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_SmtInterpol_NoArray.epf -i ../../../trunk/examples/svcomp/array-memsafety/stroeder1-alloca_true-valid-memsafety_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ccafca9-m [2018-02-04 04:04:04,630 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-02-04 04:04:04,631 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-02-04 04:04:04,643 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-02-04 04:04:04,643 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-02-04 04:04:04,644 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-02-04 04:04:04,645 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-02-04 04:04:04,646 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-02-04 04:04:04,647 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-02-04 04:04:04,647 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-02-04 04:04:04,648 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-02-04 04:04:04,648 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-02-04 04:04:04,649 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-02-04 04:04:04,650 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-02-04 04:04:04,650 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-02-04 04:04:04,652 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-02-04 04:04:04,654 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-02-04 04:04:04,655 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-02-04 04:04:04,656 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-02-04 04:04:04,657 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-02-04 04:04:04,659 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-02-04 04:04:04,663 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-02-04 04:04:04,664 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-02-04 04:04:04,664 INFO L98 SettingsManager]: Beginning loading settings from /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/cade18-smtinterpol/svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf [2018-02-04 04:04:04,674 INFO L110 SettingsManager]: Loading preferences was successful [2018-02-04 04:04:04,674 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-02-04 04:04:04,675 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-02-04 04:04:04,675 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-02-04 04:04:04,675 INFO L133 SettingsManager]: * Use SBE=true [2018-02-04 04:04:04,676 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-02-04 04:04:04,676 INFO L133 SettingsManager]: * sizeof long=4 [2018-02-04 04:04:04,676 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-02-04 04:04:04,676 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-02-04 04:04:04,676 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-02-04 04:04:04,676 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-02-04 04:04:04,677 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-02-04 04:04:04,677 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-02-04 04:04:04,677 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-02-04 04:04:04,677 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-02-04 04:04:04,677 INFO L133 SettingsManager]: * sizeof long double=12 [2018-02-04 04:04:04,677 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-02-04 04:04:04,678 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-02-04 04:04:04,678 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-02-04 04:04:04,678 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-02-04 04:04:04,678 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:04:04,678 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-02-04 04:04:04,678 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-02-04 04:04:04,678 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-02-04 04:04:04,679 INFO L133 SettingsManager]: * Trace refinement strategy=SMTINTERPOL [2018-02-04 04:04:04,707 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-02-04 04:04:04,719 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-02-04 04:04:04,722 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-02-04 04:04:04,723 INFO L271 PluginConnector]: Initializing CDTParser... [2018-02-04 04:04:04,723 INFO L276 PluginConnector]: CDTParser initialized [2018-02-04 04:04:04,724 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-memsafety/stroeder1-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:04:04,871 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-02-04 04:04:04,872 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-02-04 04:04:04,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-02-04 04:04:04,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-02-04 04:04:04,879 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-02-04 04:04:04,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:04:04" (1/1) ... [2018-02-04 04:04:04,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22d68180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:04, skipping insertion in model container [2018-02-04 04:04:04,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.02 04:04:04" (1/1) ... [2018-02-04 04:04:04,898 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:04:04,927 INFO L153 Dispatcher]: Using SV-COMP mode [2018-02-04 04:04:05,013 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:04:05,024 INFO L450 PostProcessor]: Settings: Checked method=main [2018-02-04 04:04:05,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:05 WrapperNode [2018-02-04 04:04:05,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-02-04 04:04:05,030 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-02-04 04:04:05,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-02-04 04:04:05,030 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-02-04 04:04:05,038 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:05" (1/1) ... [2018-02-04 04:04:05,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:05" (1/1) ... [2018-02-04 04:04:05,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:05" (1/1) ... [2018-02-04 04:04:05,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:05" (1/1) ... [2018-02-04 04:04:05,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:05" (1/1) ... [2018-02-04 04:04:05,051 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:05" (1/1) ... [2018-02-04 04:04:05,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:05" (1/1) ... [2018-02-04 04:04:05,052 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-02-04 04:04:05,053 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-02-04 04:04:05,053 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-02-04 04:04:05,053 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-02-04 04:04:05,053 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:05" (1/1) ... No working directory specified, using /home/ultimate/work/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-02-04 04:04:05,088 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-02-04 04:04:05,088 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-02-04 04:04:05,088 INFO L136 BoogieDeclarations]: Found implementation of procedure sumOfThirdBytes [2018-02-04 04:04:05,088 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-02-04 04:04:05,088 INFO L128 BoogieDeclarations]: Found specification of procedure write~int [2018-02-04 04:04:05,088 INFO L128 BoogieDeclarations]: Found specification of procedure read~int [2018-02-04 04:04:05,088 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-02-04 04:04:05,088 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-02-04 04:04:05,089 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-02-04 