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/list-ext-properties/960521-1_1_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:40:39,203 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:40:39,204 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:40:39,215 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:40:39,216 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:40:39,216 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:40:39,217 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:40:39,218 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:40:39,219 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:40:39,220 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:40:39,221 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:40:39,221 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:40:39,222 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:40:39,223 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:40:39,224 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:40:39,226 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:40:39,227 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:40:39,229 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:40:39,230 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:40:39,231 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:40:39,233 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:40:39,233 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:40:39,233 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:40:39,234 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:40:39,235 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:40:39,236 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:40:39,236 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:40:39,237 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:40:39,237 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:40:39,237 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:40:39,237 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:40:39,238 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 04:40:39,248 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:40:39,248 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:40:39,249 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:40:39,249 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:40:39,249 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:40:39,249 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:40:39,249 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:40:39,250 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:40:39,250 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:40:39,250 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:40:39,250 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:40:39,250 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:40:39,250 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:40:39,250 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:40:39,251 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:40:39,251 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:40:39,251 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:40:39,251 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:40:39,251 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:40:39,251 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:40:39,252 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:40:39,252 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:40:39,252 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:40:39,252 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:40:39,252 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:40:39,281 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:40:39,291 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:40:39,295 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:40:39,296 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:40:39,297 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:40:39,297 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-ext-properties/960521-1_1_false-valid-deref.i [2018-02-04 04:40:39,426 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:40:39,428 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:40:39,429 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:40:39,429 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:40:39,435 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:40:39,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:40:39" (1/1) ... [2018-02-04 04:40:39,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa21b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:39, skipping insertion in model container [2018-02-04 04:40:39,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:40:39" (1/1) ... [2018-02-04 04:40:39,455 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:40:39,484 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:40:39,580 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:40:39,592 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:40:39,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:39 WrapperNode [2018-02-04 04:40:39,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:40:39,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:40:39,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:40:39,597 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:40:39,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:39" (1/1) ... [2018-02-04 04:40:39,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:39" (1/1) ... [2018-02-04 04:40:39,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:39" (1/1) ... [2018-02-04 04:40:39,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:39" (1/1) ... [2018-02-04 04:40:39,617 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:39" (1/1) ... [2018-02-04 04:40:39,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:39" (1/1) ... [2018-02-04 04:40:39,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:39" (1/1) ... [2018-02-04 04:40:39,622 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:40:39,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:40:39,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:40:39,623 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:40:39,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:39" (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 04:40:39,663 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:40:39,663 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:40:39,663 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-02-04 04:40:39,663 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:40:39,663 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:40:39,664 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:40:39,664 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:40:39,664 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:40:39,664 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:40:39,664 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:40:39,664 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:40:39,664 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:40:39,664 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-02-04 04:40:39,664 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:40:39,664 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:40:39,664 