java -Xmx6000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data ./data --generate-csv --csv-dir ../../../releaseScripts/default/UAutomizer-linux/csv -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf -i ../../../trunk/examples/svcomp/list-properties/simple_built_from_end_true-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c17473d-m [2018-02-04 20:53:35,746 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 20:53:35,748 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 20:53:35,760 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 20:53:35,760 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 20:53:35,761 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 20:53:35,762 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 20:53:35,763 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 20:53:35,765 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 20:53:35,765 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 20:53:35,766 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 20:53:35,766 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 20:53:35,767 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 20:53:35,768 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 20:53:35,768 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 20:53:35,770 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 20:53:35,772 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 20:53:35,773 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 20:53:35,774 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 20:53:35,775 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 20:53:35,777 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 20:53:35,780 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 20:53:35,781 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 20:53:35,781 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 20:53:35,789 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 20:53:35,790 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 20:53:35,790 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 20:53:35,790 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 20:53:35,791 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 20:53:35,791 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 20:53:35,791 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 20:53:35,791 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 20:53:35,791 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 20:53:35,791 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 20:53:35,791 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 20:53:35,791 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 20:53:35,791 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 20:53:35,792 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 20:53:35,792 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 20:53:35,792 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 20:53:35,792 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 20:53:35,792 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 20:53:35,792 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 20:53:35,792 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 20:53:35,792 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 20:53:35,792 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-04 20:53:35,793 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-04 20:53:35,793 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:53:35,818 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 20:53:35,826 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 20:53:35,828 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 20:53:35,829 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 20:53:35,830 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 20:53:35,830 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/simple_built_from_end_true-unreach-call_false-valid-memtrack.i [2018-02-04 20:53:35,966 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 20:53:35,967 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 20:53:35,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 20:53:35,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 20:53:35,971 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 20:53:35,972 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:53:35" (1/1) ... [2018-02-04 20:53:35,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33a17581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:35, skipping insertion in model container [2018-02-04 20:53:35,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 08:53:35" (1/1) ... [2018-02-04 20:53:35,984 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:53:36,010 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 20:53:36,097 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:53:36,110 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 20:53:36,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:36 WrapperNode [2018-02-04 20:53:36,116 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 20:53:36,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 20:53:36,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 20:53:36,117 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 20:53:36,129 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:36" (1/1) ... [2018-02-04 20:53:36,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:36" (1/1) ... [2018-02-04 20:53:36,137 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:36" (1/1) ... [2018-02-04 20:53:36,137 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:36" (1/1) ... [2018-02-04 20:53:36,140 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:36" (1/1) ... [2018-02-04 20:53:36,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:36" (1/1) ... [2018-02-04 20:53:36,144 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:36" (1/1) ... [2018-02-04 20:53:36,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 20:53:36,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 20:53:36,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 20:53:36,146 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 20:53:36,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:36" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 20:53:36,184 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 20:53:36,185 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 20:53:36,185 INFO L136 BoogieDeclarations]: Found implementation of procedure exit [2018-02-04 20:53:36,185 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 20:53:36,185 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-04 20:53:36,185 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-04 20:53:36,185 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 20:53:36,185 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 20:53:36,185 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 20:53:36,185 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 20:53:36,185 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 20:53:36,185 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-04 20:53:36,185 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 20:53:36,185 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-04 20:53:36,186 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-02-04 20:53:36,186 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 20:53:36,186 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 20:53:36,186 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 20:53:36,309 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 20:53:36,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:53:36 BoogieIcfgContainer [2018-02-04 20:53:36,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 