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/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/memsafety/test-0513_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:36:36,499 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:36:36,500 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:36:36,510 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:36:36,510 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:36:36,511 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:36:36,512 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:36:36,514 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:36:36,515 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:36:36,515 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:36:36,516 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:36:36,516 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:36:36,517 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:36:36,518 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:36:36,518 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:36:36,520 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:36:36,521 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:36:36,523 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:36:36,524 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:36:36,524 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:36:36,526 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:36:36,526 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:36:36,526 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:36:36,527 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:36:36,528 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:36:36,529 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:36:36,529 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:36:36,529 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:36:36,529 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:36:36,529 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:36:36,530 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:36:36,530 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-04 04:36:36,539 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:36:36,539 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:36:36,540 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:36:36,540 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:36:36,540 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:36:36,541 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:36:36,541 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:36:36,541 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:36:36,541 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:36:36,541 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:36:36,541 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:36:36,542 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:36:36,542 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:36:36,542 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:36:36,542 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:36:36,542 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:36:36,542 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:36:36,543 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:36:36,543 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:36:36,543 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:36:36,543 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:36:36,543 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:36:36,543 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:36:36,543 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:36:36,544 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:36:36,574 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:36:36,585 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:36:36,588 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:36:36,589 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:36:36,590 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:36:36,590 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/memsafety/test-0513_true-valid-memsafety.i [2018-02-04 04:36:36,723 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:36:36,724 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:36:36,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:36:36,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:36:36,730 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:36:36,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:36:36" (1/1) ... [2018-02-04 04:36:36,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ac502e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:36:36, skipping insertion in model container [2018-02-04 04:36:36,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:36:36" (1/1) ... [2018-02-04 04:36:36,747 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:36:36,774 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:36:36,876 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:36:36,891 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:36:36,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:36:36 WrapperNode [2018-02-04 04:36:36,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:36:36,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:36:36,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:36:36,899 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:36:36,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:36:36" (1/1) ... [2018-02-04 04:36:36,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:36:36" (1/1) ... [2018-02-04 04:36:36,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:36:36" (1/1) ... [2018-02-04 04:36:36,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:36:36" (1/1) ... [2018-02-04 04:36:36,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:36:36" (1/1) ... [2018-02-04 04:36:36,927 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:36:36" (1/1) ... [2018-02-04 04:36:36,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:36:36" (1/1) ... [2018-02-04 04:36:36,929 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:36:36,930 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:36:36,930 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:36:36,930 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:36:36,931 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:36:36" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:36:36,967 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:36:36,967 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:36:36,968 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:36:36,968 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:36:36,968 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:36:36,968 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 04:36:36,968 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 04:36:36,968 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:36:36,968 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:36:36,968 