. [2018-01-30 01:00:20,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-01-30 01:00:20,226 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:00:20,226 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 01:00:20,226 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:00:20,226 INFO L82 PathProgramCache]: Analyzing trace with hash -1355357023, now seen corresponding path program 1 times [2018-01-30 01:00:20,226 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:00:20,227 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:00:20,228 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:20,228 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:00:20,228 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:20,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:00:20,244 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:00:20,349 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 01:00:20,350 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:00:20,350 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 01:00:20,350 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 01:00:20,350 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 01:00:20,351 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 01:00:20,351 INFO L87 Difference]: Start difference. First operand 57 states and 61 transitions. Second operand 5 states. [2018-01-30 01:00:20,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:00:20,393 INFO L93 Difference]: Finished difference Result 57 states and 61 transitions. [2018-01-30 01:00:20,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 01:00:20,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2018-01-30 01:00:20,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:00:20,395 INFO L225 Difference]: With dead ends: 57 [2018-01-30 01:00:20,395 INFO L226 Difference]: Without dead ends: 56 [2018-01-30 01:00:20,395 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2018-01-30 01:00:20,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-01-30 01:00:20,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-01-30 01:00:20,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-01-30 01:00:20,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2018-01-30 01:00:20,400 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 16 [2018-01-30 01:00:20,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:00:20,400 INFO L432 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2018-01-30 01:00:20,400 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 01:00:20,400 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2018-01-30 01:00:20,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-01-30 01:00:20,401 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:00:20,401 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] [2018-01-30 01:00:20,401 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:00:20,401 INFO L82 PathProgramCache]: Analyzing trace with hash 182653505, now seen corresponding path program 1 times [2018-01-30 01:00:20,401 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:00:20,401 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:00:20,402 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:20,402 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:00:20,402 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:20,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:00:20,415 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:00:20,557 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 01:00:20,557 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:00:20,558 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-01-30 01:00:20,558 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-01-30 01:00:20,558 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-01-30 01:00:20,558 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-01-30 01:00:20,559 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand 6 states. [2018-01-30 01:00:20,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:00:20,734 INFO L93 Difference]: Finished difference Result 56 states and 60 transitions. [2018-01-30 01:00:20,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-30 01:00:20,735 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-01-30 01:00:20,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:00:20,736 INFO L225 Difference]: With dead ends: 56 [2018-01-30 01:00:20,736 INFO L226 Difference]: Without dead ends: 42 [2018-01-30 01:00:20,736 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-01-30 01:00:20,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-01-30 01:00:20,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-01-30 01:00:20,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-01-30 01:00:20,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2018-01-30 01:00:20,740 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 24 [2018-01-30 01:00:20,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:00:20,740 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-01-30 01:00:20,740 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-01-30 01:00:20,740 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2018-01-30 01:00:20,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-30 01:00:20,741 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:00:20,741 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, 1, 1] [2018-01-30 01:00:20,741 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:00:20,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1721610258, now seen corresponding path program 1 times [2018-01-30 01:00:20,741 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:00:20,741 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:00:20,742 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:20,743 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:00:20,743 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:20,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:00:20,760 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:00:20,889 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 01:00:20,889 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:00:20,890 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-30 01:00:20,890 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-30 01:00:20,890 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-30 01:00:20,890 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2018-01-30 01:00:20,891 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 10 states. [2018-01-30 01:00:21,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:00:21,059 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2018-01-30 01:00:21,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-30 01:00:21,059 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 27 [2018-01-30 01:00:21,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:00:21,060 INFO L225 Difference]: With dead ends: 56 [2018-01-30 01:00:21,060 INFO L226 Difference]: Without dead ends: 55 [2018-01-30 01:00:21,061 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-01-30 01:00:21,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-01-30 01:00:21,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 48. [2018-01-30 01:00:21,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-01-30 01:00:21,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2018-01-30 01:00:21,067 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 27 [2018-01-30 01:00:21,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:00:21,067 INFO L432 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2018-01-30 01:00:21,067 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-30 01:00:21,067 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2018-01-30 01:00:21,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-01-30 