20:53:36,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 20:53:36,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 20:53:36,312 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 20:53:36,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 08:53:35" (1/3) ... [2018-02-04 20:53:36,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798e0141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:53:36, skipping insertion in model container [2018-02-04 20:53:36,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 08:53:36" (2/3) ... [2018-02-04 20:53:36,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@798e0141 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 08:53:36, skipping insertion in model container [2018-02-04 20:53:36,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 08:53:36" (3/3) ... [2018-02-04 20:53:36,314 INFO L107 eAbstractionObserver]: Analyzing ICFG simple_built_from_end_true-unreach-call_false-valid-memtrack.i [2018-02-04 20:53:36,319 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-04 20:53:36,324 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-02-04 20:53:36,347 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 20:53:36,347 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 20:53:36,347 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-04 20:53:36,348 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-04 20:53:36,348 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 20:53:36,348 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 20:53:36,348 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 20:53:36,348 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 20:53:36,349 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 20:53:36,360 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-02-04 20:53:36,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-02-04 20:53:36,369 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:53:36,370 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:53:36,370 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-04 20:53:36,374 INFO L82 PathProgramCache]: Analyzing trace with hash -119107064, 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 20:53:36,385 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:53:36,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:36,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:36,433 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 20:53:36,452 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:53:36,452 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-04 20:53:36,452 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:53:36,453 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 20:53:36,453 INFO L182 omatonBuilderFactory]: Interpolants [41#true, 42#false, 46#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:53:36,453 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 20:53:36,454 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-04 20:53:36,461 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-04 20:53:36,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-04 20:53:36,463 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2018-02-04 20:53:36,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:53:36,549 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2018-02-04 20:53:36,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-04 20:53:36,550 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-02-04 20:53:36,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:53:36,556 INFO L225 Difference]: With dead ends: 54 [2018-02-04 20:53:36,556 INFO L226 Difference]: Without dead ends: 45 [2018-02-04 20:53:36,557 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 20:53:36,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-02-04 20:53:36,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 40. [2018-02-04 20:53:36,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-02-04 20:53:36,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2018-02-04 20:53:36,580 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 9 [2018-02-04 20:53:36,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:53:36,580 INFO L432 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2018-02-04 20:53:36,581 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-04 20:53:36,581 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-02-04 20:53:36,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-04 20:53:36,581 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:53:36,581 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:53:36,581 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-04 20:53:36,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1438918540, 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 20:53:36,585 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:53:36,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:36,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:36,618 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 20:53:36,635 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:53:36,635 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-04 20:53:36,635 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:53:36,635 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 20:53:36,635 INFO L182 omatonBuilderFactory]: Interpolants [146#(and (= main_~p~0.base 0) (= main_~p~0.offset 0)), 147#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 141#true, 142#false] [2018-02-04 20:53:36,636 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 20:53:36,637 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-04 20:53:36,637 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-04 20:53:36,638 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-04 20:53:36,638 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 4 states. [2018-02-04 20:53:36,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:53:36,695 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2018-02-04 20:53:36,695 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 20:53:36,695 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-02-04 20:53:36,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:53:36,696 INFO L225 Difference]: With dead ends: 46 [2018-02-04 20:53:36,696 INFO L226 Difference]: Without dead ends: 44 [2018-02-04 20:53:36,697 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-02-04 20:53:36,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-02-04 20:53:36,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 34. [2018-02-04 20:53:36,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-02-04 20:53:36,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-02-04 20:53:36,700 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 12 [2018-02-04 20:53:36,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:53:36,700 INFO L432 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-02-04 20:53:36,700 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-04 20:53:36,700 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-02-04 20:53:36,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 20:53:36,701 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:53:36,701 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:53:36,701 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-04 20:53:36,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1655605995, 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 20:53:36,704 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:53:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:36,715 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:53:36,718 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:36,718 