04:04:05,089 INFO L128 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-02-04 04:04:05,089 INFO L128 BoogieDeclarations]: Found specification of procedure sumOfThirdBytes [2018-02-04 04:04:05,089 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-02-04 04:04:05,089 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-02-04 04:04:05,089 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-02-04 04:04:05,188 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-02-04 04:04:05,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:04:05 BoogieIcfgContainer [2018-02-04 04:04:05,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-02-04 04:04:05,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-02-04 04:04:05,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-02-04 04:04:05,191 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-02-04 04:04:05,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.02 04:04:04" (1/3) ... [2018-02-04 04:04:05,192 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a9618d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:04:05, skipping insertion in model container [2018-02-04 04:04:05,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.02 04:04:05" (2/3) ... [2018-02-04 04:04:05,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42a9618d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.02 04:04:05, skipping insertion in model container [2018-02-04 04:04:05,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.02 04:04:05" (3/3) ... [2018-02-04 04:04:05,194 INFO L107 eAbstractionObserver]: Analyzing ICFG stroeder1-alloca_true-valid-memsafety_true-termination.i [2018-02-04 04:04:05,200 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-02-04 04:04:05,204 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-02-04 04:04:05,233 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-02-04 04:04:05,233 INFO L323 AbstractCegarLoop]: Hoare is false [2018-02-04 04:04:05,234 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-02-04 04:04:05,234 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-02-04 04:04:05,234 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-02-04 04:04:05,234 INFO L327 AbstractCegarLoop]: Difference is false [2018-02-04 04:04:05,234 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-02-04 04:04:05,234 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-02-04 04:04:05,235 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-02-04 04:04:05,242 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-02-04 04:04:05,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:04:05,250 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:04:05,251 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:04:05,251 INFO L371 AbstractCegarLoop]: === Iteration 1 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:04:05,256 INFO L82 PathProgramCache]: Analyzing trace with hash -443509723, now seen corresponding path program 1 times [2018-02-04 04:04:05,257 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:04:05,257 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:04:05,289 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:05,289 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:04:05,289 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:05,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:04:05,330 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:04:05,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:04:05,428 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:04:05,428 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:04:05,430 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:04:05,442 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:04:05,442 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:04:05,444 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 7 states. [2018-02-04 04:04:05,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:04:05,584 INFO L93 Difference]: Finished difference Result 33 states and 35 transitions. [2018-02-04 04:04:05,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-02-04 04:04:05,585 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-02-04 04:04:05,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:04:05,638 INFO L225 Difference]: With dead ends: 33 [2018-02-04 04:04:05,639 INFO L226 Difference]: Without dead ends: 30 [2018-02-04 04:04:05,640 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-02-04 04:04:05,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-02-04 04:04:05,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 25. [2018-02-04 04:04:05,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-02-04 04:04:05,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-02-04 04:04:05,665 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 14 [2018-02-04 04:04:05,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:04:05,666 INFO L432 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-02-04 04:04:05,666 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:04:05,666 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-02-04 04:04:05,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-02-04 04:04:05,666 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:04:05,666 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:04:05,667 INFO L371 AbstractCegarLoop]: === Iteration 2 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:04:05,667 INFO L82 PathProgramCache]: Analyzing trace with hash -443509722, now seen corresponding path program 1 times [2018-02-04 04:04:05,667 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:04:05,667 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:04:05,668 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:05,668 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:04:05,668 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:04:05,685 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:04:05,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:04:05,784 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:04:05,784 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-02-04 04:04:05,786 INFO L409 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-02-04 04:04:05,786 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-02-04 04:04:05,786 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-02-04 04:04:05,786 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 7 states. [2018-02-04 04:04:05,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:04:05,912 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2018-02-04 04:04:05,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-02-04 04:04:05,913 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-02-04 04:04:05,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:04:05,914 INFO L225 Difference]: With dead ends: 38 [2018-02-04 04:04:05,914 INFO L226 Difference]: Without dead ends: 38 [2018-02-04 04:04:05,915 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2018-02-04 04:04:05,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2018-02-04 04:04:05,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2018-02-04 04:04:05,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-02-04 04:04:05,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2018-02-04 04:04:05,919 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 14 [2018-02-04 04:04:05,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:04:05,919 INFO L432 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2018-02-04 04:04:05,920 INFO L433 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-02-04 04:04:05,920 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-02-04 