01:00:21,068 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:00:21,068 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, 1, 1] [2018-01-30 01:00:21,068 INFO L371 AbstractCegarLoop]: === Iteration 6 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:00:21,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1721610256, now seen corresponding path program 1 times [2018-01-30 01:00:21,068 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:00:21,068 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:00:21,069 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:21,069 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:00:21,069 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:21,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:00:21,080 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:00:21,149 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 01:00:21,149 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:00:21,149 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-01-30 01:00:21,150 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-01-30 01:00:21,150 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-01-30 01:00:21,150 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-01-30 01:00:21,150 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 7 states. [2018-01-30 01:00:21,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:00:21,218 INFO L93 Difference]: Finished difference Result 48 states and 52 transitions. [2018-01-30 01:00:21,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-01-30 01:00:21,218 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2018-01-30 01:00:21,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:00:21,219 INFO L225 Difference]: With dead ends: 48 [2018-01-30 01:00:21,219 INFO L226 Difference]: Without dead ends: 47 [2018-01-30 01:00:21,219 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-01-30 01:00:21,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-01-30 01:00:21,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-01-30 01:00:21,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-01-30 01:00:21,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2018-01-30 01:00:21,224 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 27 [2018-01-30 01:00:21,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:00:21,224 INFO L432 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2018-01-30 01:00:21,225 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-01-30 01:00:21,225 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2018-01-30 01:00:21,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-01-30 01:00:21,226 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:00:21,226 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, 1, 1, 1] [2018-01-30 01:00:21,226 INFO L371 AbstractCegarLoop]: === Iteration 7 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:00:21,226 INFO L82 PathProgramCache]: Analyzing trace with hash 1830310711, now seen corresponding path program 1 times [2018-01-30 01:00:21,226 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:00:21,226 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:00:21,227 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:21,227 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:00:21,227 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:00:21,241 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:00:21,424 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 01:00:21,424 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:00:21,424 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-01-30 01:00:21,425 INFO L409 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-01-30 01:00:21,425 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-01-30 01:00:21,425 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2018-01-30 01:00:21,425 INFO L87 Difference]: Start difference. First operand 47 states and 50 transitions. Second operand 14 states. [2018-01-30 01:00:21,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:00:21,789 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2018-01-30 01:00:21,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-01-30 01:00:21,789 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 28 [2018-01-30 01:00:21,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:00:21,790 INFO L225 Difference]: With dead ends: 50 [2018-01-30 01:00:21,790 INFO L226 Difference]: Without dead ends: 49 [2018-01-30 01:00:21,790 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2018-01-30 01:00:21,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-01-30 01:00:21,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2018-01-30 01:00:21,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-01-30 01:00:21,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 52 transitions. [2018-01-30 01:00:21,794 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 52 transitions. Word has length 28 [2018-01-30 01:00:21,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:00:21,794 INFO L432 AbstractCegarLoop]: Abstraction has 48 states and 52 transitions. [2018-01-30 01:00:21,794 INFO L433 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-01-30 01:00:21,794 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 52 transitions. [2018-01-30 01:00:21,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-01-30 01:00:21,795 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:00:21,795 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, 1, 1, 1] [2018-01-30 01:00:21,795 INFO L371 AbstractCegarLoop]: === Iteration 8 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:00:21,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1830310713, now seen corresponding path program 1 times [2018-01-30 01:00:21,795 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:00:21,796 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:00:21,796 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:21,796 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:00:21,796 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:21,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:00:21,806 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:00:21,933 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 01:00:21,933 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 01:00:21,933 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-01-30 01:00:21,934 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-30 01:00:21,934 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-30 01:00:21,934 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2018-01-30 01:00:21,934 INFO L87 Difference]: Start difference. First operand 48 states and 52 transitions. Second operand 10 states. [2018-01-30 01:00:22,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 01:00:22,094 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2018-01-30 01:00:22,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-30 01:00:22,094 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 28 [2018-01-30 01:00:22,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 01:00:22,095 INFO L225 Difference]: With dead ends: 51 [2018-01-30 01:00:22,095 INFO L226 Difference]: Without dead ends: 50 [2018-01-30 01:00:22,095 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=186, Unknown=0, NotChecked=0, Total=240 [2018-01-30 01:00:22,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-01-30 01:00:22,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2018-01-30 01:00:22,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-01-30 01:00:22,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2018-01-30 01:00:22,100 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 28 [2018-01-30 01:00:22,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 