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:36,719 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:36,719 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:36,795 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 20:53:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:36,812 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 20:53:36,828 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:53:36,828 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:53:36,828 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:53:36,828 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 20:53:36,829 INFO L182 omatonBuilderFactory]: Interpolants [230#true, 231#false, 235#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store |#valid| %1 1) (store %0 %1 1)) :qid itp)) :qid itp)), 236#(= 1 (select |#valid| |main_#t~malloc1.base|)), 237#(= 1 (select |#valid| main_~t~0.base)), 238#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:53:36,829 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 20:53:36,829 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:53:36,829 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:53:36,829 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 20:53:36,830 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 6 states. [2018-02-04 20:53:36,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:53:36,958 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-02-04 20:53:36,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 20:53:36,958 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-02-04 20:53:36,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:53:36,959 INFO L225 Difference]: With dead ends: 34 [2018-02-04 20:53:36,959 INFO L226 Difference]: Without dead ends: 34 [2018-02-04 20:53:36,959 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=28, Unknown=2, NotChecked=10, Total=56 [2018-02-04 20:53:36,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-02-04 20:53:36,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2018-02-04 20:53:36,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-02-04 20:53:36,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-02-04 20:53:36,962 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 13 [2018-02-04 20:53:36,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:53:36,962 INFO L432 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-02-04 20:53:36,962 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:53:36,962 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-02-04 20:53:36,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-04 20:53:36,963 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:53:36,963 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:53:36,963 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-04 20:53:36,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1655605994, now seen corresponding path program 1 times No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-04 20:53:36,967 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:53:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:36,982 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:53:36,984 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:36,984 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:36,985 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:36,985 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:36,999 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:53:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:37,039 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 20:53:37,057 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:53:37,057 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:53:37,058 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:53:37,058 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 20:53:37,058 INFO L182 omatonBuilderFactory]: Interpolants [309#true, 310#false, 314#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 315#(and (= 0 |main_#t~malloc1.offset|) (= 8 (select |#length| |main_#t~malloc1.base|))), 316#(and (<= 0 main_~t~0.offset) (<= (+ main_~t~0.offset 4) (select |#length| main_~t~0.base))), 317#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:53:37,058 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 20:53:37,058 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:53:37,058 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:53:37,058 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 20:53:37,059 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 6 states. [2018-02-04 20:53:37,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:53:37,124 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2018-02-04 20:53:37,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 20:53:37,125 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-02-04 20:53:37,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:53:37,126 INFO L225 Difference]: With dead ends: 32 [2018-02-04 20:53:37,126 INFO L226 Difference]: Without dead ends: 32 [2018-02-04 20:53:37,126 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=25, Unknown=5, NotChecked=10, Total=56 [2018-02-04 20:53:37,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-02-04 20:53:37,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2018-02-04 20:53:37,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-02-04 20:53:37,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-02-04 20:53:37,129 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 13 [2018-02-04 20:53:37,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:53:37,129 INFO L432 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-02-04 20:53:37,129 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:53:37,129 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-02-04 20:53:37,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 20:53:37,130 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:53:37,130 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:53:37,130 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-04 20:53:37,130 INFO L82 PathProgramCache]: Analyzing trace with hash 215821702, 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 20:53:37,140 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 20:53:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:37,155 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-04 20:53:37,157 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:37,157 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:37,157 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:37,158 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-04 20:53:37,163 WARN L1033 $PredicateComparison]: unable to prove that (exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |c_#length| %1 8)) :qid itp)) :qid itp)) is different from true [2018-02-04 20:53:37,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:37,204 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 20:53:37,235 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:53:37,235 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 20:53:37,235 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:53:37,235 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 20:53:37,236 INFO L182 omatonBuilderFactory]: Interpolants [385#true, 386#false, 390#(exists ((%0 (Array Int Int))) (! (forall ((%1 Int)) (! (= (store %0 %1 8) (store |#length| %1 8)) :qid itp)) :qid itp)), 391#(and (= 0 |main_#t~malloc1.offset|) (= 8 (select |#length| |main_#t~malloc1.base|))), 392#(and (<= 0 (+ main_~t~0.offset 4)) (<= (+ main_~t~0.offset 8) (select |#length| main_~t~0.base))), 393#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-04 20:53:37,236 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 20:53:37,236 