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/list-properties/simple_built_from_end_true-unreach-call_false-valid-memtrack.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-26d9e06-m [2018-02-02 11:09:22,660 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-02 11:09:22,661 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-02 11:09:22,673 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-02 11:09:22,674 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-02 11:09:22,674 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-02 11:09:22,675 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-02 11:09:22,677 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-02 11:09:22,678 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-02 11:09:22,679 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-02 11:09:22,680 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-02 11:09:22,680 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-02 11:09:22,680 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-02 11:09:22,681 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-02 11:09:22,682 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-02 11:09:22,684 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-02 11:09:22,685 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-02 11:09:22,687 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-02 11:09:22,688 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-02 11:09:22,689 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-02 11:09:22,690 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-02-02 11:09:22,690 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-02-02 11:09:22,691 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-02-02 11:09:22,691 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-02-02 11:09:22,692 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-02-02 11:09:22,693 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-02-02 11:09:22,693 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-02-02 11:09:22,694 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-02-02 11:09:22,694 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-02-02 11:09:22,694 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-02 11:09:22,694 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-02 11:09:22,694 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 11:09:22,703 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-02 11:09:22,704 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-02 11:09:22,704 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-02 11:09:22,704 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-02 11:09:22,705 INFO L133 SettingsManager]: * Use SBE=true [2018-02-02 11:09:22,705 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-02 11:09:22,705 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-02 11:09:22,705 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-02 11:09:22,705 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-02 11:09:22,705 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-02 11:09:22,705 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-02 11:09:22,705 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-02 11:09:22,705 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-02 11:09:22,706 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-02 11:09:22,706 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-02 11:09:22,706 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-02 11:09:22,706 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-02 11:09:22,706 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-02 11:09:22,706 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-02 11:09:22,706 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-02 11:09:22,706 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-02 11:09:22,706 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-02 11:09:22,707 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-02-02 11:09:22,707 INFO L133 SettingsManager]: * SMT solver=External_Z3InterpolationMode [2018-02-02 11:09:22,707 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 11:09:22,734 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-02 11:09:22,742 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-02 11:09:22,745 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-02 11:09:22,745 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-02 11:09:22,746 INFO L276 PluginConnector]: CDTParser initialized [2018-02-02 11:09:22,746 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/list-properties/simple_built_from_end_true-unreach-call_false-valid-memtrack.i [2018-02-02 11:09:22,859 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-02 11:09:22,860 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-02 11:09:22,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-02 11:09:22,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-02 11:09:22,865 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-02 11:09:22,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 11:09:22" (1/1) ... [2018-02-02 11:09:22,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc5225c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:22, skipping insertion in model container [2018-02-02 11:09:22,868 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 11:09:22" (1/1) ... [2018-02-02 11:09:22,878 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 11:09:22,905 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-02 11:09:22,991 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 11:09:23,004 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-02 11:09:23,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:23 WrapperNode [2018-02-02 11:09:23,011 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-02 11:09:23,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-02 11:09:23,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-02 11:09:23,012 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-02 11:09:23,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:23" (1/1) ... [2018-02-02 11:09:23,024 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:23" (1/1) ... [2018-02-02 11:09:23,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:23" (1/1) ... [2018-02-02 11:09:23,032 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:23" (1/1) ... [2018-02-02 11:09:23,035 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:23" (1/1) ... [2018-02-02 11:09:23,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:23" (1/1) ... [2018-02-02 11:09:23,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:23" (1/1) ... [2018-02-02 11:09:23,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-02 11:09:23,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-02 11:09:23,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-02 11:09:23,041 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-02 11:09:23,042 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:23" (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 11:09:23,081 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-02 11:09:23,081 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-02 11:09:23,081 INFO L136 BoogieDeclarations]: Found implementation of procedure exit [2018-02-02 11:09:23,081 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-02 11:09:23,081 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-02 11:09:23,082 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-02 11:09:23,082 INFO L128 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2018-02-02 11:09:23,082 INFO L128 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2018-02-02 11:09:23,082 