01:00:22,100 INFO L432 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2018-01-30 01:00:22,100 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-30 01:00:22,100 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2018-01-30 01:00:22,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2018-01-30 01:00:22,101 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 01:00:22,101 INFO L350 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2018-01-30 01:00:22,101 INFO L371 AbstractCegarLoop]: === Iteration 9 === [cstrcpyErr2RequiresViolation, cstrcpyErr3RequiresViolation, cstrcpyErr0RequiresViolation, cstrcpyErr1RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 01:00:22,101 INFO L82 PathProgramCache]: Analyzing trace with hash 240142637, now seen corresponding path program 1 times [2018-01-30 01:00:22,101 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 01:00:22,101 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 01:00:22,102 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:22,102 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:00:22,102 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 01:00:22,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:00:22,118 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 01:00:22,374 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 01:00:22,374 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 01:00:22,374 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 01:00:22,381 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 01:00:22,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 01:00:22,414 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 01:00:22,458 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 12 [2018-01-30 01:00:22,470 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 15 [2018-01-30 01:00:22,475 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: var is still there: v_arrayElimArr_1 term size 6 at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:221) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimOneRec(ElimStorePlain.java:225) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.doElimAllRec(ElimStorePlain.java:247) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.ElimStorePlain.elimAllRec(ElimStorePlain.java:199) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.elim(PartialQuantifierElimination.java:270) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.PartialQuantifierElimination.tryToEliminate(PartialQuantifierElimination.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:243) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:445) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:237) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:185) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:218) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:396) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-01-30 01:00:22,478 INFO L168 Benchmark]: Toolchain (without parser) took 43643.49 ms. Allocated memory was 303.6 MB in the beginning and 2.2 GB in the end (delta: 1.9 GB). Free memory was 262.4 MB in the beginning and 1.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 439.9 MB. Max. memory is 5.3 GB. [2018-01-30 01:00:22,479 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 303.6 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 01:00:22,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.74 ms. Allocated memory is still 303.6 MB. Free memory was 262.4 MB in the beginning and 252.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-30 01:00:22,480 INFO L168 Benchmark]: Boogie Preprocessor took 30.61 ms. Allocated memory is still 303.6 MB. Free memory was 252.4 MB in the beginning and 250.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-30 01:00:22,480 INFO L168 Benchmark]: RCFGBuilder took 231.89 ms. Allocated memory is still 303.6 MB. Free memory was 250.4 MB in the beginning and 231.4 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 5.3 GB. [2018-01-30 01:00:22,481 INFO L168 Benchmark]: IcfgTransformer took 40359.67 ms. Allocated memory was 303.6 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 231.4 MB in the beginning and 664.3 MB in the end (delta: -432.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. [2018-01-30 01:00:22,481 INFO L168 Benchmark]: TraceAbstraction took 2817.49 ms. Allocated memory was 2.0 GB in the beginning and 2.2 GB in the end (delta: 191.9 MB). Free memory was 664.3 MB in the beginning and 1.7 GB in the end (delta: -1.1 GB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 01:00:22,483 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 303.6 MB. Free memory is still 268.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 195.74 ms. Allocated memory is still 303.6 MB. Free memory was 262.4 MB in the beginning and 252.4 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.61 ms. Allocated memory is still 303.6 MB. Free memory was 252.4 MB in the beginning and 250.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 231.89 ms. Allocated memory is still 303.6 MB. Free memory was 250.4 MB in the beginning and 231.4 MB in the end (delta: 19.0 MB). Peak memory consumption was 19.0 MB. Max. memory is 5.3 GB. * IcfgTransformer took 40359.67 ms. Allocated memory was 303.6 MB in the beginning and 2.0 GB in the end (delta: 1.7 GB). Free memory was 231.4 MB in the beginning and 664.3 MB in the end (delta: -432.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 5.3 GB. * TraceAbstraction took 2817.49 ms. Allocated memory was 2.0 GB in the beginning and 2.2 GB in the end (delta: 191.9 MB). Free memory was 664.3 MB in the beginning and 1.7 GB in the end (delta: -1.1 GB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 57 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 3 LocStat_NO_SUPPORTING_EQUALITIES : 1758 LocStat_NO_SUPPORTING_DISEQUALITIES : 949 LocStat_NO_DISJUNCTIONS : -114 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 78 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 147 TransStat_NO_SUPPORTING_DISEQUALITIES : 9 TransStat_NO_DISJUNCTIONS : 80 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 42.869363 RENAME_VARIABLES(MILLISECONDS) : 1.883040 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 21.161272 PROJECTAWAY(MILLISECONDS) : 0.228136 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.031218 DISJOIN(MILLISECONDS) : 2.035990 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 1.927470 ADD_EQUALITY(MILLISECONDS) : 0.009289 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.006883 #CONJOIN_DISJUNCTIVE : 627 #RENAME_VARIABLES : 1344 #UNFREEZE : 0 #CONJOIN : 895 #PROJECTAWAY : 772 #ADD_WEAK_EQUALITY : 11 #DISJOIN : 201 #RENAME_VARIABLES_DISJUNCTIVE : 1318 #ADD_EQUALITY : 149 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 7 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int] : 3 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0 : 3 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 3 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_1 : 2 COUNT_BLOCKS_for_[#memory_int]_at_dim_1 : 1 COUNT_ARRAY_READS for [#memory_int] : 3 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: var is still there: v_arrayElimArr_1 term size 6 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: var is still there: v_arrayElimArr_1 term size 6: de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.Elim1Store.elim1(Elim1Store.java:452) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-30_01-00-22-495.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-30_01-00-22-495.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-30_01-00-22-495.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrcpy-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-30_01-00-22-495.csv Received shutdown request...