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:53:37,236 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:53:37,236 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-04 20:53:37,237 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 6 states. [2018-02-04 20:53:37,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:53:37,306 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2018-02-04 20:53:37,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 20:53:37,307 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-02-04 20:53:37,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:53:37,307 INFO L225 Difference]: With dead ends: 31 [2018-02-04 20:53:37,307 INFO L226 Difference]: Without dead ends: 31 [2018-02-04 20:53:37,307 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=27, Unknown=3, NotChecked=10, Total=56 [2018-02-04 20:53:37,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-02-04 20:53:37,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-02-04 20:53:37,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-02-04 20:53:37,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2018-02-04 20:53:37,310 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 14 [2018-02-04 20:53:37,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:53:37,310 INFO L432 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2018-02-04 20:53:37,310 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:53:37,310 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2018-02-04 20:53:37,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 20:53:37,311 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:53:37,311 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:53:37,311 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-04 20:53:37,311 INFO L82 PathProgramCache]: Analyzing trace with hash -252306105, 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 20:53:37,314 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:53:37,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:37,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:53:37,377 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 20:53:37,377 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 20:53:37,378 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-04 20:53:37,378 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 20:53:37,378 INFO L182 omatonBuilderFactory]: Interpolants [464#(not (= 0 |main_#t~malloc1.base|)), 465#(not (= 0 main_~t~0.base)), 466#(not (= 0 main_~p~0.base)), 467#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|)), 459#true, 460#false] [2018-02-04 20:53:37,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 20:53:37,378 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-04 20:53:37,378 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-04 20:53:37,379 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-04 20:53:37,379 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 6 states. [2018-02-04 20:53:37,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 20:53:37,475 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2018-02-04 20:53:37,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-04 20:53:37,475 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-02-04 20:53:37,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 20:53:37,476 INFO L225 Difference]: With dead ends: 46 [2018-02-04 20:53:37,476 INFO L226 Difference]: Without dead ends: 46 [2018-02-04 20:53:37,476 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-02-04 20:53:37,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-02-04 20:53:37,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 32. [2018-02-04 20:53:37,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-02-04 20:53:37,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-02-04 20:53:37,479 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 21 [2018-02-04 20:53:37,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 20:53:37,479 INFO L432 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-02-04 20:53:37,479 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-04 20:53:37,479 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-02-04 20:53:37,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-04 20:53:37,480 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 20:53:37,480 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 20:53:37,480 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-04 20:53:37,480 INFO L82 PathProgramCache]: Analyzing trace with hash -252306061, 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 20:53:37,488 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-04 20:53:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 20:53:37,525 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: line 97 column 325: 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:298) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:200) 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 20:53:37,528 INFO L168 Benchmark]: Toolchain (without parser) took 1561.00 ms. Allocated memory was 394.8 MB in the beginning and 588.8 MB in the end (delta: 194.0 MB). Free memory was 352.8 MB in the beginning and 461.8 MB in the end (delta: -109.0 MB). Peak memory consumption was 85.0 MB. Max. memory is 5.3 GB. [2018-02-04 20:53:37,529 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 394.8 MB. Free memory is still 358.1 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 20:53:37,529 INFO L168 Benchmark]: CACSL2BoogieTranslator took 148.54 ms. Allocated memory is still 394.8 MB. Free memory was 351.5 MB in the beginning and 340.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. [2018-02-04 20:53:37,529 INFO L168 Benchmark]: Boogie Preprocessor took 29.50 ms. Allocated memory is still 394.8 MB. Free memory was 340.8 MB in the beginning and 339.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-04 20:53:37,530 INFO L168 Benchmark]: RCFGBuilder took 163.78 ms. Allocated memory is still 394.8 MB. Free memory was 339.5 MB in the beginning and 322.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. [2018-02-04 20:53:37,530 INFO L168 Benchmark]: TraceAbstraction took 1216.58 ms. Allocated memory was 394.8 MB in the beginning and 588.8 MB in the end (delta: 194.0 MB). Free memory was 321.0 MB in the beginning and 461.8 MB in the end (delta: -140.8 MB). Peak memory consumption was 53.1 MB. Max. memory is 5.3 GB. [2018-02-04 20:53:37,532 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 394.8 MB. Free memory is still 358.1 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 148.54 ms. Allocated memory is still 394.8 MB. Free memory was 351.5 MB in the beginning and 340.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 29.50 ms. Allocated memory is still 394.8 MB. Free memory was 340.8 MB in the beginning and 339.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 163.78 ms. Allocated memory is still 394.8 MB. Free memory was 339.5 MB in the beginning and 322.3 MB in the end (delta: 17.2 MB). Peak memory consumption was 17.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1216.58 ms. Allocated memory was 394.8 MB in the beginning and 588.8 MB in the end (delta: 194.0 MB). Free memory was 321.0 MB in the beginning and 461.8 MB in the end (delta: -140.8 MB). Peak memory consumption was 53.1 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: line 97 column 325: theory not supported by interpolation or bad proof de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: line 97 column 325: 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/simple_built_from_end_true-unreach-call_false-valid-memtrack.i_svcomp-DerefFreeMemtrack-32bit-Automizer_z3.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_20-53-37-539.csv Received shutdown request...