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:40:39,833 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:40:39,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:40:39 BoogieIcfgContainer [2018-02-04 04:40:39,834 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:40:39,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:40:39,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:40:39,837 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:40:39,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:40:39" (1/3) ... [2018-02-04 04:40:39,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42568675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:40:39, skipping insertion in model container [2018-02-04 04:40:39,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:40:39" (2/3) ... [2018-02-04 04:40:39,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42568675 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:40:39, skipping insertion in model container [2018-02-04 04:40:39,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:40:39" (3/3) ... [2018-02-04 04:40:39,840 INFO L107 eAbstractionObserver]: Analyzing ICFG 960521-1_1_false-valid-deref.i [2018-02-04 04:40:39,848 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:40:39,853 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 17 error locations. [2018-02-04 04:40:39,887 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:40:39,887 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:40:39,888 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:40:39,888 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:40:39,888 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:40:39,888 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:40:39,888 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:40:39,888 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:40:39,889 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:40:39,897 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states. [2018-02-04 04:40:39,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-04 04:40:39,907 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:40:39,908 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:40:39,909 INFO L371 AbstractCegarLoop]: === Iteration 1 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12EnsuresViolation]=== [2018-02-04 04:40:39,913 INFO L82 PathProgramCache]: Analyzing trace with hash -1352732268, 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 04:40:39,928 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:40:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:40,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:40,025 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 04:40:40,058 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:40:40,059 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:40:40,061 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:40:40,061 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 04:40:40,061 INFO L182 omatonBuilderFactory]: Interpolants [64#(and (= ~a.offset |old(~a.offset)|) (= ~a.base |old(~a.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~n |old(~n)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~b.base |old(~b.base)|) (= ~b.offset |old(~b.offset)|)), 59#true, 60#false] [2018-02-04 04:40:40,062 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 04:40:40,063 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:40:40,077 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:40:40,078 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:40:40,080 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 3 states. [2018-02-04 04:40:40,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:40:40,217 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2018-02-04 04:40:40,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:40:40,219 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2018-02-04 04:40:40,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:40:40,228 INFO L225 Difference]: With dead ends: 56 [2018-02-04 04:40:40,228 INFO L226 Difference]: Without dead ends: 53 [2018-02-04 04:40:40,230 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 04:40:40,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-02-04 04:40:40,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2018-02-04 04:40:40,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-02-04 04:40:40,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 56 transitions. [2018-02-04 04:40:40,263 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 56 transitions. Word has length 12 [2018-02-04 04:40:40,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:40:40,264 INFO L432 AbstractCegarLoop]: Abstraction has 53 states and 56 transitions. [2018-02-04 04:40:40,264 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:40:40,264 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 56 transitions. [2018-02-04 04:40:40,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:40:40,265 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:40:40,265 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:40:40,265 INFO L371 AbstractCegarLoop]: === Iteration 2 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12EnsuresViolation]=== [2018-02-04 04:40:40,265 INFO L82 PathProgramCache]: Analyzing trace with hash -1000920166, 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 04:40:40,270 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:40:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:40,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:40,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:40:40,367 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:40:40,367 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:40:40,367 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:40:40,367 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 04:40:40,368 INFO L182 omatonBuilderFactory]: Interpolants [179#(= 1 (select |#valid| |main_#t~malloc7.base|)), 180#(= 1 (select |#valid| |main_#t~post8.base|)), 181#(and (= ~a.offset |old(~a.offset)|) (= ~a.base |old(~a.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~n |old(~n)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~b.base |old(~b.base)|) (= ~b.offset |old(~b.offset)|)), 174#true, 175#false] [2018-02-04 04:40:40,368 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 04:40:40,370 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:40:40,370 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:40:40,370 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:40:40,370 INFO L87 Difference]: Start difference. First operand 53 states and 56 transitions. Second operand 5 states. [2018-02-04 04:40:40,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:40:40,521 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-02-04 04:40:40,522 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:40:40,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2018-02-04 04:40:40,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:40:40,523 INFO L225 Difference]: With dead ends: 52 [2018-02-04 04:40:40,523 INFO L226 Difference]: Without dead ends: 52 [2018-02-04 04:40:40,524 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 04:40:40,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-02-04 