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/cstrchr-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-30 00:58:13,501 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-30 00:58:13,503 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-30 00:58:13,517 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-30 00:58:13,517 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-30 00:58:13,518 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-30 00:58:13,520 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-30 00:58:13,521 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-30 00:58:13,523 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-30 00:58:13,524 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-30 00:58:13,524 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-30 00:58:13,524 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-30 00:58:13,525 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-30 00:58:13,527 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-30 00:58:13,528 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-30 00:58:13,530 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-30 00:58:13,533 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-30 00:58:13,535 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-30 00:58:13,536 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-30 00:58:13,538 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-30 00:58:13,540 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-30 00:58:13,540 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-30 00:58:13,541 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-30 00:58:13,542 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-30 00:58:13,543 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-30 00:58:13,544 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-30 00:58:13,544 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-30 00:58:13,545 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-30 00:58:13,545 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-30 00:58:13,545 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-30 00:58:13,546 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-30 00:58:13,546 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 00:58:13,556 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-30 00:58:13,557 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-30 00:58:13,558 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-30 00:58:13,558 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-30 00:58:13,558 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-30 00:58:13,558 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-30 00:58:13,559 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-30 00:58:13,559 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-30 00:58:13,559 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-30 00:58:13,560 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-30 00:58:13,560 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-30 00:58:13,560 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-30 00:58:13,560 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-30 00:58:13,560 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-30 00:58:13,561 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-30 00:58:13,561 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-30 00:58:13,561 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-30 00:58:13,561 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-30 00:58:13,562 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-30 00:58:13,562 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-30 00:58:13,562 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-30 00:58:13,562 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-30 00:58:13,562 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-30 00:58:13,563 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-30 00:58:13,563 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-30 00:58:13,563 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-30 00:58:13,563 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-30 00:58:13,563 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-30 00:58:13,564 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-30 00:58:13,564 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-30 00:58:13,564 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-30 00:58:13,564 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-30 00:58:13,565 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-30 00:58:13,565 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-30 00:58:13,606 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-30 00:58:13,619 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-30 00:58:13,623 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-30 00:58:13,625 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-30 00:58:13,625 INFO L276 PluginConnector]: CDTParser initialized [2018-01-30 00:58:13,626 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrchr-alloca_true-valid-memsafety_true-termination.i [2018-01-30 00:58:13,811 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-30 00:58:13,817 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-01-30 00:58:13,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-30 00:58:13,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-30 00:58:13,824 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-30 00:58:13,824 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:58:13" (1/1) ... [2018-01-30 00:58:13,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67990aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:58:13, skipping insertion in model container [2018-01-30 00:58:13,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 12:58:13" (1/1) ... [2018-01-30 00:58:13,841 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:58:13,878 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-30 00:58:13,986 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:58:14,000 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-30 00:58:14,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:58:14 WrapperNode [2018-01-30 00:58:14,006 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-30 