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/ldv-memsafety/ArraysOfVariableLength_true-valid-memsafety.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:41:48,184 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:41:48,186 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:41:48,198 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:41:48,198 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:41:48,199 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:41:48,200 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:41:48,201 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:41:48,202 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:41:48,203 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:41:48,204 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:41:48,204 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:41:48,205 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:41:48,206 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:41:48,207 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:41:48,208 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:41:48,210 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:41:48,211 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:41:48,212 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:41:48,213 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:41:48,215 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-04 04:41:48,215 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-04 04:41:48,215 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-04 04:41:48,216 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-04 04:41:48,217 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-04 04:41:48,218 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-04 04:41:48,218 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-04 04:41:48,218 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-04 04:41:48,219 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-04 04:41:48,219 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:41:48,219 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:41:48,219 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 04:41:48,229 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:41:48,229 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:41:48,230 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:41:48,230 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:41:48,230 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:41:48,230 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:41:48,231 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:41:48,231 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:41:48,231 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:41:48,231 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:41:48,231 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:41:48,231 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:41:48,231 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:41:48,232 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:41:48,232 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:41:48,232 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:41:48,232 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:41:48,232 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:41:48,232 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:41:48,232 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:41:48,233 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:41:48,233 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:41:48,233 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 04:41:48,233 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 04:41:48,233 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:41:48,261 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:41:48,271 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:41:48,274 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:41:48,275 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:41:48,276 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:41:48,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/ArraysOfVariableLength_true-valid-memsafety.c [2018-02-04 04:41:48,369 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:41:48,370 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:41:48,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:41:48,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:41:48,376 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:41:48,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:41:48" (1/1) ... [2018-02-04 04:41:48,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c52cc3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:48, skipping insertion in model container [2018-02-04 04:41:48,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:41:48" (1/1) ... [2018-02-04 04:41:48,394 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:41:48,407 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:41:48,506 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:41:48,517 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:41:48,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:48 WrapperNode [2018-02-04 04:41:48,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:41:48,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:41:48,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:41:48,521 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:41:48,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:48" (1/1) ... [2018-02-04 04:41:48,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:48" (1/1) ... [2018-02-04 04:41:48,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:48" (1/1) ... [2018-02-04 04:41:48,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:48" (1/1) ... [2018-02-04 04:41:48,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:48" (1/1) ... [2018-02-04 04:41:48,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:48" (1/1) ... [2018-02-04 04:41:48,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:48" (1/1) ... [2018-02-04 04:41:48,541 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:41:48,541 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:41:48,541 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:41:48,541 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:41:48,542 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:48" (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 04:41:48,576 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:41:48,576 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:41:48,576 INFO L136 BoogieDeclarations]: Found implementation of procedure foo [2018-02-04 04:41:48,576 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:41:48,576 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:41:48,577 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:41:48,577 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:41:48,577 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:41:48,577 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:41:48,577 INFO L128 BoogieDeclarations]: Found specification of procedure foo [2018-02-04 04:41:48,577 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:41:48,577 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:41:48,577 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:41:48,719 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:41:48,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:41:48 BoogieIcfgContainer [2018-02-04 04:41:48,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:41:48,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:41:48,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:41:48,722 