04:40:40,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2018-02-04 04:40:40,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-02-04 04:40:40,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 55 transitions. [2018-02-04 04:40:40,528 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 55 transitions. Word has length 14 [2018-02-04 04:40:40,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:40:40,529 INFO L432 AbstractCegarLoop]: Abstraction has 52 states and 55 transitions. [2018-02-04 04:40:40,529 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:40:40,529 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 55 transitions. [2018-02-04 04:40:40,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:40:40,530 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:40:40,530 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:40:40,530 INFO L371 AbstractCegarLoop]: === Iteration 3 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12EnsuresViolation]=== [2018-02-04 04:40:40,530 INFO L82 PathProgramCache]: Analyzing trace with hash -1000920165, 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 04:40:40,536 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:40:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:40,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:40,621 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 04:40:40,649 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:40:40,650 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:40:40,650 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:40:40,650 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 04:40:40,651 INFO L182 omatonBuilderFactory]: Interpolants [288#true, 289#false, 293#(= ~n 1), 294#(and (= 0 |main_#t~malloc7.offset|) (= 4 (select |#length| |main_#t~malloc7.base|))), 295#(and (<= 0 |main_#t~post8.offset|) (<= (+ |main_#t~post8.offset| 4) (select |#length| |main_#t~post8.base|))), 296#(and (= ~a.offset |old(~a.offset)|) (= ~a.base |old(~a.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~n |old(~n)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~b.base |old(~b.base)|) (= ~b.offset |old(~b.offset)|))] [2018-02-04 04:40:40,651 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 04:40:40,651 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:40:40,651 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:40:40,651 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:40:40,652 INFO L87 Difference]: Start difference. First operand 52 states and 55 transitions. Second operand 6 states. [2018-02-04 04:40:40,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:40:40,888 INFO L93 Difference]: Finished difference Result 97 states and 103 transitions. [2018-02-04 04:40:40,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:40:40,889 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-02-04 04:40:40,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:40:40,890 INFO L225 Difference]: With dead ends: 97 [2018-02-04 04:40:40,890 INFO L226 Difference]: Without dead ends: 97 [2018-02-04 04:40:40,891 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-02-04 04:40:40,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2018-02-04 04:40:40,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 60. [2018-02-04 04:40:40,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-02-04 04:40:40,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 64 transitions. [2018-02-04 04:40:40,959 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 64 transitions. Word has length 14 [2018-02-04 04:40:40,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:40:40,959 INFO L432 AbstractCegarLoop]: Abstraction has 60 states and 64 transitions. [2018-02-04 04:40:40,959 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:40:40,959 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 64 transitions. [2018-02-04 04:40:40,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-02-04 04:40:40,960 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:40:40,960 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:40:40,960 INFO L371 AbstractCegarLoop]: === Iteration 4 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12EnsuresViolation]=== [2018-02-04 04:40:40,960 INFO L82 PathProgramCache]: Analyzing trace with hash -282681840, 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 04:40:40,964 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:40:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:41,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:40:41,050 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 04:40:41,050 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-02-04 04:40:41,050 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:40:41,050 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 04:40:41,051 INFO L182 omatonBuilderFactory]: Interpolants [465#(= ~n 1), 466#(= ~n 2), 467#(and (= 0 |main_#t~malloc7.offset|) (= 8 (select |#length| |main_#t~malloc7.base|))), 468#(and (<= 0 |main_#t~post8.offset|) (<= (+ |main_#t~post8.offset| 4) (select |#length| |main_#t~post8.base|))), 469#(and (= ~a.offset |old(~a.offset)|) (= ~a.base |old(~a.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~n |old(~n)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~b.base |old(~b.base)|) (= ~b.offset |old(~b.offset)|)), 460#true, 461#false] [2018-02-04 04:40:41,051 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:40:41,051 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:40:41,051 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:40:41,051 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:40:41,052 INFO L87 Difference]: Start difference. First operand 60 states and 64 transitions. Second operand 7 states. [2018-02-04 04:40:41,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:40:41,331 INFO L93 Difference]: Finished difference Result 142 states and 151 transitions. [2018-02-04 04:40:41,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 04:40:41,332 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2018-02-04 04:40:41,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:40:41,333 INFO L225 Difference]: With dead ends: 142 [2018-02-04 04:40:41,333 INFO L226 Difference]: Without dead ends: 142 [2018-02-04 04:40:41,333 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-02-04 04:40:41,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2018-02-04 04:40:41,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 63. [2018-02-04 04:40:41,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2018-02-04 04:40:41,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 68 transitions. [2018-02-04 04:40:41,338 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 68 transitions. Word has length 17 [2018-02-04 04:40:41,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:40:41,339 INFO L432 AbstractCegarLoop]: Abstraction has 63 states and 68 transitions. [2018-02-04 04:40:41,339 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:40:41,339 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 68 transitions. [2018-02-04 04:40:41,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:40:41,339 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:40:41,340 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 04:40:41,340 INFO L371 AbstractCegarLoop]: === Iteration 5 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12EnsuresViolation]=== [2018-02-04 