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/array-memsafety/cstrpbrk_unsafe_false-valid-deref.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:22:55,598 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:22:55,600 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:22:55,612 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:22:55,613 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:22:55,613 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:22:55,614 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:22:55,615 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:22:55,616 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:22:55,617 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:22:55,617 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:22:55,617 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:22:55,618 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:22:55,618 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:22:55,619 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:22:55,620 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:22:55,621 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:22:55,622 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:22:55,623 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:22:55,623 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:22:55,625 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:22:55,631 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:22:55,632 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:22:55,632 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 04:22:55,639 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:22:55,639 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:22:55,640 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:22:55,640 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:22:55,640 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:22:55,641 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:22:55,641 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:22:55,641 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:22:55,641 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:22:55,641 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:22:55,641 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:22:55,641 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:22:55,642 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:22:55,642 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:22:55,642 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:22:55,642 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:22:55,642 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:22:55,642 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:22:55,643 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:22:55,643 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:22:55,643 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:22:55,643 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:22:55,643 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:22:55,643 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:22:55,643 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:22:55,670 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:22:55,680 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:22:55,684 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:22:55,685 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:22:55,685 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:22:55,686 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/cstrpbrk_unsafe_false-valid-deref.i [2018-02-04 04:22:55,812 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:22:55,813 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:22:55,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:22:55,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:22:55,819 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:22:55,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:22:55" (1/1) ... [2018-02-04 04:22:55,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13c55627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:22:55, skipping insertion in model container [2018-02-04 04:22:55,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:22:55" (1/1) ... [2018-02-04 04:22:55,837 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:22:55,867 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:22:55,957 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:22:55,970 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:22:55,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:22:55 WrapperNode [2018-02-04 04:22:55,975 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:22:55,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:22:55,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:22:55,976 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:22:55,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:22:55" (1/1) ... [2018-02-04 04:22:55,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:22:55" (1/1) ... [2018-02-04 04:22:56,000 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:22:55" (1/1) ... [2018-02-04 04:22:56,000 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:22:55" (1/1) ... [2018-02-04 04:22:56,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:22:55" (1/1) ... [2018-02-04 04:22:56,005 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:22:55" (1/1) ... [2018-02-04 04:22:56,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:22:55" (1/1) ... [2018-02-04 04:22:56,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:22:56,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:22:56,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:22:56,008 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:22:56,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:22:55" (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 04:22:56,045 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:22:56,045 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:22:56,045 INFO L136 BoogieDeclarations]: Found implementation of procedure build_nondet_String [2018-02-04 04:22:56,046 INFO L136 BoogieDeclarations]: Found implementation of procedure cstrpbrk [2018-02-04 04:22:56,046 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:22:56,046 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:22:56,046 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:22:56,046 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:22:56,046 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:22:56,046 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:22:56,047 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 04:22:56,047 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-04 04:22:56,047 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:22:56,047 INFO L128 BoogieDeclarations]: Found specification of procedure build_nondet_String [2018-02-04 04:22:56,047 INFO L128 BoogieDeclarations]: Found specification of procedure cstrpbrk [2018-02-04 04:22:56,047 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:22:56,047 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:22:56,047 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:22:56,236 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:22:56,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:22:56 BoogieIcfgContainer [2018-02-04 04:22:56,236 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:22:56,237 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:22:56,237 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:22:56,238 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:22:56,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:22:55" (1/3) ... [2018-02-04 04:22:56,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19159100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:22:56, skipping insertion in model container [2018-02-04 04:22:56,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:22:55" (2/3) ... [2018-02-04 04:22:56,239 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19159100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:22:56, skipping insertion in model container [2018-02-04 04:22:56,239 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:22:56" (3/3) ... [2018-02-04 04:22:56,241 INFO L107 eAbstractionObserver]: Analyzing ICFG cstrpbrk_unsafe_false-valid-deref.i [2018-02-04 04:22:56,246 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:22:56,250 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2018-02-04 04:22:56,283 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:22:56,283 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:22:56,283 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:22:56,283 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:22:56,284 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:22:56,284 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:22:56,284 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:22:56,284 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:22:56,285 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:22:56,297 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states. [2018-02-04 04:22:56,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-02-04 04:22:56,305 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:22:56,306 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:22:56,306 INFO L371 AbstractCegarLoop]: === Iteration 1 === [build_nondet_StringErr0RequiresViolation, build_nondet_StringErr1RequiresViolation, cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr9RequiresViolation, cstrpbrkErr7RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr8RequiresViolation, cstrpbrkErr4RequiresViolation, cstrpbrkErr0RequiresViolation, cstrpbrkErr6RequiresViolation, cstrpbrkErr5RequiresViolation, mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:22:56,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1167838739, 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 04:22:56,321 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:22:56,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:22:56,351 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:22:56,362 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:56,362 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:56,363 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:56,363 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:56,396 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 04:22:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:22:56,450 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 04:22:56,481 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:22:56,481 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:22:56,482 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:22:56,482 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 04:22:56,483 INFO L182 omatonBuilderFactory]: Interpolants [68#true, 69#false, 73#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 74#(= 1 (select |#valid| |build_nondet_String_#t~malloc1.base|)), 75#(= 1 (select |#valid| build_nondet_String_~nondetString~0.base)), 76#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:22:56,483 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 04:22:56,484 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:22:56,493 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:22:56,493 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:22:56,494 INFO L87 Difference]: Start difference. First operand 65 states. Second operand 6 states. [2018-02-04 04:22:56,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:22:56,784 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2018-02-04 04:22:56,784 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:22:56,786 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-02-04 04:22:56,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:22:56,796 INFO L225 Difference]: With dead ends: 74 [2018-02-04 04:22:56,796 INFO L226 Difference]: Without dead ends: 71 [2018-02-04 04:22:56,800 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 04:22:56,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-02-04 04:22:56,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2018-02-04 04:22:56,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-02-04 04:22:56,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 77 transitions. [2018-02-04 04:22:56,902 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 77 transitions. Word has length 11 [2018-02-04 04:22:56,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:22:56,902 INFO L432 AbstractCegarLoop]: Abstraction has 70 states and 77 transitions. [2018-02-04 04:22:56,902 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:22:56,902 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 77 transitions. [2018-02-04 04:22:56,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-02-04 04:22:56,903 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:22:56,903 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:22:56,903 INFO L371 AbstractCegarLoop]: === Iteration 2 === [build_nondet_StringErr0RequiresViolation, build_nondet_StringErr1RequiresViolation, cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr9RequiresViolation, cstrpbrkErr7RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr8RequiresViolation, cstrpbrkErr4RequiresViolation, cstrpbrkErr0RequiresViolation, cstrpbrkErr6RequiresViolation, cstrpbrkErr5RequiresViolation, mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:22:56,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1167838738, 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 04:22:56,907 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:22:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:22:56,916 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier WARNING: array quantifier [2018-02-04 04:22:56,917 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:56,918 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:56,918 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:56,918 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:56,927 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 1) (store |c_#length| %1 1)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:22:56,928 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:56,928 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:56,929 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:56,929 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:56,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:22:56,980 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 04:22:56,999 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:22:56,999 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:22:56,999 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:22:57,000 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 04:22:57,000 INFO L182 omatonBuilderFactory]: Interpolants [225#true, 226#false, 230#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 1) (store |#length| %1 1)) :qid itp)) :qid itp)), 231#(exists ((%0 (Array Int Int))) (! (and (forall ((%1 Int)) (! (= (store %0 %1 1) (store |#length| %1 1)) :qid itp)) (= build_nondet_String_~length~0 1)) :qid itp)), 232#(and (= 1 (select |#length| |build_nondet_String_#t~malloc1.base|)) (= 0 |build_nondet_String_#t~malloc1.offset|) (= 1 build_nondet_String_~length~0)), 233#(and (<= (+ build_nondet_String_~nondetString~0.offset build_nondet_String_~length~0) (select |#length| build_nondet_String_~nondetString~0.base)) (<= 1 (+ build_nondet_String_~nondetString~0.offset build_nondet_String_~length~0))), 234#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:22:57,000 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 04:22:57,001 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:22:57,002 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:22:57,002 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=20, Unknown=3, NotChecked=8, Total=42 [2018-02-04 04:22:57,002 INFO L87 Difference]: Start difference. First operand 70 states and 77 transitions. Second operand 7 states. [2018-02-04 04:22:57,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:22:57,219 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2018-02-04 04:22:57,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:22:57,220 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2018-02-04 04:22:57,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:22:57,221 INFO L225 Difference]: With dead ends: 70 [2018-02-04 04:22:57,221 INFO L226 Difference]: Without dead ends: 70 [2018-02-04 04:22:57,222 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=48, Unknown=6, NotChecked=14, Total=90 [2018-02-04 04:22:57,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-02-04 