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:36:36,968 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:36:36,968 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:36:36,968 INFO L128 BoogieDeclarations]: Found specification of procedure abort [2018-02-04 04:36:36,968 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:36:36,969 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:36:36,969 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:36:36,969 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:36:37,304 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:36:37,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:36:37 BoogieIcfgContainer [2018-02-04 04:36:37,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:36:37,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:36:37,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:36:37,308 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:36:37,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:36:36" (1/3) ... [2018-02-04 04:36:37,308 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20161039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:36:37, skipping insertion in model container [2018-02-04 04:36:37,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:36:36" (2/3) ... [2018-02-04 04:36:37,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20161039 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:36:37, skipping insertion in model container [2018-02-04 04:36:37,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:36:37" (3/3) ... [2018-02-04 04:36:37,310 INFO L107 eAbstractionObserver]: Analyzing ICFG test-0513_true-valid-memsafety.i [2018-02-04 04:36:37,315 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:36:37,320 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 59 error locations. [2018-02-04 04:36:37,356 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:36:37,356 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:36:37,356 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:36:37,356 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:36:37,356 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:36:37,357 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:36:37,357 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:36:37,357 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:36:37,358 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:36:37,375 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2018-02-04 04:36:37,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-02-04 04:36:37,385 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:36:37,386 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:36:37,390 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr58EnsuresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:36:37,394 INFO L82 PathProgramCache]: Analyzing trace with hash -894299951, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:36:37,405 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:36:37,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:37,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:37,493 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:36:37,493 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:36:37,494 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:36:37,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:37,494 INFO L182 omatonBuilderFactory]: Interpolants [145#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 140#true, 141#false] [2018-02-04 04:36:37,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:37,495 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:36:37,507 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:36:37,507 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:36:37,510 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 3 states. [2018-02-04 04:36:37,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:36:37,774 INFO L93 Difference]: Finished difference Result 180 states and 191 transitions. [2018-02-04 04:36:37,774 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:36:37,776 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-02-04 04:36:37,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:36:37,784 INFO L225 Difference]: With dead ends: 180 [2018-02-04 04:36:37,784 INFO L226 Difference]: Without dead ends: 176 [2018-02-04 04:36:37,786 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:36:37,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2018-02-04 04:36:37,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 138. [2018-02-04 04:36:37,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 138 states. [2018-02-04 04:36:37,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 147 transitions. [2018-02-04 04:36:37,870 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 147 transitions. Word has length 9 [2018-02-04 04:36:37,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:36:37,870 INFO L432 AbstractCegarLoop]: Abstraction has 138 states and 147 transitions. [2018-02-04 04:36:37,870 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:36:37,870 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 147 transitions. [2018-02-04 04:36:37,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-04 04:36:37,871 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:36:37,871 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:36:37,871 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr58EnsuresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:36:37,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1922337046, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:36:37,874 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:36:37,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:37,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:37,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:37,911 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:36:37,911 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:36:37,911 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:36:37,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:37,911 INFO L182 omatonBuilderFactory]: Interpolants [464#true, 465#false, 469#(and (= main_~data~0.offset 0) (= main_~data~0.base 0)), 470#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:36:37,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:37,913 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:36:37,913 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:36:37,913 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:36:37,913 INFO L87 Difference]: Start difference. First operand 138 states and 147 transitions. Second operand 4 states. [2018-02-04 04:36:38,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:36:38,096 INFO L93 Difference]: Finished difference Result 154 states and 161 transitions. [2018-02-04 04:36:38,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:36:38,096 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-02-04 