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/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/forester-heap/sll-rb-sentinel_true-unreach-call_true-valid-memsafety.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 11:10:14,899 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 11:10:14,900 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 11:10:14,913 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 11:10:14,913 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 11:10:14,914 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 11:10:14,915 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 11:10:14,916 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 11:10:14,918 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 11:10:14,919 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 11:10:14,919 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 11:10:14,920 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 11:10:14,920 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 11:10:14,921 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 11:10:14,922 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 11:10:14,924 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 11:10:14,925 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 11:10:14,926 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 11:10:14,927 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 11:10:14,928 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 11:10:14,930 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-02 11:10:14,934 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 11:10:14,935 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 11:10:14,935 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cav18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf [2018-02-02 11:10:14,944 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 11:10:14,944 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 11:10:14,945 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 11:10:14,945 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 11:10:14,946 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 11:10:14,946 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 11:10:14,946 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 11:10:14,946 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 11:10:14,946 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 11:10:14,946 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 11:10:14,947 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 11:10:14,947 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 11:10:14,947 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 11:10:14,947 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 11:10:14,947 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 11:10:14,947 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 11:10:14,947 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 11:10:14,947 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 11:10:14,948 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 11:10:14,948 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 11:10:14,948 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 11:10:14,948 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 11:10:14,948 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-02 11:10:14,948 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-02 11:10:14,948 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 11:10:14,976 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 11:10:14,987 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 11:10:14,990 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 11:10:14,992 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 11:10:14,992 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 11:10:14,993 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/forester-heap/sll-rb-sentinel_true-unreach-call_true-valid-memsafety.i [2018-02-02 11:10:15,148 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 11:10:15,149 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 11:10:15,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 11:10:15,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 11:10:15,154 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 11:10:15,155 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 11:10:15" (1/1) ... [2018-02-02 11:10:15,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4817ffc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:10:15, skipping insertion in model container [2018-02-02 11:10:15,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 11:10:15" (1/1) ... [2018-02-02 11:10:15,167 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 11:10:15,197 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 11:10:15,299 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 11:10:15,314 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 11:10:15,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:10:15 WrapperNode [2018-02-02 11:10:15,322 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 11:10:15,323 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 11:10:15,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 11:10:15,323 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 11:10:15,333 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:10:15" (1/1) ... [2018-02-02 11:10:15,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:10:15" (1/1) ... [2018-02-02 11:10:15,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:10:15" (1/1) ... [2018-02-02 11:10:15,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:10:15" (1/1) ... [2018-02-02 11:10:15,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:10:15" (1/1) ... [2018-02-02 11:10:15,349 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:10:15" (1/1) ... [2018-02-02 11:10:15,350 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:10:15" (1/1) ... [2018-02-02 11:10:15,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 11:10:15,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 11:10:15,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 11:10:15,353 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 11:10:15,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:10:15" (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 [2018-02-02 11:10:15,389 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 11:10:15,389 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 11:10:15,389 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 11:10:15,389 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 11:10:15,390 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 11:10:15,390 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 11:10:15,390 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 11:10:15,390 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 11:10:15,390 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 11:10:15,390 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 11:10:15,390 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 11:10:15,390 INFO L128 BoogieDeclarations]: Found specification of procedure free [2018-02-02 11:10:15,390 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 