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:41:48,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:41:48" (1/3) ... [2018-02-04 04:41:48,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9dc1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:41:48, skipping insertion in model container [2018-02-04 04:41:48,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:41:48" (2/3) ... [2018-02-04 04:41:48,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9dc1b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:41:48, skipping insertion in model container [2018-02-04 04:41:48,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:41:48" (3/3) ... [2018-02-04 04:41:48,724 INFO L107 eAbstractionObserver]: Analyzing ICFG ArraysOfVariableLength_true-valid-memsafety.c [2018-02-04 04:41:48,730 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:41:48,734 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-02-04 04:41:48,766 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:41:48,767 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:41:48,767 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 04:41:48,767 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 04:41:48,767 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:41:48,767 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:41:48,767 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:41:48,767 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:41:48,767 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:41:48,775 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2018-02-04 04:41:48,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 04:41:48,782 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:41:48,782 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:41:48,782 INFO L371 AbstractCegarLoop]: === Iteration 1 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 04:41:48,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1202729229, 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 04:41:48,796 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:41:48,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:48,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:48,855 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 04:41:48,875 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:41:48,876 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 04:41:48,876 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:41:48,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:41:48,877 INFO L182 omatonBuilderFactory]: Interpolants [52#true, 53#false, 57#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:41:48,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:41:48,878 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 04:41:48,886 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 04:41:48,886 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 04:41:48,888 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 3 states. [2018-02-04 04:41:48,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:41:48,981 INFO L93 Difference]: Finished difference Result 49 states and 52 transitions. [2018-02-04 04:41:48,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 04:41:48,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2018-02-04 04:41:48,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:41:48,992 INFO L225 Difference]: With dead ends: 49 [2018-02-04 04:41:48,992 INFO L226 Difference]: Without dead ends: 46 [2018-02-04 04:41:48,994 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 04:41:49,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-02-04 04:41:49,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-02-04 04:41:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-02-04 04:41:49,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2018-02-04 04:41:49,028 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 13 [2018-02-04 04:41:49,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:41:49,028 INFO L432 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2018-02-04 04:41:49,028 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 04:41:49,028 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2018-02-04 04:41:49,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:41:49,029 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:41:49,029 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:41:49,029 INFO L371 AbstractCegarLoop]: === Iteration 2 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 04:41:49,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1812590093, 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 04:41:49,034 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:41:49,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:49,068 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 04:41:49,098 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:41:49,098 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:41:49,098 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:41:49,098 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 04:41:49,099 INFO L182 omatonBuilderFactory]: Interpolants [153#true, 154#false, 158#(< main_~i~1 100), 159#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:41:49,099 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 04:41:49,100 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 04:41:49,100 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 04:41:49,101 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:41:49,101 INFO L87 Difference]: Start difference. First operand 46 states and 49 transitions. Second operand 4 states. [2018-02-04 04:41:49,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:41:49,220 INFO L93 Difference]: Finished difference Result 52 states and 54 transitions. [2018-02-04 04:41:49,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-02-04 04:41:49,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-02-04 04:41:49,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:41:49,222 INFO L225 Difference]: With dead ends: 52 [2018-02-04 04:41:49,222 INFO L226 Difference]: Without dead ends: 52 [2018-02-04 04:41:49,223 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 04:41:49,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-02-04 04:41:49,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2018-02-04 04:41:49,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-02-04 04:41:49,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-02-04 04:41:49,228 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 14 [2018-02-04 04:41:49,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:41:49,228 INFO L432 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-02-04 04:41:49,228 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 04:41:49,228 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-02-04 04:41:49,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-02-04 04:41:49,229 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:41:49,229 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:41:49,229 INFO L371 AbstractCegarLoop]: === Iteration 3 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 04:41:49,229 INFO L82 PathProgramCache]: Analyzing trace with hash -267768884, 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 04:41:49,233 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:41:49,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:49,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:49,283 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 04:41:49,299 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:41:49,299 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:41:49,299 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:41:49,300 