00:58:14,007 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-30 00:58:14,007 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-30 00:58:14,007 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-30 00:58:14,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:58:14" (1/1) ... [2018-01-30 00:58:14,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:58:14" (1/1) ... [2018-01-30 00:58:14,035 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:58:14" (1/1) ... [2018-01-30 00:58:14,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:58:14" (1/1) ... [2018-01-30 00:58:14,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:58:14" (1/1) ... [2018-01-30 00:58:14,044 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:58:14" (1/1) ... [2018-01-30 00:58:14,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:58:14" (1/1) ... [2018-01-30 00:58:14,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-30 00:58:14,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-30 00:58:14,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-30 00:58:14,048 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-30 00:58:14,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:58:14" (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 00:58:14,095 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-30 00:58:14,095 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-30 00:58:14,095 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrchr [2018-01-30 00:58:14,096 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-30 00:58:14,096 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-01-30 00:58:14,096 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-01-30 00:58:14,096 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-30 00:58:14,096 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-30 00:58:14,096 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-30 00:58:14,096 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-01-30 00:58:14,097 INFO L128 BoogieDeclarations]: Found specification of procedure cstrchr [2018-01-30 00:58:14,097 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-30 00:58:14,097 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-30 00:58:14,097 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-30 00:58:14,302 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-30 00:58:14,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:58:14 BoogieIcfgContainer [2018-01-30 00:58:14,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-30 00:58:14,303 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2018-01-30 00:58:14,303 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2018-01-30 00:58:14,304 INFO L276 PluginConnector]: IcfgTransformer initialized [2018-01-30 00:58:14,306 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:58:14" (1/1) ... [2018-01-30 00:58:14,313 INFO L103 apSepIcfgTransformer]: HeapSepIcfgTransformer: Starting heap partitioning [2018-01-30 00:58:14,313 INFO L104 apSepIcfgTransformer]: To be partitioned heap arrays found [#memory_int] [2018-01-30 00:58:14,313 INFO L150 apSepIcfgTransformer]: starting freeze-var-style preprocessing [2018-01-30 00:58:14,351 INFO L162 apSepIcfgTransformer]: finished StoreIndexFreezer, created 5 freeze vars and freeze var literals (each corresponds to one heap write) [2018-01-30 00:58:14,376 INFO L221 apSepIcfgTransformer]: finished preprocessing for the equality analysis [2018-01-30 00:58:14,425 INFO L101 FixpointEngine]: Starting fixpoint engine with domain VPDomain (maxUnwinding=3, maxParallelStates=2) [2018-01-30 00:58:21,684 INFO L311 AbstractInterpreter]: Visited 68 different actions 295 times. Merged at 45 different actions 160 times. Never widened. Found 18 fixpoints after 5 different actions. Largest state had 41 variables. [2018-01-30 00:58:21,686 INFO L229 apSepIcfgTransformer]: finished equality analysis [2018-01-30 00:58:21,696 INFO L244 HeapSepPreAnalysis]: Number of read from array group [#memory_int] : 4 [2018-01-30 00:58:21,696 INFO L241 apSepIcfgTransformer]: Finished pre analysis before partitioning [2018-01-30 00:58:21,697 INFO L242 apSepIcfgTransformer]: array groups: Set: [#memory_int] [2018-01-30 00:58:21,697 INFO L244 apSepIcfgTransformer]: select infos: Set: ((select |v_#memory_int_7| v_main_~nondetString~3.base_2), at (SUMMARY for call write~int(0, ~nondetString~3.base, ~nondetString~3.offset + (~length~3 - 1) * 1, 1); srcloc: L552)) ((select (select |v_#memory_int_1| v_cstrchr_~s.base_2) v_cstrchr_~s.offset_2), at (SUMMARY for call #t~mem0 := read~int(~s.base, ~s.offset, 1); srcloc: L542)) ((select (select |v_#memory_int_2| v_cstrchr_~s.base_5) v_cstrchr_~s.offset_4), at (SUMMARY for call #t~mem1 := read~int(~s.base, ~s.offset, 1); srcloc: L542''')) ((select (select |v_#memory_int_3| v_cstrchr_~s.base_10) v_cstrchr_~s.offset_8), at (SUMMARY for call #t~mem4 := read~int(~s.base, ~s.offset, 1); srcloc: L542''''''''''''''')) [2018-01-30 00:58:21,701 INFO L547 PartitionManager]: partitioning result: [2018-01-30 00:58:21,701 INFO L552 PartitionManager]: location blocks for array group [#memory_int] [2018-01-30 00:58:21,702 INFO L561 PartitionManager]: at dimension 0 [2018-01-30 00:58:21,702 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-01-30 00:58:21,702 INFO L563 PartitionManager]: # location blocks :2 [2018-01-30 00:58:21,702 INFO L561 PartitionManager]: at dimension 1 [2018-01-30 00:58:21,702 INFO L562 PartitionManager]: # array writes (possibly including 1 dummy write/NoStoreIndexInfo) : 2 [2018-01-30 00:58:21,702 INFO L563 PartitionManager]: # location blocks :2 [2018-01-30 00:58:21,703 INFO L86 ransitionTransformer]: executing heap partitioning transformation [2018-01-30 00:58:21,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 12:58:21 BasicIcfg [2018-01-30 00:58:21,723 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2018-01-30 00:58:21,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-30 00:58:21,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-30 00:58:21,726 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-30 00:58:21,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 12:58:13" (1/4) ... [2018-01-30 00:58:21,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341a9298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:58:21, skipping