04:36:38,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:36:38,097 INFO L225 Difference]: With dead ends: 154 [2018-02-04 04:36:38,097 INFO L226 Difference]: Without dead ends: 153 [2018-02-04 04:36:38,098 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:36:38,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-02-04 04:36:38,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 147. [2018-02-04 04:36:38,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-02-04 04:36:38,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 159 transitions. [2018-02-04 04:36:38,106 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 159 transitions. Word has length 12 [2018-02-04 04:36:38,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:36:38,106 INFO L432 AbstractCegarLoop]: Abstraction has 147 states and 159 transitions. [2018-02-04 04:36:38,106 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:36:38,107 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 159 transitions. [2018-02-04 04:36:38,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 04:36:38,107 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:36:38,107 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:36:38,107 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr58EnsuresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:36:38,107 INFO L82 PathProgramCache]: Analyzing trace with hash 537460283, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:36:38,110 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:36:38,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:38,118 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:36:38,124 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:36:38,125 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:36:38,126 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:36:38,126 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:36:38,173 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |c_#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:36:38,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:38,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:38,229 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:36:38,230 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:36:38,230 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:36:38,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:38,230 INFO L182 omatonBuilderFactory]: Interpolants [774#true, 775#false, 779#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 780#(= 1 (select |#valid| |main_#t~malloc1.base|)), 781#(= 1 (select |#valid| main_~item~0.base)), 782#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:36:38,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:38,230 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:36:38,231 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:36:38,231 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:36:38,231 INFO L87 Difference]: Start difference. First operand 147 states and 159 transitions. Second operand 6 states. [2018-02-04 04:36:38,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:36:38,573 INFO L93 Difference]: Finished difference Result 219 states and 233 transitions. [2018-02-04 04:36:38,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:36:38,573 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-02-04 04:36:38,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:36:38,575 INFO L225 Difference]: With dead ends: 219 [2018-02-04 04:36:38,576 INFO L226 Difference]: Without dead ends: 219 [2018-02-04 04:36:38,576 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2018-02-04 04:36:38,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2018-02-04 04:36:38,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 149. [2018-02-04 04:36:38,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-02-04 04:36:38,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 163 transitions. [2018-02-04 04:36:38,584 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 163 transitions. Word has length 13 [2018-02-04 04:36:38,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:36:38,584 INFO L432 AbstractCegarLoop]: Abstraction has 149 states and 163 transitions. [2018-02-04 04:36:38,584 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:36:38,585 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 163 transitions. [2018-02-04 04:36:38,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 04:36:38,585 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:36:38,585 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:36:38,585 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr58EnsuresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:36:38,585 INFO L82 PathProgramCache]: Analyzing trace with hash 537460284, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:36:38,588 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:36:38,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:38,598 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:36:38,600 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:36:38,600 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:36:38,600 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:36:38,601 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:36:38,608 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:36:38,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:38,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:38,640 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:36:38,640 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:36:38,640 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:36:38,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:38,641 INFO L182 omatonBuilderFactory]: Interpolants [1155#true, 1156#false, 1160#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 1161#(and (= 0 |main_#t~malloc1.offset|) (= 8 (select |#length| |main_#t~malloc1.base|))), 1162#(and (<= 0 main_~item~0.offset) (<= (+ main_~item~0.offset 4) (select |#length| main_~item~0.base))), 1163#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:36:38,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:38,641 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:36:38,641 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:36:38,641 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:36:38,641 INFO L87 Difference]: Start difference. First operand 149 states and 163 transitions. Second operand 6 states. [2018-02-04 04:36:38,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:36:38,871 INFO L93 Difference]: Finished difference Result 148 states and 161 transitions. [2018-02-04 04:36:38,871 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:36:38,871 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-02-04 04:36:38,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:36:38,872 INFO L225 Difference]: With dead ends: 148 [2018-02-04 04:36:38,872 INFO L226 Difference]: Without dead ends: 148 [2018-02-04 04:36:38,872 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=25, Unknown=5, NotChecked=10, Total=56 [2018-02-04 04:36:38,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2018-02-04 04:36:38,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2018-02-04 04:36:38,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2018-02-04 04:36:38,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 161 transitions. [2018-02-04 04:36:38,878 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 161 transitions. Word has length 13 [2018-02-04 04:36:38,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:36:38,878 INFO L432 AbstractCegarLoop]: Abstraction has 148 states and 161 transitions. [2018-02-04 04:36:38,879 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:36:38,879 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 161 transitions. [2018-02-04 04:36:38,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:36:38,879 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:36:38,879 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:36:38,879 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr58EnsuresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:36:38,879 INFO L82 PathProgramCache]: Analyzing trace with hash 1103256221, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:36:38,884 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:36:38,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:38,896 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:36:38,898 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:36:38,899 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:36:38,899 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:36:38,899 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:36:38,902 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:36:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:38,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:38,944 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:36:38,944 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:36:38,944 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:36:38,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:38,945 INFO L182 omatonBuilderFactory]: Interpolants [1472#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1464#true, 1465#false, 1469#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 1470#(and (= 0 |main_#t~malloc1.offset|) (= 8 (select |#length| |main_#t~malloc1.base|))), 1471#(and (<= 0 (+ main_~item~0.offset 4)) (<= (+ main_~item~0.offset 8) (select |#length| main_~item~0.base)))] [2018-02-04 04:36:38,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:38,945 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:36:38,945 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:36:38,945 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:36:38,945 INFO L87 Difference]: Start difference. First operand 148 states and 161 transitions. Second operand 6 states. [2018-02-04 04:36:39,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:36:39,199 INFO L93 Difference]: Finished difference Result 177 states and 189 transitions. [2018-02-04 04:36:39,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:36:39,199 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-02-04 04:36:39,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:36:39,200 INFO L225 Difference]: With dead ends: 177 [2018-02-04 04:36:39,200 INFO L226 Difference]: Without dead ends: 177 [2018-02-04 04:36:39,200 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=27, Unknown=3, NotChecked=10, Total=56 [2018-02-04 04:36:39,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2018-02-04 04:36:39,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 147. [2018-02-04 04:36:39,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 147 states. [2018-02-04 04:36:39,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 158 transitions. [2018-02-04 04:36:39,204 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 158 transitions. Word has length 15 [2018-02-04 04:36:39,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:36:39,204 INFO L432 AbstractCegarLoop]: Abstraction has 147 states and 158 transitions. [2018-02-04 04:36:39,204 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:36:39,204 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 158 transitions. [2018-02-04 04:36:39,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:36:39,204 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:36:39,204 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:36:39,204 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr58EnsuresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:36:39,205 INFO L82 PathProgramCache]: Analyzing trace with hash 632206755, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:36:39,208 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:36:39,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:39,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:39,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:39,250 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:36:39,250 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:36:39,250 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:36:39,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:39,251 INFO L182 omatonBuilderFactory]: Interpolants [1808#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1801#true, 1802#false, 1806#(= 1 (select |#valid| |main_#t~malloc5.base|)), 1807#(= 1 (select |#valid| main_~lItem~0.base))] [2018-02-04 04:36:39,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:39,251 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:36:39,251 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:36:39,251 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:36:39,251 INFO L87 Difference]: Start difference. First operand 147 states and 158 transitions. Second operand 5 states. [2018-02-04 04:36:39,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:36:39,387 INFO L93 Difference]: Finished difference Result 181 states and 192 transitions. [2018-02-04 04:36:39,387 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:36:39,387 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-02-04 04:36:39,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:36:39,388 INFO L225 Difference]: With dead ends: 181 [2018-02-04 04:36:39,388 INFO L226 Difference]: Without dead ends: 181 [2018-02-04 04:36:39,388 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:36:39,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2018-02-04 04:36:39,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 143. [2018-02-04 04:36:39,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-02-04 04:36:39,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 154 transitions. [2018-02-04 04:36:39,393 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 154 transitions. Word has length 20 [2018-02-04 04:36:39,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:36:39,393 INFO L432 AbstractCegarLoop]: Abstraction has 143 states and 154 transitions. [2018-02-04 04:36:39,393 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:36:39,393 