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 04:41:49,300 INFO L182 omatonBuilderFactory]: Interpolants [262#true, 263#false, 267#(= 0 main_~i~1), 268#(= 0 |foo_#in~size|), 269#(<= foo_~size foo_~i~0), 270#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 04:41:49,300 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 04:41:49,300 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:41:49,300 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:41:49,301 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:41:49,301 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 6 states. [2018-02-04 04:41:49,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:41:49,484 INFO L93 Difference]: Finished difference Result 73 states and 76 transitions. [2018-02-04 04:41:49,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:41:49,485 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-02-04 04:41:49,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:41:49,486 INFO L225 Difference]: With dead ends: 73 [2018-02-04 04:41:49,486 INFO L226 Difference]: Without dead ends: 73 [2018-02-04 04:41:49,486 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-02-04 04:41:49,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-02-04 04:41:49,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 57. [2018-02-04 04:41:49,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2018-02-04 04:41:49,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 60 transitions. [2018-02-04 04:41:49,491 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 60 transitions. Word has length 15 [2018-02-04 04:41:49,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:41:49,492 INFO L432 AbstractCegarLoop]: Abstraction has 57 states and 60 transitions. [2018-02-04 04:41:49,492 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:41:49,492 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 60 transitions. [2018-02-04 04:41:49,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:41:49,492 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:41:49,492 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:41:49,493 INFO L371 AbstractCegarLoop]: === Iteration 4 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 04:41:49,493 INFO L82 PathProgramCache]: Analyzing trace with hash 1098181562, 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) [2018-02-04 04:41:49,496 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:41:49,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:49,506 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:41:49,509 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:41:49,510 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:41:49,511 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:41:49,511 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:41:49,541 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 04:41:49,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:49,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:49,562 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 04:41:49,590 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:41:49,590 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 04:41:49,590 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:41:49,591 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 04:41:49,591 INFO L182 omatonBuilderFactory]: Interpolants [420#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 407#true, 408#false, 412#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 413#(= 1 (select |#valid| |main_~#b~0.base|))] [2018-02-04 04:41:49,591 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 04:41:49,591 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:41:49,591 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:41:49,591 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=8, Unknown=1, NotChecked=4, Total=20 [2018-02-04 04:41:49,592 INFO L87 Difference]: Start difference. First operand 57 states and 60 transitions. Second operand 5 states. [2018-02-04 04:41:49,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:41:49,693 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2018-02-04 04:41:49,694 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:41:49,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-04 04:41:49,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:41:49,697 INFO L225 Difference]: With dead ends: 55 [2018-02-04 04:41:49,697 INFO L226 Difference]: Without dead ends: 55 [2018-02-04 04:41:49,697 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=12, Unknown=2, NotChecked=6, Total=30 [2018-02-04 04:41:49,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-02-04 04:41:49,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-02-04 04:41:49,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-02-04 04:41:49,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2018-02-04 04:41:49,701 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 19 [2018-02-04 04:41:49,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:41:49,702 INFO L432 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2018-02-04 04:41:49,702 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:41:49,702 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-02-04 04:41:49,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:41:49,702 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:41:49,702 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:41:49,702 INFO L371 AbstractCegarLoop]: === Iteration 5 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 04:41:49,703 INFO L82 PathProgramCache]: Analyzing trace with hash 1098181563, 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) [2018-02-04 04:41:49,706 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:41:49,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:49,720 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 04:41:49,724 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:41:49,724 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:41:49,724 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:41:49,724 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 04:41:49,729 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |c_#length| %1 400) (store %0 %1 400)) :qid itp)) :qid itp)) is different from true [2018-02-04 04:41:49,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:49,777 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 04:41:49,798 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:41:49,799 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:41:49,799 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:41:49,799 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 04:41:49,799 INFO L182 omatonBuilderFactory]: Interpolants [547#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 533#true, 534#false, 538#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#length| %1 400) (store %0 %1 400)) :qid itp)) :qid itp)), 539#(and (= 400 (select |#length| |main_~#b~0.base|)) (= 0 |main_~#b~0.offset|)), 540#(and (= 400 (select |#length| |main_~#b~0.base|)) (<= 0 (+ (* 4 main_~i~1) |main_~#b~0.offset|)) (<= (+ (* 4 main_~i~1) |main_~#b~0.offset| 4) (select |#length| |main_~#b~0.base|)))] [2018-02-04 04:41:49,799 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 04:41:49,800 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 04:41:49,800 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 04:41:49,800 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 04:41:49,800 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 6 states. [2018-02-04 04:41:49,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:41:49,913 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2018-02-04 04:41:49,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 