insertion in model container [2018-01-30 00:58:21,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 12:58:14" (2/4) ... [2018-01-30 00:58:21,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341a9298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 12:58:21, skipping insertion in model container [2018-01-30 00:58:21,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 12:58:14" (3/4) ... [2018-01-30 00:58:21,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@341a9298 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 12:58:21, skipping insertion in model container [2018-01-30 00:58:21,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 30.01 12:58:21" (4/4) ... [2018-01-30 00:58:21,729 INFO L107 eAbstractionObserver]: Analyzing ICFG HeapSeparatedIcfg [2018-01-30 00:58:21,735 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-30 00:58:21,801 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-01-30 00:58:21,831 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-30 00:58:21,831 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-30 00:58:21,831 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-30 00:58:21,831 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-30 00:58:21,832 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-30 00:58:21,832 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-30 00:58:21,832 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-30 00:58:21,832 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-30 00:58:21,832 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-30 00:58:21,842 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2018-01-30 00:58:21,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-30 00:58:21,847 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:58:21,848 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:58:21,848 INFO L371 AbstractCegarLoop]: === Iteration 1 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 00:58:21,851 INFO L82 PathProgramCache]: Analyzing trace with hash 701543362, now seen corresponding path program 1 times [2018-01-30 00:58:21,852 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:58:21,853 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:58:21,890 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:58:21,890 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:58:21,890 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:58:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:58:21,934 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:58:21,991 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 00:58:21,993 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:58:21,994 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 00:58:21,995 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 00:58:22,002 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 00:58:22,002 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 00:58:22,004 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 4 states. [2018-01-30 00:58:22,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:58:22,099 INFO L93 Difference]: Finished difference Result 82 states and 89 transitions. [2018-01-30 00:58:22,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-30 00:58:22,101 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2018-01-30 00:58:22,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:58:22,112 INFO L225 Difference]: With dead ends: 82 [2018-01-30 00:58:22,112 INFO L226 Difference]: Without dead ends: 57 [2018-01-30 00:58:22,115 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 00:58:22,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2018-01-30 00:58:22,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2018-01-30 00:58:22,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-01-30 00:58:22,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 62 transitions. [2018-01-30 00:58:22,147 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 62 transitions. Word has length 9 [2018-01-30 00:58:22,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:58:22,147 INFO L432 AbstractCegarLoop]: Abstraction has 57 states and 62 transitions. [2018-01-30 00:58:22,147 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 00:58:22,147 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 62 transitions. [2018-01-30 00:58:22,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-01-30 00:58:22,148 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:58:22,148 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:58:22,148 INFO L371 AbstractCegarLoop]: === Iteration 2 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 00:58:22,148 INFO L82 PathProgramCache]: Analyzing trace with hash 701543364, now seen corresponding path program 1 times [2018-01-30 00:58:22,148 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:58:22,148 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:58:22,149 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:58:22,149 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:58:22,149 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:58:22,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:58:22,158 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:58:22,247 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 00:58:22,248 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:58:22,248 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 00:58:22,249 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:58:22,250 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:58:22,250 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:58:22,250 INFO L87 Difference]: Start difference. First operand 57 states and 62 transitions. Second operand 5 states. [2018-01-30 00:58:22,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:58:22,310 INFO L93 Difference]: Finished difference Result 57 states and 62 transitions. [2018-01-30 00:58:22,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-01-30 00:58:22,311 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-01-30 00:58:22,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:58:22,312 INFO L225 Difference]: With dead ends: 57 [2018-01-30 00:58:22,313 INFO L226 Difference]: Without dead ends: 56 [2018-01-30 00:58:22,313 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 00:58:22,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2018-01-30 00:58:22,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2018-01-30 00:58:22,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2018-01-30 00:58:22,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 61 transitions. [2018-01-30 00:58:22,321 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 61 transitions. Word has length 9 [2018-01-30 00:58:22,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:58:22,321 INFO L432 AbstractCegarLoop]: Abstraction has 56 states and 61 transitions. [2018-01-30 00:58:22,321 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:58:22,322 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 61 transitions. [2018-01-30 00:58:22,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-30 00:58:22,322 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:58:22,322 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:58:22,322 INFO L371 AbstractCegarLoop]: === Iteration 3 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 00:58:22,323 INFO L82 PathProgramCache]: Analyzing trace with hash 1519050866, now seen corresponding path program 1 times [2018-01-30 00:58:22,323 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:58:22,323 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:58:22,324 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:58:22,324 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:58:22,324 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:58:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:58:22,339 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:58:22,423 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 00:58:22,423 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:58:22,423 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-01-30 00:58:22,423 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-30 00:58:22,423 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-30 00:58:22,424 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-01-30 00:58:22,424 INFO L87 Difference]: Start difference. First operand 56 states and 61 transitions. Second operand 8 states. [2018-01-30 00:58:22,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:58:22,636 INFO L93 Difference]: Finished difference Result 86 states and 94 transitions. [2018-01-30 00:58:22,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-01-30 00:58:22,636 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-01-30 00:58:22,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:58:22,640 INFO L225 Difference]: With dead ends: 86 [2018-01-30 00:58:22,641 INFO L226 Difference]: Without dead ends: 83 [2018-01-30 00:58:22,641 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-01-30 00:58:22,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2018-01-30 00:58:22,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 67. [2018-01-30 00:58:22,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-01-30 00:58:22,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 77 transitions. [2018-01-30 00:58:22,650 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 77 transitions. Word has length 15 [2018-01-30 00:58:22,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:58:22,651 INFO L432 AbstractCegarLoop]: Abstraction has 67 states and 77 transitions. [2018-01-30 00:58:22,651 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-30 00:58:22,651 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 77 transitions. [2018-01-30 00:58:22,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-01-30 00:58:22,652 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:58:22,652 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:58:22,652 INFO L371 AbstractCegarLoop]: === Iteration 4 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 00:58:22,652 INFO L82 PathProgramCache]: Analyzing trace with hash 1519050864, now seen corresponding path program 1 times [2018-01-30 00:58:22,652 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:58:22,652 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:58:22,653 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:58:22,653 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:58:22,653 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:58:22,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:58:22,665 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:58:22,713 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 00:58:22,714 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:58:22,714 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-30 00:58:22,714 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-01-30 00:58:22,714 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-01-30 00:58:22,714 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:58:22,714 INFO L87 Difference]: Start difference. First operand 67 states and 77 transitions. Second operand 5 states. [2018-01-30 00:58:22,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:58:22,807 INFO L93 Difference]: Finished difference Result 68 states and 77 transitions. [2018-01-30 00:58:22,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-30 00:58:22,807 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-01-30 00:58:22,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:58:22,808 INFO L225 Difference]: With dead ends: 68 [2018-01-30 00:58:22,808 INFO L226 Difference]: Without dead ends: 65 [2018-01-30 00:58:22,808 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-01-30 00:58:22,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2018-01-30 00:58:22,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2018-01-30 00:58:22,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2018-01-30 00:58:22,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 72 transitions. [2018-01-30 00:58:22,814 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 72 transitions. Word has length 15 [2018-01-30 00:58:22,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:58:22,814 INFO L432 AbstractCegarLoop]: Abstraction has 65 states and 72 transitions. [2018-01-30 00:58:22,814 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-01-30 