11:10:15,390 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-02 11:10:15,390 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 11:10:15,390 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 11:10:15,390 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 11:10:15,719 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 11:10:15,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 11:10:15 BoogieIcfgContainer [2018-02-02 11:10:15,719 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 11:10:15,720 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 11:10:15,720 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 11:10:15,722 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 11:10:15,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 11:10:15" (1/3) ... [2018-02-02 11:10:15,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1b1766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 11:10:15, skipping insertion in model container [2018-02-02 11:10:15,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:10:15" (2/3) ... [2018-02-02 11:10:15,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1b1766 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 11:10:15, skipping insertion in model container [2018-02-02 11:10:15,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 11:10:15" (3/3) ... [2018-02-02 11:10:15,725 INFO L107 eAbstractionObserver]: Analyzing ICFG sll-rb-sentinel_true-unreach-call_true-valid-memsafety.i [2018-02-02 11:10:15,731 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 11:10:15,736 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 53 error locations. [2018-02-02 11:10:15,761 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 11:10:15,761 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 11:10:15,761 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-02 11:10:15,762 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 11:10:15,762 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 11:10:15,762 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 11:10:15,762 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 11:10:15,762 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 11:10:15,763 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 11:10:15,775 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2018-02-02 11:10:15,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 11:10:15,782 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:10:15,783 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:10:15,783 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr52EnsuresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 11:10:15,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1462365916, 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 [2018-02-02 11:10:15,807 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:10:15,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:15,840 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-02 11:10:15,851 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:10:15,851 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:10:15,852 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:10:15,853 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:10:15,885 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 [2018-02-02 11:10:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:15,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:15,940 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:10:15,941 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 11:10:15,941 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:10:15,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:15,942 INFO L182 omatonBuilderFactory]: Interpolants [131#true, 132#false, 136#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 137#(= 1 (select |#valid| |main_#t~malloc0.base|)), 138#(= 1 (select |#valid| main_~null~0.base)), 139#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-02 11:10:15,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:15,943 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 11:10:15,950 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 11:10:15,951 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-02 11:10:15,953 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 6 states. [2018-02-02 11:10:16,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:10:16,289 INFO L93 Difference]: Finished difference Result 148 states and 155 transitions. [2018-02-02 11:10:16,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 11:10:16,290 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-02-02 11:10:16,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:10:16,298 INFO L225 Difference]: With dead ends: 148 [2018-02-02 11:10:16,298 INFO L226 Difference]: Without dead ends: 145 [2018-02-02 11:10:16,300 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 [2018-02-02 11:10:16,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2018-02-02 11:10:16,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 126. [2018-02-02 11:10:16,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126 states. [2018-02-02 11:10:16,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 133 transitions. [2018-02-02 11:10:16,378 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 133 transitions. Word has length 8 [2018-02-02 11:10:16,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:10:16,378 INFO L432 AbstractCegarLoop]: Abstraction has 126 states and 133 transitions. [2018-02-02 11:10:16,378 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 11:10:16,379 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 133 transitions. [2018-02-02 11:10:16,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-02-02 11:10:16,379 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:10:16,379 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:10:16,379 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr52EnsuresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 11:10:16,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1462365917, 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 [2018-02-02 11:10:16,383 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:10:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:16,391 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:10:16,391 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:10:16,391 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:10:16,392 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:10:16,395 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-02 11:10:16,440 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-02 11:10:16,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:16,459 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:10:16,459 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 11:10:16,459 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:10:16,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:16,460 INFO L182 omatonBuilderFactory]: Interpolants [418#true, 419#false, 423#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 424#(and (= 8 (select |#length| |main_#t~malloc0.base|)) (= 0 |main_#t~malloc0.offset|)), 425#(and (<= 0 (+ main_~null~0.offset 4)) (<= (+ main_~null~0.offset 8) (select |#length| main_~null~0.base))), 426#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-02 11:10:16,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:16,461 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 11:10:16,461 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 11:10:16,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-02 11:10:16,462 INFO L87 Difference]: Start difference. First operand 126 states and 133 transitions. Second operand 6 states. [2018-02-02 11:10:16,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:10:16,679 INFO L93 Difference]: Finished difference Result 125 states and 132 transitions. [2018-02-02 11:10:16,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 11:10:16,680 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2018-02-02 11:10:16,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:10:16,681 INFO L225 Difference]: With dead ends: 125 [2018-02-02 11:10:16,681 INFO L226 Difference]: Without dead ends: 125 [2018-02-02 11:10:16,682 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=27, Unknown=3, NotChecked=10, Total=56 [2018-02-02 11:10:16,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2018-02-02 11:10:16,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 125. [2018-02-02 11:10:16,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2018-02-02 11:10:16,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 132 transitions. [2018-02-02 11:10:16,688 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 132 transitions. Word has length 8 [2018-02-02 11:10:16,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:10:16,689 INFO L432 AbstractCegarLoop]: Abstraction has 125 states and 132 transitions. [2018-02-02 11:10:16,689 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 11:10:16,689 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 132 transitions. [2018-02-02 11:10:16,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-02-02 11:10:16,689 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:10:16,689 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:10:16,689 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr52EnsuresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 11:10:16,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1911296884, 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 [2018-02-02 11:10:16,693 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:10:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:16,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:16,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:16,761 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:10:16,761 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 11:10:16,761 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:10:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:16,762 INFO L182 omatonBuilderFactory]: Interpolants [688#(and (<= (+ main_~null~0.offset 4) (select |#length| main_~null~0.base)) (<= 0 main_~null~0.offset)), 689#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 681#true, 682#false, 686#(= 0 |main_#t~malloc0.offset|), 687#(or (< (select |#length| main_~null~0.base) (+ main_~null~0.offset 8)) (<= 0 main_~null~0.offset))] [2018-02-02 11:10:16,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:16,762 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 11:10:16,762 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 11:10:16,762 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-02-02 11:10:16,763 INFO L87 Difference]: Start difference. First operand 125 states and 132 transitions. Second operand 6 states. [2018-02-02 11:10:17,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:10:17,021 INFO L93 Difference]: Finished difference Result 195 states and 209 transitions. [2018-02-02 11:10:17,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 11:10:17,021 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 9 [2018-02-02 11:10:17,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:10:17,024 INFO L225 Difference]: With dead ends: 195 [2018-02-02 11:10:17,024 INFO L226 Difference]: Without dead ends: 195 [2018-02-02 11:10:17,025 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-02-02 11:10:17,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2018-02-02 11:10:17,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 124. [2018-02-02 11:10:17,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2018-02-02 11:10:17,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 131 transitions. [2018-02-02 11:10:17,032 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 131 transitions. Word has length 9 [2018-02-02 11:10:17,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:10:17,032 INFO L432 AbstractCegarLoop]: Abstraction has 124 states and 131 transitions. [2018-02-02 11:10:17,032 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 11:10:17,032 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 131 transitions. [2018-02-02 11:10:17,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-02 11:10:17,033 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:10:17,033 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:10:17,033 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr52EnsuresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 11:10:17,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1064079776, 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 [2018-02-02 11:10:17,037 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:10:17,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:17,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:17,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:17,088 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:10:17,088 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 11:10:17,088 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:10:17,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:17,089 INFO L182 omatonBuilderFactory]: Interpolants [1013#true, 1014#false, 1018#(= 1 (select |#valid| |main_#t~malloc3.base|)), 1019#(= 1 (select |#valid| main_~list~0.base)), 1020#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-02 11:10:17,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:17,089 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 11:10:17,089 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 11:10:17,089 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 11:10:17,090 INFO L87 Difference]: Start difference. First operand 124 states and 131 transitions. Second operand 5 states. [2018-02-02 11:10:17,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:10:17,228 INFO L93 Difference]: Finished difference Result 132 states and 139 transitions. [2018-02-02 11:10:17,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 11:10:17,228 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-02-02 11:10:17,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:10:17,229 INFO L225 Difference]: With dead ends: 132 [2018-02-02 11:10:17,229 INFO L226 Difference]: Without dead ends: 132 [2018-02-02 11:10:17,230 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-02 11:10:17,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-02-02 11:10:17,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 119. [2018-02-02 