04:04:05,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:04:05,920 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:04:05,921 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:04:05,921 INFO L371 AbstractCegarLoop]: === Iteration 3 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:04:05,921 INFO L82 PathProgramCache]: Analyzing trace with hash -537553629, now seen corresponding path program 1 times [2018-02-04 04:04:05,921 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:04:05,921 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:04:05,922 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:05,922 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:04:05,922 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:05,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:04:05,935 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:04:06,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:04:06,019 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 04:04:06,019 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 04:04:06,020 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:04:06,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:04:06,046 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 04:04:06,089 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 04:04:06,090 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-02-04 04:04:06,090 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 13 [2018-02-04 04:04:06,090 INFO L409 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-02-04 04:04:06,091 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-02-04 04:04:06,091 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2018-02-04 04:04:06,091 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 13 states. [2018-02-04 04:04:06,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:04:06,246 INFO L93 Difference]: Finished difference Result 50 states and 52 transitions. [2018-02-04 04:04:06,246 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-02-04 04:04:06,247 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2018-02-04 04:04:06,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:04:06,247 INFO L225 Difference]: With dead ends: 50 [2018-02-04 04:04:06,248 INFO L226 Difference]: Without dead ends: 50 [2018-02-04 04:04:06,248 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2018-02-04 04:04:06,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-02-04 04:04:06,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 42. [2018-02-04 04:04:06,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-02-04 04:04:06,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2018-02-04 04:04:06,252 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 19 [2018-02-04 04:04:06,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:04:06,252 INFO L432 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2018-02-04 04:04:06,253 INFO L433 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-02-04 04:04:06,253 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2018-02-04 04:04:06,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-02-04 04:04:06,253 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:04:06,253 INFO L351 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:04:06,253 INFO L371 AbstractCegarLoop]: === Iteration 4 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:04:06,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1124359643, now seen corresponding path program 1 times [2018-02-04 04:04:06,254 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:04:06,254 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:04:06,254 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:06,254 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:04:06,255 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:04:06,276 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:04:06,414 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:04:06,414 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-02-04 04:04:06,414 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_FP [2018-02-04 04:04:06,414 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:04:06,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:04:06,429 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-02-04 04:04:06,447 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2018-02-04 04:04:06,448 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-02-04 04:04:06,451 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-02-04 04:04:06,452 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:12, output treesize:11 [2018-02-04 04:04:06,634 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:04:06,635 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-02-04 04:04:06,635 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 17 [2018-02-04 04:04:06,635 INFO L409 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-02-04 04:04:06,635 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-02-04 04:04:06,635 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2018-02-04 04:04:06,636 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand 18 states. [2018-02-04 04:04:06,960 WARN L146 SmtUtils]: Spent 117ms on a formula simplification. DAG size of input: 47 DAG size of output 39 [2018-02-04 04:04:07,607 WARN L146 SmtUtils]: Spent 616ms on a formula simplification. DAG size of input: 58 DAG size of output 46 [2018-02-04 04:04:07,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:04:07,646 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2018-02-04 04:04:07,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-02-04 04:04:07,647 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 19 [2018-02-04 04:04:07,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:04:07,648 INFO L225 Difference]: With dead ends: 54 [2018-02-04 04:04:07,648 INFO L226 Difference]: Without dead ends: 54 [2018-02-04 04:04:07,649 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=108, Invalid=444, Unknown=0, NotChecked=0, Total=552 [2018-02-04 04:04:07,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2018-02-04 04:04:07,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 38. [2018-02-04 04:04:07,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2018-02-04 04:04:07,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 40 transitions. [2018-02-04 04:04:07,653 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 40 transitions. Word has length 19 [2018-02-04 04:04:07,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:04:07,654 INFO L432 AbstractCegarLoop]: Abstraction has 38 states and 40 transitions. [2018-02-04 04:04:07,654 INFO L433 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-02-04 04:04:07,654 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 40 transitions. [2018-02-04 04:04:07,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-02-04 04:04:07,654 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:04:07,659 INFO L351 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:04:07,659 INFO L371 AbstractCegarLoop]: === Iteration 5 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:04:07,659 INFO L82 PathProgramCache]: Analyzing trace with hash 950757514, now seen corresponding path program 1 times [2018-02-04 04:04:07,659 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:04:07,660 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:04:07,660 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:07,661 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:04:07,661 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:07,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:04:07,668 