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 154 transitions. [2018-02-04 04:36:39,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:36:39,394 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:36:39,394 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:36:39,394 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr58EnsuresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:36:39,394 INFO L82 PathProgramCache]: Analyzing trace with hash 632206756, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:36:39,396 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:36:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:39,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:39,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:39,437 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:36:39,437 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:36:39,438 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:36:39,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:39,438 INFO L182 omatonBuilderFactory]: Interpolants [2135#true, 2136#false, 2140#(and (= 0 |main_#t~malloc5.offset|) (= 8 (select |#length| |main_#t~malloc5.base|))), 2141#(and (<= 0 main_~lItem~0.offset) (<= (+ main_~lItem~0.offset 4) (select |#length| main_~lItem~0.base))), 2142#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:36:39,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:39,438 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:36:39,438 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:36:39,438 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:36:39,439 INFO L87 Difference]: Start difference. First operand 143 states and 154 transitions. Second operand 5 states. [2018-02-04 04:36:39,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:36:39,627 INFO L93 Difference]: Finished difference Result 180 states and 192 transitions. [2018-02-04 04:36:39,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:36:39,627 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-02-04 04:36:39,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:36:39,628 INFO L225 Difference]: With dead ends: 180 [2018-02-04 04:36:39,628 INFO L226 Difference]: Without dead ends: 180 [2018-02-04 04:36:39,629 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:36:39,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2018-02-04 04:36:39,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 141. [2018-02-04 04:36:39,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141 states. [2018-02-04 04:36:39,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 152 transitions. [2018-02-04 04:36:39,632 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 152 transitions. Word has length 20 [2018-02-04 04:36:39,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:36:39,633 INFO L432 AbstractCegarLoop]: Abstraction has 141 states and 152 transitions. [2018-02-04 04:36:39,633 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:36:39,633 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 152 transitions. [2018-02-04 04:36:39,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-02-04 04:36:39,633 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:36:39,633 INFO L351 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] [2018-02-04 04:36:39,635 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr58EnsuresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:36:39,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1960303398, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:36:39,640 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:36:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:39,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:39,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:39,680 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:36:39,680 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:36:39,680 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:36:39,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:39,681 INFO L182 omatonBuilderFactory]: Interpolants [2466#true, 2467#false, 2471#(and (= 0 |main_#t~malloc5.offset|) (= 8 (select |#length| |main_#t~malloc5.base|))), 2472#(and (<= 0 (+ main_~lItem~0.offset 4)) (<= (+ main_~lItem~0.offset 8) (select |#length| main_~lItem~0.base))), 2473#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:36:39,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:39,681 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:36:39,681 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:36:39,681 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:36:39,681 INFO L87 Difference]: Start difference. First operand 141 states and 152 transitions. Second operand 5 states. [2018-02-04 04:36:39,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:36:39,837 INFO L93 Difference]: Finished difference Result 140 states and 151 transitions. [2018-02-04 04:36:39,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:36:39,838 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2018-02-04 04:36:39,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:36:39,839 INFO L225 Difference]: With dead ends: 140 [2018-02-04 04:36:39,839 INFO L226 Difference]: Without dead ends: 140 [2018-02-04 04:36:39,839 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:36:39,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2018-02-04 04:36:39,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2018-02-04 04:36:39,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-02-04 04:36:39,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 151 transitions. [2018-02-04 04:36:39,842 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 151 transitions. Word has length 22 [2018-02-04 04:36:39,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:36:39,842 INFO L432 AbstractCegarLoop]: Abstraction has 140 states and 151 transitions. [2018-02-04 04:36:39,842 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:36:39,843 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 151 transitions. [2018-02-04 04:36:39,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-04 04:36:39,843 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:36:39,843 INFO L351 BasicCegarLoop]: trace histogram [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] [2018-02-04 04:36:39,843 INFO L371 AbstractCegarLoop]: === Iteration 9 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr58EnsuresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:36:39,844 INFO L82 PathProgramCache]: Analyzing trace with hash -145487102, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:36:39,846 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:36:39,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:39,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:39,878 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:39,907 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:36:39,907 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:36:39,908 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:36:39,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:39,908 