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-02 11:09:23,082 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-02 11:09:23,082 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-02 11:09:23,082 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-02-02 11:09:23,082 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-02 11:09:23,082 INFO L128 BoogieDeclarations]: Found specification of procedure malloc [2018-02-02 11:09:23,082 INFO L128 BoogieDeclarations]: Found specification of procedure exit [2018-02-02 11:09:23,082 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-02 11:09:23,082 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-02 11:09:23,082 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-02 11:09:23,199 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-02 11:09:23,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 11:09:23 BoogieIcfgContainer [2018-02-02 11:09:23,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-02 11:09:23,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-02 11:09:23,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-02 11:09:23,203 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-02 11:09:23,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 11:09:22" (1/3) ... [2018-02-02 11:09:23,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0e2c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 11:09:23, skipping insertion in model container [2018-02-02 11:09:23,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 11:09:23" (2/3) ... [2018-02-02 11:09:23,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e0e2c36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 11:09:23, skipping insertion in model container [2018-02-02 11:09:23,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 11:09:23" (3/3) ... [2018-02-02 11:09:23,206 INFO L107 eAbstractionObserver]: Analyzing ICFG simple_built_from_end_true-unreach-call_false-valid-memtrack.i [2018-02-02 11:09:23,211 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-02-02 11:09:23,216 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 9 error locations. [2018-02-02 11:09:23,247 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-02 11:09:23,247 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-02 11:09:23,247 INFO L324 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-02-02 11:09:23,247 INFO L325 AbstractCegarLoop]: Backedges is CANONICAL [2018-02-02 11:09:23,248 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-02 11:09:23,248 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-02 11:09:23,248 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-02 11:09:23,248 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-02 11:09:23,249 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-02 11:09:23,261 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2018-02-02 11:09:23,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-02-02 11:09:23,270 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:09:23,271 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:09:23,271 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-02 11:09:23,275 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 [2018-02-02 11:09:23,285 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:09:23,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:23,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:23,344 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 11:09:23,371 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:09:23,371 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-02-02 11:09:23,372 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:09:23,372 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 11:09:23,372 INFO L182 omatonBuilderFactory]: Interpolants [41#true, 42#false, 46#(and (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|))] [2018-02-02 11:09:23,373 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 11:09:23,373 INFO L409 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-02-02 11:09:23,380 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-02-02 11:09:23,381 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-02-02 11:09:23,383 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2018-02-02 11:09:23,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:09:23,491 INFO L93 Difference]: Finished difference Result 54 states and 57 transitions. [2018-02-02 11:09:23,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-02-02 11:09:23,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-02-02 11:09:23,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:09:23,501 INFO L225 Difference]: With dead ends: 54 [2018-02-02 11:09:23,501 INFO L226 Difference]: Without dead ends: 45 [2018-02-02 11:09:23,503 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 [2018-02-02 11:09:23,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-02-02 11:09:23,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 40. [2018-02-02 11:09:23,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-02-02 11:09:23,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2018-02-02 11:09:23,535 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 9 [2018-02-02 11:09:23,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:09:23,536 INFO L432 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2018-02-02 11:09:23,536 INFO L433 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-02-02 11:09:23,536 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-02-02 11:09:23,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-02-02 11:09:23,537 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:09:23,537 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:09:23,537 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-02 11:09:23,537 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 [2018-02-02 11:09:23,541 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:09:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:23,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:23,581 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 11:09:23,608 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:09:23,608 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-02-02 11:09:23,608 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:09:23,609 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 11:09:23,609 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] [2018-02-02 11:09:23,609 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 11:09:23,610 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-02-02 11:09:23,610 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-02-02 11:09:23,611 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-02-02 11:09:23,611 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 4 states. [2018-02-02 11:09:23,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:09:23,675 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2018-02-02 11:09:23,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-02 11:09:23,676 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2018-02-02 11:09:23,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:09:23,677 INFO L225 Difference]: With dead ends: 46 [2018-02-02 11:09:23,677 INFO L226 Difference]: Without dead ends: 44 [2018-02-02 11:09:23,678 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 [2018-02-02 11:09:23,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-02-02 11:09:23,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 34. [2018-02-02 11:09:23,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-02-02 11:09:23,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2018-02-02 11:09:23,681 