04:40:41,340 INFO L82 PathProgramCache]: Analyzing trace with hash -1559748963, 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 04:40:41,342 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:40:41,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:41,353 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:40:41,357 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:41,357 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:41,358 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:41,358 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:40:41,420 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 04:40:41,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:41,473 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 04:40:41,500 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:40:41,500 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-02-04 04:40:41,500 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:40:41,501 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 04:40:41,501 INFO L182 omatonBuilderFactory]: Interpolants [690#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 691#(= 1 (select |#valid| |main_#t~malloc6.base|)), 692#(= 1 (select |#valid| ~a.base)), 693#(or (= (select |#valid| ~a.base) 1) (not (= (select |#valid| |main_#t~malloc7.base|) 1))), 694#(or (= (select |#valid| ~a.base) 1) (not (= (select |#valid| |main_#t~post8.base|) 1))), 695#(and (= ~a.offset |old(~a.offset)|) (= ~a.base |old(~a.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= ~n |old(~n)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~b.base |old(~b.base)|) (= ~b.offset |old(~b.offset)|)), 685#true, 686#false] [2018-02-04 04:40:41,501 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 04:40:41,501 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-02-04 04:40:41,501 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-02-04 04:40:41,501 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=30, Unknown=1, NotChecked=10, Total=56 [2018-02-04 04:40:41,502 INFO L87 Difference]: Start difference. First operand 63 states and 68 transitions. Second operand 8 states. [2018-02-04 04:40:41,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:40:41,638 INFO L93 Difference]: Finished difference Result 61 states and 66 transitions. [2018-02-04 04:40:41,639 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:40:41,639 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 20 [2018-02-04 04:40:41,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:40:41,640 INFO L225 Difference]: With dead ends: 61 [2018-02-04 04:40:41,640 INFO L226 Difference]: Without dead ends: 61 [2018-02-04 04:40:41,640 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=61, Unknown=3, NotChecked=16, Total=110 [2018-02-04 04:40:41,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2018-02-04 04:40:41,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2018-02-04 04:40:41,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2018-02-04 04:40:41,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 65 transitions. [2018-02-04 04:40:41,644 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 65 transitions. Word has length 20 [2018-02-04 04:40:41,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:40:41,644 INFO L432 AbstractCegarLoop]: Abstraction has 60 states and 65 transitions. [2018-02-04 04:40:41,644 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-02-04 04:40:41,644 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 65 transitions. [2018-02-04 04:40:41,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:40:41,645 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:40:41,645 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 04:40:41,645 INFO L371 AbstractCegarLoop]: === Iteration 6 === [fooErr1RequiresViolation, fooErr0RequiresViolation, fooErr2RequiresViolation, fooErr3RequiresViolation, mainErr5RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr0RequiresViolation, mainErr3RequiresViolation, mainErr7RequiresViolation, mainErr11RequiresViolation, mainErr8RequiresViolation, mainErr10RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr12EnsuresViolation]=== [2018-02-04 04:40:41,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1559748962, 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 04:40:41,649 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:40:41,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:40:41,675 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier Unsupported proof rule: (let ((a!1 (= (+ 0 0 (* (- 1) (select |#length_11| |main_#t~malloc6.base_9|))) (* (- 1) (select |#length_11| |main_#t~malloc6.base_9|))))) (rewrite a!1)) [2018-02-04 04:40:41,676 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 127 column 387: 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 04:40:41,678 INFO L168 Benchmark]: Toolchain (without parser) took 2251.16 ms. Allocated memory was 403.2 MB in the beginning and 613.9 MB in the end (delta: 210.8 MB). Free memory was 359.9 MB in the beginning and 477.9 MB in the end (delta: -118.0 MB). Peak memory consumption was 92.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:40:41,679 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 403.2 MB. Free memory is still 366.5 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:40:41,680 INFO L168 Benchmark]: CACSL2BoogieTranslator took 168.07 ms. Allocated memory is still 403.2 MB. Free memory was 359.9 MB in the beginning and 349.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:40:41,680 INFO L168 Benchmark]: Boogie Preprocessor took 25.60 ms. Allocated memory is still 403.2 MB. Free memory was 349.2 MB in the beginning and 347.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:40:41,680 INFO L168 Benchmark]: RCFGBuilder took 211.15 ms. Allocated memory is still 403.2 MB. Free memory was 347.9 MB in the beginning and 328.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:40:41,681 INFO L168 Benchmark]: TraceAbstraction took 1843.06 ms. Allocated memory was 403.2 MB in the beginning and 613.9 MB in the end (delta: 210.8 MB). Free memory was 328.0 MB in the beginning and 477.9 MB in the end (delta: -149.9 MB). Peak memory consumption was 60.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:40:41,683 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 403.2 MB. Free memory is still 366.5 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 168.07 ms. Allocated memory is still 403.2 MB. Free memory was 359.9 MB in the beginning and 349.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 25.60 ms. Allocated memory is still 403.2 MB. Free memory was 349.2 MB in the beginning and 347.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 211.15 ms. Allocated memory is still 403.2 MB. Free memory was 347.9 MB in the beginning and 328.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1843.06 ms. Allocated memory was 403.2 MB in the beginning and 613.9 MB in the end (delta: 210.8 MB). Free memory was 328.0 MB in the beginning and 477.9 MB in the end (delta: -149.9 MB). Peak memory consumption was 60.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 127 column 387: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 127 column 387: 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/960521-1_1_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-40-41-692.csv Received shutdown request...