04:41:49,913 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2018-02-04 04:41:49,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:41:49,914 INFO L225 Difference]: With dead ends: 58 [2018-02-04 04:41:49,914 INFO L226 Difference]: Without dead ends: 58 [2018-02-04 04:41:49,915 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 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 04:41:49,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-02-04 04:41:49,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2018-02-04 04:41:49,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-02-04 04:41:49,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 61 transitions. [2018-02-04 04:41:49,919 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 61 transitions. Word has length 19 [2018-02-04 04:41:49,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:41:49,919 INFO L432 AbstractCegarLoop]: Abstraction has 58 states and 61 transitions. [2018-02-04 04:41:49,919 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 04:41:49,919 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 61 transitions. [2018-02-04 04:41:49,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2018-02-04 04:41:49,920 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:41:49,920 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:41:49,920 INFO L371 AbstractCegarLoop]: === Iteration 6 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 04:41:49,920 INFO L82 PathProgramCache]: Analyzing trace with hash -2060273317, 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 04:41:49,923 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:41:49,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:50,067 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:41:50,102 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-02-04 04:41:50,102 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2018-02-04 04:41:50,102 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 04:41:50,102 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 04:41:50,102 INFO L182 omatonBuilderFactory]: Interpolants [673#(= 0 main_~i~1), 680#(= 1 main_~i~1), 681#(= 1 |foo_#in~n|), 682#(and (< foo_~i~0 foo_~n) (<= 0 foo_~i~0)), 683#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 668#true, 669#false] [2018-02-04 04:41:50,102 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:41:50,103 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:41:50,103 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:41:50,103 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:41:50,103 INFO L87 Difference]: Start difference. First operand 58 states and 61 transitions. Second operand 7 states. [2018-02-04 04:41:50,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:41:50,263 INFO L93 Difference]: Finished difference Result 105 states and 110 transitions. [2018-02-04 04:41:50,263 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-02-04 04:41:50,263 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 28 [2018-02-04 04:41:50,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:41:50,265 INFO L225 Difference]: With dead ends: 105 [2018-02-04 04:41:50,265 INFO L226 Difference]: Without dead ends: 105 [2018-02-04 04:41:50,265 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:41:50,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2018-02-04 04:41:50,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 80. [2018-02-04 04:41:50,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2018-02-04 04:41:50,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 89 transitions. [2018-02-04 04:41:50,270 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 89 transitions. Word has length 28 [2018-02-04 04:41:50,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:41:50,271 INFO L432 AbstractCegarLoop]: Abstraction has 80 states and 89 transitions. [2018-02-04 04:41:50,271 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:41:50,271 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 89 transitions. [2018-02-04 04:41:50,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-02-04 04:41:50,271 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:41:50,272 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:41:50,272 INFO L371 AbstractCegarLoop]: === Iteration 7 === [fooErr1RequiresViolation, fooErr0AssertViolation, fooErr2RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr2RequiresViolation, mainErr0RequiresViolation, mainErr4EnsuresViolation]=== [2018-02-04 04:41:50,272 INFO L82 PathProgramCache]: Analyzing trace with hash 556036660, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 04:41:50,275 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 04:41:50,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:41:50,305 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 112 column 526: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool 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$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 04:41:50,307 INFO L168 Benchmark]: Toolchain (without parser) took 1937.99 ms. Allocated memory was 400.0 MB in the beginning and 422.1 MB in the end (delta: 22.0 MB). Free memory was 356.7 MB in the beginning and 263.0 MB in the end (delta: 93.7 MB). Peak memory consumption was 115.7 MB. Max. memory is 5.3 GB. [2018-02-04 04:41:50,308 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 400.0 MB. Free memory is still 362.0 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:41:50,308 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.41 ms. Allocated memory is still 400.0 MB. Free memory was 356.7 MB in the beginning and 348.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:41:50,309 INFO L168 Benchmark]: Boogie Preprocessor took 19.40 ms. Allocated memory is still 400.0 MB. Free memory is still 348.8 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:41:50,309 INFO L168 Benchmark]: RCFGBuilder took 178.39 ms. Allocated memory is still 400.0 MB. Free memory was 348.8 MB in the beginning and 329.0 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 5.3 GB. [2018-02-04 04:41:50,309 INFO L168 Benchmark]: TraceAbstraction took 1587.16 ms. Allocated memory was 400.0 MB in the beginning and 422.1 MB in the end (delta: 22.0 MB). Free memory was 329.0 MB in the beginning and 263.0 MB in the end (delta: 65.9 MB). Peak memory consumption was 87.9 MB. Max. memory is 5.3 GB. [2018-02-04 04:41:50,312 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 400.0 MB. Free memory is still 362.0 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 150.41 ms. Allocated memory is still 400.0 MB. Free memory was 356.7 MB in the beginning and 348.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 7.9 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 19.40 ms. Allocated memory is still 400.0 MB. Free memory is still 348.8 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 178.39 ms. Allocated memory is still 400.0 MB. Free memory was 348.8 MB in the beginning and 329.0 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.8 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1587.16 ms. Allocated memory was 400.0 MB in the beginning and 422.1 MB in the end (delta: 22.0 MB). Free memory was 329.0 MB in the beginning and 263.0 MB in the end (delta: 65.9 MB). Peak memory consumption was 87.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 112 column 526: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 112 column 526: Sort mismatch at argument #1 for function (declare-fun >= (Int Int) Bool) supplied sort is Bool: 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/ArraysOfVariableLength_true-valid-memsafety.c_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-41-50-318.csv Received shutdown request...