00:58:22,814 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 72 transitions. [2018-01-30 00:58:22,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-01-30 00:58:22,815 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:58:22,815 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:58:22,815 INFO L371 AbstractCegarLoop]: === Iteration 5 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 00:58:22,816 INFO L82 PathProgramCache]: Analyzing trace with hash 1979801878, now seen corresponding path program 1 times [2018-01-30 00:58:22,816 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:58:22,816 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:58:22,817 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:58:22,817 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:58:22,817 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:58:22,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:58:22,830 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:58:22,877 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 00:58:22,877 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:58:22,877 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 00:58:22,878 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-30 00:58:22,878 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-30 00:58:22,878 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-30 00:58:22,878 INFO L87 Difference]: Start difference. First operand 65 states and 72 transitions. Second operand 4 states. [2018-01-30 00:58:22,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:58:22,967 INFO L93 Difference]: Finished difference Result 65 states and 72 transitions. [2018-01-30 00:58:22,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-30 00:58:22,968 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-01-30 00:58:22,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:58:22,969 INFO L225 Difference]: With dead ends: 65 [2018-01-30 00:58:22,969 INFO L226 Difference]: Without dead ends: 46 [2018-01-30 00:58:22,970 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-30 00:58:22,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-01-30 00:58:22,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-01-30 00:58:22,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-01-30 00:58:22,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 50 transitions. [2018-01-30 00:58:22,981 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 50 transitions. Word has length 17 [2018-01-30 00:58:22,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:58:22,982 INFO L432 AbstractCegarLoop]: Abstraction has 46 states and 50 transitions. [2018-01-30 00:58:22,982 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-30 00:58:22,982 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 50 transitions. [2018-01-30 00:58:22,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-01-30 00:58:22,983 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:58:22,983 INFO L350 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:58:22,983 INFO L371 AbstractCegarLoop]: === Iteration 6 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 00:58:22,984 INFO L82 PathProgramCache]: Analyzing trace with hash -28205583, now seen corresponding path program 1 times [2018-01-30 00:58:22,984 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:58:22,984 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:58:22,985 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:58:22,985 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:58:22,985 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:58:22,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:58:22,996 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:58:23,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:58:23,015 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-30 00:58:23,015 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-30 00:58:23,015 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-01-30 00:58:23,015 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-01-30 00:58:23,015 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-30 00:58:23,016 INFO L87 Difference]: Start difference. First operand 46 states and 50 transitions. Second operand 3 states. [2018-01-30 00:58:23,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-30 00:58:23,027 INFO L93 Difference]: Finished difference Result 69 states and 75 transitions. [2018-01-30 00:58:23,027 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-01-30 00:58:23,027 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-01-30 00:58:23,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-30 00:58:23,028 INFO L225 Difference]: With dead ends: 69 [2018-01-30 00:58:23,028 INFO L226 Difference]: Without dead ends: 47 [2018-01-30 00:58:23,028 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-01-30 00:58:23,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-01-30 00:58:23,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-01-30 00:58:23,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-01-30 00:58:23,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 50 transitions. [2018-01-30 00:58:23,033 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 50 transitions. Word has length 26 [2018-01-30 00:58:23,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-30 00:58:23,033 INFO L432 AbstractCegarLoop]: Abstraction has 47 states and 50 transitions. [2018-01-30 00:58:23,033 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-01-30 00:58:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 50 transitions. [2018-01-30 00:58:23,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-01-30 00:58:23,034 INFO L342 BasicCegarLoop]: Found error trace [2018-01-30 00:58:23,034 INFO L350 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-30 00:58:23,034 INFO L371 AbstractCegarLoop]: === Iteration 7 === [cstrchrErr4RequiresViolation, cstrchrErr2RequiresViolation, cstrchrErr5RequiresViolation, cstrchrErr3RequiresViolation, cstrchrErr1RequiresViolation, cstrchrErr0RequiresViolation, mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-30 00:58:23,034 INFO L82 PathProgramCache]: Analyzing trace with hash 320152967, now seen corresponding path program 1 times [2018-01-30 