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 12 [2018-02-02 11:09:23,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:09:23,682 INFO L432 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2018-02-02 11:09:23,682 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-02-02 11:09:23,682 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2018-02-02 11:09:23,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-02 11:09:23,682 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:09:23,683 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:09:23,683 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-02 11:09:23,683 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 [2018-02-02 11:09:23,686 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:09:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:23,703 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-02 11:09:23,706 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:23,706 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:23,707 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:23,707 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:23,787 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 11:09:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:23,809 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 11:09:23,836 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:09:23,836 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 11:09:23,837 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:09:23,837 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 11:09:23,837 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)|))] [2018-02-02 11:09:23,837 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 11:09:23,837 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 11:09:23,838 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 11:09:23,838 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-02 11:09:23,838 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand 6 states. [2018-02-02 11:09:23,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:09:23,917 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2018-02-02 11:09:23,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 11:09:23,917 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-02-02 11:09:23,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:09:23,918 INFO L225 Difference]: With dead ends: 34 [2018-02-02 11:09:23,918 INFO L226 Difference]: Without dead ends: 34 [2018-02-02 11:09:23,918 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 11:09:23,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-02-02 11:09:23,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2018-02-02 11:09:23,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-02-02 11:09:23,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-02-02 11:09:23,922 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 13 [2018-02-02 11:09:23,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:09:23,922 INFO L432 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-02-02 11:09:23,922 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 11:09:23,922 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-02-02 11:09:23,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-02-02 11:09:23,924 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:09:23,924 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:09:23,925 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-02 11:09:23,925 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 [2018-02-02 11:09:23,929 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:09:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:23,942 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-02 11:09:23,944 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:23,944 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:23,944 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:23,945 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:23,954 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 11:09:23,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:23,979 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 11:09:24,007 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:09:24,007 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 11:09:24,007 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:09:24,007 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 11:09:24,008 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)|))] [2018-02-02 11:09:24,008 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 11:09:24,008 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 11:09:24,008 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 11:09:24,008 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-02 11:09:24,009 INFO L87 Difference]: Start difference. First operand 32 states and 33 transitions. Second operand 6 states. [2018-02-02 11:09:24,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:09:24,093 INFO L93 Difference]: Finished difference Result 32 states and 33 transitions. [2018-02-02 11:09:24,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 11:09:24,094 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-02-02 11:09:24,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:09:24,094 INFO L225 Difference]: With dead ends: 32 [2018-02-02 11:09:24,094 INFO L226 Difference]: Without dead ends: 32 [2018-02-02 11:09:24,095 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=27, Unknown=3, NotChecked=10, Total=56 [2018-02-02 11:09:24,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-02-02 11:09:24,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2018-02-02 11:09:24,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-02-02 11:09:24,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2018-02-02 11:09:24,098 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 13 [2018-02-02 11:09:24,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:09:24,098 INFO L432 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2018-02-02 11:09:24,099 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 11:09:24,099 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2018-02-02 11:09:24,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-02 11:09:24,099 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:09:24,099 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:09:24,099 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-02 11:09:24,099 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) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-02-02 11:09:24,113 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:09:24,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:24,122 WARN L195 Executor]: ExternalInterpolator (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in) stderr output: WARNING: array quantifier [2018-02-02 11:09:24,123 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:24,123 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:24,124 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:24,124 WARN L251 NnfTransformerHelper]: thrown away annotations [(:qid itp)] [2018-02-02 11:09:24,131 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 11:09:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:24,159 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 11:09:24,175 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:09:24,175 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-02 11:09:24,175 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:09:24,175 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 11:09:24,175 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)|))] [2018-02-02 11:09:24,176 