11:10:17,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2018-02-02 11:10:17,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 127 transitions. [2018-02-02 11:10:17,236 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 127 transitions. Word has length 12 [2018-02-02 11:10:17,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:10:17,236 INFO L432 AbstractCegarLoop]: Abstraction has 119 states and 127 transitions. [2018-02-02 11:10:17,236 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 11:10:17,236 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 127 transitions. [2018-02-02 11:10:17,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-02 11:10:17,237 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:10:17,237 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:10:17,237 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr52EnsuresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 11:10:17,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1064079775, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 11:10:17,241 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:10:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:17,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:17,294 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:10:17,295 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 11:10:17,295 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:10:17,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:17,295 INFO L182 omatonBuilderFactory]: Interpolants [1280#(and (<= (+ main_~list~0.offset 4) (select |#length| main_~list~0.base)) (<= 0 main_~list~0.offset)), 1281#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 1274#true, 1275#false, 1279#(and (= 8 (select |#length| |main_#t~malloc3.base|)) (= 0 |main_#t~malloc3.offset|))] [2018-02-02 11:10:17,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:17,295 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 11:10:17,295 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 11:10:17,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 11:10:17,296 INFO L87 Difference]: Start difference. First operand 119 states and 127 transitions. Second operand 5 states. [2018-02-02 11:10:17,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:10:17,493 INFO L93 Difference]: Finished difference Result 167 states and 179 transitions. [2018-02-02 11:10:17,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 11:10:17,493 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2018-02-02 11:10:17,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:10:17,494 INFO L225 Difference]: With dead ends: 167 [2018-02-02 11:10:17,494 INFO L226 Difference]: Without dead ends: 167 [2018-02-02 11:10:17,494 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-02 11:10:17,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2018-02-02 11:10:17,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 150. [2018-02-02 11:10:17,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150 states. [2018-02-02 11:10:17,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 174 transitions. [2018-02-02 11:10:17,502 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 174 transitions. Word has length 12 [2018-02-02 11:10:17,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:10:17,503 INFO L432 AbstractCegarLoop]: Abstraction has 150 states and 174 transitions. [2018-02-02 11:10:17,503 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 11:10:17,503 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 174 transitions. [2018-02-02 11:10:17,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-02 11:10:17,503 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:10:17,503 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:10:17,503 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr52EnsuresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 11:10:17,504 INFO L82 PathProgramCache]: Analyzing trace with hash 1373265296, 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 [2018-02-02 11:10:17,508 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:10:17,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:17,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:17,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:17,574 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:10:17,574 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 11:10:17,574 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:10:17,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:17,575 INFO L182 omatonBuilderFactory]: Interpolants [1601#true, 1602#false, 1606#(and (= 8 (select |#length| |main_#t~malloc3.base|)) (= 0 |main_#t~malloc3.offset|)), 1607#(and (<= (+ main_~list~0.offset 8) (select |#length| main_~list~0.base)) (<= 0 (+ main_~list~0.offset 4))), 1608#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-02 11:10:17,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:17,575 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 11:10:17,575 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 11:10:17,575 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 11:10:17,576 INFO L87 Difference]: Start difference. First operand 150 states and 174 transitions. Second operand 5 states. [2018-02-02 11:10:17,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:10:17,758 INFO L93 Difference]: Finished difference Result 165 states and 177 transitions. [2018-02-02 11:10:17,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 11:10:17,759 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-02-02 11:10:17,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:10:17,760 INFO L225 Difference]: With dead ends: 165 [2018-02-02 11:10:17,760 INFO L226 Difference]: Without dead ends: 165 [2018-02-02 11:10:17,760 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-02 11:10:17,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2018-02-02 11:10:17,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 149. [2018-02-02 11:10:17,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2018-02-02 11:10:17,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 172 transitions. [2018-02-02 11:10:17,765 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 172 transitions. Word has length 13 [2018-02-02 11:10:17,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:10:17,765 INFO L432 AbstractCegarLoop]: Abstraction has 149 states and 172 transitions. [2018-02-02 11:10:17,765 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 11:10:17,766 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 172 transitions. [2018-02-02 11:10:17,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 11:10:17,766 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:10:17,766 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:10:17,766 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr52EnsuresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 11:10:17,766 INFO L82 PathProgramCache]: Analyzing trace with hash 503792665, 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 [2018-02-02 11:10:17,772 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:10:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:17,817 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:17,833 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:10:17,833 