04:22:57,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2018-02-04 04:22:57,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-02-04 04:22:57,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 76 transitions. [2018-02-04 04:22:57,231 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 76 transitions. Word has length 11 [2018-02-04 04:22:57,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:22:57,232 INFO L432 AbstractCegarLoop]: Abstraction has 70 states and 76 transitions. [2018-02-04 04:22:57,232 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:22:57,232 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 76 transitions. [2018-02-04 04:22:57,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-02-04 04:22:57,232 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:22:57,232 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:22:57,233 INFO L371 AbstractCegarLoop]: === Iteration 3 === [build_nondet_StringErr0RequiresViolation, build_nondet_StringErr1RequiresViolation, cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr9RequiresViolation, cstrpbrkErr7RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr8RequiresViolation, cstrpbrkErr4RequiresViolation, cstrpbrkErr0RequiresViolation, cstrpbrkErr6RequiresViolation, cstrpbrkErr5RequiresViolation, mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:22:57,233 INFO L82 PathProgramCache]: Analyzing trace with hash -1167779157, 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 04:22:57,236 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:22:57,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:22:57,245 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:22:57,247 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:57,247 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:57,248 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:57,248 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:22:57,269 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 04:22:57,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:22:57,285 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 04:22:57,304 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:22:57,304 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:22:57,304 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:22:57,305 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 04:22:57,305 INFO L182 omatonBuilderFactory]: Interpolants [386#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 387#(= 1 (select |#valid| |build_nondet_String_#t~malloc1.base|)), 388#(= 1 (select |#valid| build_nondet_String_~nondetString~0.base)), 389#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 381#true, 382#false] [2018-02-04 04:22:57,305 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 04:22:57,305 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:22:57,305 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:22:57,306 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:22:57,306 INFO L87 Difference]: Start difference. First operand 70 states and 76 transitions. Second operand 6 states. [2018-02-04 04:22:57,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:22:57,407 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2018-02-04 04:22:57,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:22:57,408 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-02-04 04:22:57,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:22:57,408 INFO L225 Difference]: With dead ends: 70 [2018-02-04 04:22:57,409 INFO L226 Difference]: Without dead ends: 70 [2018-02-04 04:22:57,409 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 04:22:57,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2018-02-04 04:22:57,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2018-02-04 04:22:57,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-02-04 04:22:57,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2018-02-04 04:22:57,413 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 11 [2018-02-04 04:22:57,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:22:57,413 INFO L432 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2018-02-04 04:22:57,413 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:22:57,413 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2018-02-04 04:22:57,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-02-04 04:22:57,413 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:22:57,413 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:22:57,413 INFO L371 AbstractCegarLoop]: === Iteration 4 === [build_nondet_StringErr0RequiresViolation, build_nondet_StringErr1RequiresViolation, cstrpbrkErr3RequiresViolation, cstrpbrkErr1RequiresViolation, cstrpbrkErr9RequiresViolation, cstrpbrkErr7RequiresViolation, cstrpbrkErr2RequiresViolation, cstrpbrkErr8RequiresViolation, cstrpbrkErr4RequiresViolation, cstrpbrkErr0RequiresViolation, cstrpbrkErr6RequiresViolation, cstrpbrkErr5RequiresViolation, mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6EnsuresViolation, mainErr0RequiresViolation]=== [2018-02-04 04:22:57,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1167779156, 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 04:22:57,416 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:22:57,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:22:57,441 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier Unsupported proof rule: (let ((a!1 (= (+ |build_nondet_String_#t~nondet0_5| 0 (* (- 1) (select |#length_8| |build_nondet_String_#t~malloc1.base_8|))) (+ |build_nondet_String_#t~nondet0_5| (* (- 1) (select |#length_8| |build_nondet_String_#t~malloc1.base_8|)))))) (rewrite a!1)) [2018-02-04 04:22:57,441 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 75 column 322: 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 04:22:57,444 INFO L168 Benchmark]: Toolchain (without parser) took 1631.52 ms. Allocated memory was 399.5 MB in the beginning and 605.6 MB in the end (delta: 206.0 MB). Free memory was 356.4 MB in the beginning and 488.4 MB in the end (delta: -132.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 5.3 GB. [2018-02-04 04:22:57,445 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 399.5 MB. Free memory is still 363.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:22:57,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 161.70 ms. Allocated memory is still 399.5 MB. Free memory was 356.4 MB in the beginning and 345.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:22:57,446 INFO L168 Benchmark]: Boogie Preprocessor took 31.77 ms. Allocated memory is still 399.5 MB. Free memory was 345.7 MB in the beginning and 344.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:22:57,446 INFO L168 Benchmark]: RCFGBuilder took 228.29 ms. Allocated memory is still 399.5 MB. Free memory was 344.4 MB in the beginning and 322.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 5.3 GB. [2018-02-04 04:22:57,446 INFO L168 Benchmark]: TraceAbstraction took 1207.04 ms. Allocated memory was 399.5 MB in the beginning and 605.6 MB in the end (delta: 206.0 MB). Free memory was 322.4 MB in the beginning and 488.4 MB in the end (delta: -166.0 MB). Peak memory consumption was 40.1 MB. Max. memory is 5.3 GB. [2018-02-04 04:22:57,448 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 399.5 MB. Free memory is still 363.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 161.70 ms. Allocated memory is still 399.5 MB. Free memory was 356.4 MB in the beginning and 345.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 31.77 ms. Allocated memory is still 399.5 MB. Free memory was 345.7 MB in the beginning and 344.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 228.29 ms. Allocated memory is still 399.5 MB. Free memory was 344.4 MB in the beginning and 322.4 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1207.04 ms. Allocated memory was 399.5 MB in the beginning and 605.6 MB in the end (delta: 206.0 MB). Free memory was 322.4 MB in the beginning and 488.4 MB in the end (delta: -166.0 MB). Peak memory consumption was 40.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 75 column 322: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 75 column 322: 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/cstrpbrk_unsafe_false-valid-deref.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-22-57-454.csv Received shutdown request...