00:58:23,034 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-30 00:58:23,034 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-30 00:58:23,035 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:58:23,035 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:58:23,035 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-30 00:58:23,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:58:23,053 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-30 00:58:23,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-30 00:58:23,288 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-30 00:58:23,288 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 00:58:23,303 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-30 00:58:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-30 00:58:23,327 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-30 00:58:23,367 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 00:58:23,370 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 00:58:23,375 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 00:58:23,378 INFO L168 Benchmark]: Toolchain (without parser) took 9566.19 ms. Allocated memory was 307.8 MB in the beginning and 1.1 GB in the end (delta: 800.1 MB). Free memory was 267.6 MB in the beginning and 883.3 MB in the end (delta: -615.7 MB). Peak memory consumption was 184.4 MB. Max. memory is 5.3 GB. [2018-01-30 00:58:23,379 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 307.8 MB. Free memory is still 273.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:58:23,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.85 ms. Allocated memory is still 307.8 MB. Free memory was 266.6 MB in the beginning and 256.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. [2018-01-30 00:58:23,379 INFO L168 Benchmark]: Boogie Preprocessor took 40.05 ms. Allocated memory is still 307.8 MB. Free memory was 256.6 MB in the beginning and 254.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. [2018-01-30 00:58:23,380 INFO L168 Benchmark]: RCFGBuilder took 255.23 ms. Allocated memory is still 307.8 MB. Free memory was 254.6 MB in the beginning and 236.6 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 5.3 GB. [2018-01-30 00:58:23,380 INFO L168 Benchmark]: IcfgTransformer took 7419.88 ms. Allocated memory was 307.8 MB in the beginning and 891.8 MB in the end (delta: 584.1 MB). Free memory was 236.6 MB in the beginning and 398.4 MB in the end (delta: -161.8 MB). Peak memory consumption was 422.3 MB. Max. memory is 5.3 GB. [2018-01-30 00:58:23,381 INFO L168 Benchmark]: TraceAbstraction took 1653.88 ms. Allocated memory was 891.8 MB in the beginning and 1.1 GB in the end (delta: 216.0 MB). Free memory was 398.4 MB in the beginning and 883.3 MB in the end (delta: -484.9 MB). There was no memory consumed. Max. memory is 5.3 GB. [2018-01-30 00:58:23,383 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 307.8 MB. Free memory is still 273.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 188.85 ms. Allocated memory is still 307.8 MB. Free memory was 266.6 MB in the beginning and 256.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 40.05 ms. Allocated memory is still 307.8 MB. Free memory was 256.6 MB in the beginning and 254.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 5.3 GB. * RCFGBuilder took 255.23 ms. Allocated memory is still 307.8 MB. Free memory was 254.6 MB in the beginning and 236.6 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 5.3 GB. * IcfgTransformer took 7419.88 ms. Allocated memory was 307.8 MB in the beginning and 891.8 MB in the end (delta: 584.1 MB). Free memory was 236.6 MB in the beginning and 398.4 MB in the end (delta: -161.8 MB). Peak memory consumption was 422.3 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1653.88 ms. Allocated memory was 891.8 MB in the beginning and 1.1 GB in the end (delta: 216.0 MB). Free memory was 398.4 MB in the beginning and 883.3 MB in the end (delta: -484.9 MB). There was no memory consumed. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - StatisticsResult: ArrayEqualityDomainStatistics #Locations : 56 LocStat_MAX_WEQGRAPH_SIZE : 4 LocStat_MAX_SIZEOF_WEQEDGELABEL : 1 LocStat_NO_SUPPORTING_EQUALITIES : 866 LocStat_NO_SUPPORTING_DISEQUALITIES : 296 LocStat_NO_DISJUNCTIONS : -112 LocStat_MAX_NO_DISJUNCTIONS : -1 #Transitions : 77 TransStat_MAX_WEQGRAPH_SIZE : 2 TransStat_MAX_SIZEOF_WEQEDGELABEL : 1 TransStat_NO_SUPPORTING_EQUALITIES : 112 TransStat_NO_SUPPORTING_DISEQUALITIES : 10 TransStat_NO_DISJUNCTIONS : 82 TransStat_MAX_NO_DISJUNCTIONS : 2 - StatisticsResult: EqConstraintFactoryStatistics CONJOIN_DISJUNCTIVE(MILLISECONDS) : 6.993299 RENAME_VARIABLES(MILLISECONDS) : 0.022631 UNFREEZE(MILLISECONDS) : 0.000000 CONJOIN(MILLISECONDS) : 5.042902 PROJECTAWAY(MILLISECONDS) : 6.870468 ADD_WEAK_EQUALITY(MILLISECONDS) : 0.104837 DISJOIN(MILLISECONDS) : 0.209298 RENAME_VARIABLES_DISJUNCTIVE(MILLISECONDS) : 0.041659 ADD_EQUALITY(MILLISECONDS) : 0.014752 DISJOIN_DISJUNCTIVE(MILLISECONDS) : 0.000000 ADD_DISEQUALITY(MILLISECONDS) : 0.008901 #CONJOIN_DISJUNCTIVE : 452 #RENAME_VARIABLES : 997 #UNFREEZE : 0 #CONJOIN : 692 #PROJECTAWAY : 646 #ADD_WEAK_EQUALITY : 6 #DISJOIN : 83 #RENAME_VARIABLES_DISJUNCTIVE : 972 #ADD_EQUALITY : 113 #DISJOIN_DISJUNCTIVE : 0 #ADD_DISEQUALITY : 9 * Results from de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation: - StatisticsResult: HeapSeparatorStatistics #COUNT_NEW_ARRAY_VARS_[#memory_int] : 4 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_0 : 2 COUNT_BLOCKS_for_[#memory_int]_at_dim_0 : 2 COUNT_ARRAY_WRITES_for_[#memory_int]_at_dim_1 : 2 COUNT_BLOCKS_for_[#memory_int]_at_dim_1 : 2 COUNT_ARRAY_READS for [#memory_int] : 4 * 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/cstrchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-Benchmark-0-2018-01-30_00-58-23-395.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-VPDomainBenchmark-0-2018-01-30_00-58-23-395.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-BenchmarkWithCounters-0-2018-01-30_00-58-23-395.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/cstrchr-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerCTransformed.xml/Csv-HeapSeparatorBenchmark-0-2018-01-30_00-58-23-395.csv Received shutdown request...