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 11:10:17,834 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:10:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:17,834 INFO L182 omatonBuilderFactory]: Interpolants [1925#true, 1926#false, 1930#(= 1 (select |#valid| main_~list~0.base)), 1931#(= 1 (select |#valid| main_~end~0.base)), 1932#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-02 11:10:17,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:10:17,834 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-02 11:10:17,834 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-02 11:10:17,835 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-02 11:10:17,835 INFO L87 Difference]: Start difference. First operand 149 states and 172 transitions. Second operand 5 states. [2018-02-02 11:10:17,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:10:17,979 INFO L93 Difference]: Finished difference Result 166 states and 191 transitions. [2018-02-02 11:10:17,980 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 11:10:17,980 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2018-02-02 11:10:17,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:10:17,980 INFO L225 Difference]: With dead ends: 166 [2018-02-02 11:10:17,980 INFO L226 Difference]: Without dead ends: 166 [2018-02-02 11:10:17,981 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-02 11:10:17,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2018-02-02 11:10:17,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 144. [2018-02-02 11:10:17,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2018-02-02 11:10:17,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 168 transitions. [2018-02-02 11:10:17,989 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 168 transitions. Word has length 19 [2018-02-02 11:10:17,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:10:17,989 INFO L432 AbstractCegarLoop]: Abstraction has 144 states and 168 transitions. [2018-02-02 11:10:17,990 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-02 11:10:17,990 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 168 transitions. [2018-02-02 11:10:17,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-02 11:10:17,990 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:10:17,990 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:10:17,991 INFO L371 AbstractCegarLoop]: === Iteration 8 === [mainErr51RequiresViolation, mainErr26RequiresViolation, mainErr18RequiresViolation, mainErr23RequiresViolation, mainErr38RequiresViolation, mainErr0RequiresViolation, mainErr31RequiresViolation, mainErr46RequiresViolation, mainErr29RequiresViolation, mainErr3RequiresViolation, mainErr15RequiresViolation, mainErr49RequiresViolation, mainErr12RequiresViolation, mainErr6RequiresViolation, mainErr35RequiresViolation, mainErr17RequiresViolation, mainErr42RequiresViolation, mainErr30RequiresViolation, mainErr11RequiresViolation, mainErr24RequiresViolation, mainErr44RequiresViolation, mainErr10RequiresViolation, mainErr43RequiresViolation, mainErr4RequiresViolation, mainErr50RequiresViolation, mainErr37RequiresViolation, mainErr5RequiresViolation, mainErr13RequiresViolation, mainErr36RequiresViolation, mainErr28RequiresViolation, mainErr33RequiresViolation, mainErr52EnsuresViolation, mainErr21RequiresViolation, mainErr41RequiresViolation, mainErr48RequiresViolation, mainErr39RequiresViolation, mainErr16RequiresViolation, mainErr25RequiresViolation, mainErr2RequiresViolation, mainErr45RequiresViolation, mainErr19RequiresViolation, mainErr22RequiresViolation, mainErr32RequiresViolation, mainErr27RequiresViolation, mainErr1RequiresViolation, mainErr9RequiresViolation, mainErr7RequiresViolation, mainErr20RequiresViolation, mainErr8RequiresViolation, mainErr34RequiresViolation, mainErr47RequiresViolation, mainErr14RequiresViolation, mainErr40RequiresViolation]=== [2018-02-02 11:10:17,991 INFO L82 PathProgramCache]: Analyzing trace with hash 503792666, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 11:10:17,996 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:10:18,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:10:18,022 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: Unsupported proof rule: (let ((a!1 (= (+ 0 (* (- 1) (select |#length_17| |main_#t~malloc3.base_9|))) (* (- 1) (select |#length_17| |main_#t~malloc3.base_9|))))) (rewrite a!1)) [2018-02-02 11:10:18,022 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 108 column 311: 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) [2018-02-02 11:10:18,028 INFO L168 Benchmark]: Toolchain (without parser) took 2879.95 ms. Allocated memory was 408.4 MB in the beginning and 594.5 MB in the end (delta: 186.1 MB). Free memory was 365.3 MB in the beginning and 500.7 MB in the end (delta: -135.4 MB). Peak memory consumption was 50.8 MB. Max. memory is 5.3 GB. [2018-02-02 11:10:18,029 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 408.4 MB. Free memory is still 371.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 11:10:18,030 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.75 ms. Allocated memory is still 408.4 MB. Free memory was 365.3 MB in the beginning and 353.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. [2018-02-02 11:10:18,031 INFO L168 Benchmark]: Boogie Preprocessor took 29.57 ms. Allocated memory is still 408.4 MB. Free memory was 353.2 MB in the beginning and 351.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 11:10:18,031 INFO L168 Benchmark]: RCFGBuilder took 366.99 ms. Allocated memory is still 408.4 MB. Free memory was 351.9 MB in the beginning and 316.5 MB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 5.3 GB. [2018-02-02 11:10:18,032 INFO L168 Benchmark]: TraceAbstraction took 2307.94 ms. Allocated memory was 408.4 MB in the beginning and 594.5 MB in the end (delta: 186.1 MB). Free memory was 315.2 MB in the beginning and 500.7 MB in the end (delta: -185.5 MB). Peak memory consumption was 604.0 kB. Max. memory is 5.3 GB. [2018-02-02 11:10:18,034 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 408.4 MB. Free memory is still 371.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 172.75 ms. Allocated memory is still 408.4 MB. Free memory was 365.3 MB in the beginning and 353.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.57 ms. Allocated memory is still 408.4 MB. Free memory was 353.2 MB in the beginning and 351.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 366.99 ms. Allocated memory is still 408.4 MB. Free memory was 351.9 MB in the beginning and 316.5 MB in the end (delta: 35.5 MB). Peak memory consumption was 35.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2307.94 ms. Allocated memory was 408.4 MB in the beginning and 594.5 MB in the end (delta: 186.1 MB). Free memory was 315.2 MB in the beginning and 500.7 MB in the end (delta: -185.5 MB). Peak memory consumption was 604.0 kB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 108 column 311: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 108 column 311: 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/sll-rb-sentinel_true-unreach-call_true-valid-memsafety.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-02_11-10-18-042.csv Received shutdown request...