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 11:09:24,176 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 11:09:24,176 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 11:09:24,176 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=14, Unknown=1, NotChecked=6, Total=30 [2018-02-02 11:09:24,176 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand 6 states. [2018-02-02 11:09:24,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:09:24,251 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2018-02-02 11:09:24,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 11:09:24,251 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2018-02-02 11:09:24,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:09:24,252 INFO L225 Difference]: With dead ends: 31 [2018-02-02 11:09:24,252 INFO L226 Difference]: Without dead ends: 31 [2018-02-02 11:09:24,252 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 [2018-02-02 11:09:24,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-02-02 11:09:24,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2018-02-02 11:09:24,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2018-02-02 11:09:24,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2018-02-02 11:09:24,255 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 14 [2018-02-02 11:09:24,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:09:24,255 INFO L432 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2018-02-02 11:09:24,255 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 11:09:24,255 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2018-02-02 11:09:24,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-02 11:09:24,256 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:09:24,256 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:09:24,256 INFO L371 AbstractCegarLoop]: === Iteration 6 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-02 11:09:24,256 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 [2018-02-02 11:09:24,260 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:09:24,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:24,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:24,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:09:24,320 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-02 11:09:24,320 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-02 11:09:24,320 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-02-02 11:09:24,320 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 11:09:24,320 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] [2018-02-02 11:09:24,320 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-02 11:09:24,321 INFO L409 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-02-02 11:09:24,321 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-02-02 11:09:24,321 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-02-02 11:09:24,321 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 6 states. [2018-02-02 11:09:24,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-02 11:09:24,396 INFO L93 Difference]: Finished difference Result 46 states and 47 transitions. [2018-02-02 11:09:24,396 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-02-02 11:09:24,396 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 21 [2018-02-02 11:09:24,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-02 11:09:24,397 INFO L225 Difference]: With dead ends: 46 [2018-02-02 11:09:24,397 INFO L226 Difference]: Without dead ends: 46 [2018-02-02 11:09:24,397 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 [2018-02-02 11:09:24,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-02-02 11:09:24,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 32. [2018-02-02 11:09:24,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-02-02 11:09:24,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 33 transitions. [2018-02-02 11:09:24,399 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 33 transitions. Word has length 21 [2018-02-02 11:09:24,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-02 11:09:24,399 INFO L432 AbstractCegarLoop]: Abstraction has 32 states and 33 transitions. [2018-02-02 11:09:24,399 INFO L433 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-02-02 11:09:24,399 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 33 transitions. [2018-02-02 11:09:24,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-02-02 11:09:24,399 INFO L343 BasicCegarLoop]: Found error trace [2018-02-02 11:09:24,399 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-02 11:09:24,399 INFO L371 AbstractCegarLoop]: === Iteration 7 === [mainErr5RequiresViolation, mainErr3RequiresViolation, mainErr1RequiresViolation, mainErr7RequiresViolation, mainErr2RequiresViolation, mainErr4RequiresViolation, mainErr6RequiresViolation, mainErr0RequiresViolation, mainErr8EnsuresViolation]=== [2018-02-02 11:09:24,400 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 [2018-02-02 11:09:24,402 INFO L67 tionRefinementEngine]: Using refinement strategy FixedTraceAbstractionRefinementStrategy [2018-02-02 11:09:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-02 11:09:24,424 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: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 11:09:24,427 INFO L168 Benchmark]: Toolchain (without parser) took 1567.85 ms. Allocated memory was 408.9 MB in the beginning and 617.6 MB in the end (delta: 208.7 MB). Free memory was 367.1 MB in the beginning and 495.9 MB in the end (delta: -128.7 MB). Peak memory consumption was 80.0 MB. Max. memory is 5.3 GB. [2018-02-02 11:09:24,429 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 408.9 MB. Free memory is still 372.4 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-02 11:09:24,429 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.35 ms. Allocated memory is still 408.9 MB. Free memory was 365.8 MB in the beginning and 355.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. [2018-02-02 11:09:24,429 INFO L168 Benchmark]: Boogie Preprocessor took 28.87 ms. Allocated memory is still 408.9 MB. Free memory was 355.2 MB in the beginning and 353.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. [2018-02-02 11:09:24,430 INFO L168 Benchmark]: RCFGBuilder took 159.20 ms. Allocated memory is still 408.9 MB. Free memory was 353.8 MB in the beginning and 337.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB. [2018-02-02 11:09:24,430 INFO L168 Benchmark]: TraceAbstraction took 1226.40 ms. Allocated memory was 408.9 MB in the beginning and 617.6 MB in the end (delta: 208.7 MB). Free memory was 335.9 MB in the beginning and 495.9 MB in the end (delta: -160.0 MB). Peak memory consumption was 48.7 MB. Max. memory is 5.3 GB. [2018-02-02 11:09:24,432 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 408.9 MB. Free memory is still 372.4 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 150.35 ms. Allocated memory is still 408.9 MB. Free memory was 365.8 MB in the beginning and 355.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 28.87 ms. Allocated memory is still 408.9 MB. Free memory was 355.2 MB in the beginning and 353.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 159.20 ms. Allocated memory is still 408.9 MB. Free memory was 353.8 MB in the beginning and 337.2 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1226.40 ms. Allocated memory was 408.9 MB in the beginning and 617.6 MB in the end (delta: 208.7 MB). Free memory was 335.9 MB in the beginning and 495.9 MB in the end (delta: -160.0 MB). Peak memory consumption was 48.7 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-0-2018-02-02_11-09-24-440.csv Received shutdown request...