INFO L182 omatonBuilderFactory]: Interpolants [2756#true, 2757#false, 2761#(not (= 0 |main_#t~malloc5.base|)), 2762#(not (= 0 main_~lItem~0.base)), 2763#(not (= 0 main_~data~0.base)), 2764#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:36:39,908 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:36:39,908 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:36:39,909 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:36:39,909 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:36:39,909 INFO L87 Difference]: Start difference. First operand 140 states and 151 transitions. Second operand 6 states. [2018-02-04 04:36:40,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:36:40,087 INFO L93 Difference]: Finished difference Result 234 states and 252 transitions. [2018-02-04 04:36:40,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:36:40,088 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2018-02-04 04:36:40,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:36:40,089 INFO L225 Difference]: With dead ends: 234 [2018-02-04 04:36:40,089 INFO L226 Difference]: Without dead ends: 234 [2018-02-04 04:36:40,090 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-02-04 04:36:40,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2018-02-04 04:36:40,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 140. [2018-02-04 04:36:40,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2018-02-04 04:36:40,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 149 transitions. [2018-02-04 04:36:40,093 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 149 transitions. Word has length 28 [2018-02-04 04:36:40,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:36:40,093 INFO L432 AbstractCegarLoop]: Abstraction has 140 states and 149 transitions. [2018-02-04 04:36:40,093 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:36:40,093 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 149 transitions. [2018-02-04 04:36:40,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-02-04 04:36:40,094 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:36:40,094 INFO L351 BasicCegarLoop]: trace histogram [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] [2018-02-04 04:36:40,094 INFO L371 AbstractCegarLoop]: === Iteration 10 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr54RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr55RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr57RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr56RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr52RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr58EnsuresViolation, mainErr53RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-04 04:36:40,094 INFO L82 PathProgramCache]: Analyzing trace with hash -215136023, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:36:40,101 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:36:40,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:36:40,139 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 127 column 381: theory not supported by interpolation or bad proof at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:206) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseInterpolants(Executor.java:255) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.readInterpolants(ScriptorWithGetInterpolants.java:136) at de.uni_freiburg.informatik.ultimate.smtsolver.external.ScriptorWithGetInterpolants.getInterpolants(ScriptorWithGetInterpolants.java:64) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.arrays.DiffWrapperScript.getInterpolants(DiffWrapperScript.java:260) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:186) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:283) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:164) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:294) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:196) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructCraig(TraceCheckConstructor.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedTraceAbstractionRefinementStrategy.getTraceCheck(FixedTraceAbstractionRefinementStrategy.java:131) 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:397) 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) [2018-02-04 04:36:40,142 INFO L168 Benchmark]: Toolchain (without parser) took 3418.45 ms. Allocated memory was 396.4 MB in the beginning and 660.6 MB in the end (delta: 264.2 MB). Free memory was 353.0 MB in the beginning and 525.1 MB in the end (delta: -172.1 MB). Peak memory consumption was 92.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:36:40,143 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 396.4 MB. Free memory is still 359.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:36:40,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 174.19 ms. Allocated memory is still 396.4 MB. Free memory was 353.0 MB in the beginning and 342.5 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:36:40,144 INFO L168 Benchmark]: Boogie Preprocessor took 30.71 ms. Allocated memory is still 396.4 MB. Free memory was 342.5 MB in the beginning and 339.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:36:40,144 INFO L168 Benchmark]: RCFGBuilder took 374.93 ms. Allocated memory is still 396.4 MB. Free memory was 339.8 MB in the beginning and 302.7 MB in the end (delta: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 5.3 GB. [2018-02-04 04:36:40,144 INFO L168 Benchmark]: TraceAbstraction took 2835.79 ms. Allocated memory was 396.4 MB in the beginning and 660.6 MB in the end (delta: 264.2 MB). Free memory was 301.3 MB in the beginning and 525.1 MB in the end (delta: -223.8 MB). Peak memory consumption was 40.5 MB. Max. memory is 5.3 GB. [2018-02-04 04:36:40,150 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 396.4 MB. Free memory is still 359.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 174.19 ms. Allocated memory is still 396.4 MB. Free memory was 353.0 MB in the beginning and 342.5 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 30.71 ms. Allocated memory is still 396.4 MB. Free memory was 342.5 MB in the beginning and 339.8 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 374.93 ms. Allocated memory is still 396.4 MB. Free memory was 339.8 MB in the beginning and 302.7 MB in the end (delta: 37.2 MB). Peak memory consumption was 37.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2835.79 ms. Allocated memory was 396.4 MB in the beginning and 660.6 MB in the end (delta: 264.2 MB). Free memory was 301.3 MB in the beginning and 525.1 MB in the end (delta: -223.8 MB). Peak memory consumption was 40.5 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 127 column 381: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 127 column 381: theory not supported by interpolation or bad proof: de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1420) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/test-0513_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-36-40-164.csv Received shutdown request...