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:04:07,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-02-04 04:04:07,697 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-02-04 04:04:07,697 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-02-04 04:04:07,698 INFO L409 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-02-04 04:04:07,698 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-02-04 04:04:07,698 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-02-04 04:04:07,698 INFO L87 Difference]: Start difference. First operand 38 states and 40 transitions. Second operand 5 states. [2018-02-04 04:04:07,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-02-04 04:04:07,725 INFO L93 Difference]: Finished difference Result 49 states and 50 transitions. [2018-02-04 04:04:07,726 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-02-04 04:04:07,727 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 20 [2018-02-04 04:04:07,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-02-04 04:04:07,728 INFO L225 Difference]: With dead ends: 49 [2018-02-04 04:04:07,728 INFO L226 Difference]: Without dead ends: 43 [2018-02-04 04:04:07,728 INFO L554 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-02-04 04:04:07,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-02-04 04:04:07,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 40. [2018-02-04 04:04:07,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-02-04 04:04:07,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 41 transitions. [2018-02-04 04:04:07,732 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 41 transitions. Word has length 20 [2018-02-04 04:04:07,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-02-04 04:04:07,732 INFO L432 AbstractCegarLoop]: Abstraction has 40 states and 41 transitions. [2018-02-04 04:04:07,732 INFO L433 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-02-04 04:04:07,732 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 41 transitions. [2018-02-04 04:04:07,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-02-04 04:04:07,733 INFO L343 BasicCegarLoop]: Found error trace [2018-02-04 04:04:07,733 INFO L351 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-02-04 04:04:07,733 INFO L371 AbstractCegarLoop]: === Iteration 6 === [sumOfThirdBytesErr1RequiresViolation, sumOfThirdBytesErr0RequiresViolation, mainErr0EnsuresViolation]=== [2018-02-04 04:04:07,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1524168647, now seen corresponding path program 1 times [2018-02-04 04:04:07,734 INFO L213 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS_NO_ARRAY [2018-02-04 04:04:07,734 INFO L67 tionRefinementEngine]: Using refinement strategy SmtInterpolRefinementStrategy [2018-02-04 04:04:07,734 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:07,735 INFO L109 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-02-04 04:04:07,735 INFO L125 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-02-04 04:04:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-02-04 04:04:07,746 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-02-04 04:04:07,752 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Unknown lemma type! at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.access$1(Interpolator.java:263) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:132) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:220) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:201) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:915) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:281) 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.computeInterpolantsTree(InterpolatingTraceCheckCraig.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:199) 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.MultiTrackTraceAbstractionRefinementStrategy.getTraceCheck(MultiTrackTraceAbstractionRefinementStrategy.java:222) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:231) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:205) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:68) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:397) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:381) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:316) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:147) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:115) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:119) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:324) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.runToolchainDefault(DefaultToolchainJob.java:221) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.BasicToolchainJob.run(BasicToolchainJob.java:134) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-02-04 04:04:07,755 INFO L168 Benchmark]: Toolchain (without parser) took 2883.57 ms. Allocated memory was 403.7 MB in the beginning and 626.5 MB in the end (delta: 222.8 MB). Free memory was 360.4 MB in the beginning and 538.2 MB in the end (delta: -177.8 MB). Peak memory consumption was 45.0 MB. Max. memory is 5.3 GB. [2018-02-04 04:04:07,756 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 403.7 MB. Free memory is still 365.7 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-02-04 04:04:07,756 INFO L168 Benchmark]: CACSL2BoogieTranslator took 156.47 ms. Allocated memory is still 403.7 MB. Free memory was 360.4 MB in the beginning and 349.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:04:07,757 INFO L168 Benchmark]: Boogie Preprocessor took 22.82 ms. Allocated memory is still 403.7 MB. Free memory was 349.8 MB in the beginning and 347.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. [2018-02-04 04:04:07,757 INFO L168 Benchmark]: RCFGBuilder took 136.32 ms. Allocated memory is still 403.7 MB. Free memory was 347.2 MB in the beginning and 332.6 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 5.3 GB. [2018-02-04 04:04:07,757 INFO L168 Benchmark]: TraceAbstraction took 2564.88 ms. Allocated memory was 403.7 MB in the beginning and 626.5 MB in the end (delta: 222.8 MB). Free memory was 332.6 MB in the beginning and 538.2 MB in the end (delta: -205.6 MB). Peak memory consumption was 17.3 MB. Max. memory is 5.3 GB. [2018-02-04 04:04:07,758 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 403.7 MB. Free memory is still 365.7 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 156.47 ms. Allocated memory is still 403.7 MB. Free memory was 360.4 MB in the beginning and 349.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 22.82 ms. Allocated memory is still 403.7 MB. Free memory was 349.8 MB in the beginning and 347.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 5.3 GB. * RCFGBuilder took 136.32 ms. Allocated memory is still 403.7 MB. Free memory was 347.2 MB in the beginning and 332.6 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 5.3 GB. * TraceAbstraction took 2564.88 ms. Allocated memory was 403.7 MB in the beginning and 626.5 MB in the end (delta: 222.8 MB). Free memory was 332.6 MB in the beginning and 538.2 MB in the end (delta: -205.6 MB). Peak memory consumption was 17.3 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Unknown lemma type! de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Unknown lemma type!: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:299) 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/stroeder1-alloca_true-valid-memsafety_true-termination.i_svcomp-DerefFreeMemtrack-32bit-Automizer_SmtInterpol_NoArray.epf_AutomizerC.xml/Csv-Benchmark-0-2018-02-04_04-04-07-765.csv Received shutdown request...