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/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero3_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1cceb4a [2018-01-29 23:54:37,751 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-01-29 23:54:37,754 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-01-29 23:54:37,766 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-01-29 23:54:37,767 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-01-29 23:54:37,768 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-01-29 23:54:37,769 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-01-29 23:54:37,771 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-01-29 23:54:37,773 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-01-29 23:54:37,774 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-01-29 23:54:37,775 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-01-29 23:54:37,775 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-01-29 23:54:37,776 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-01-29 23:54:37,777 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-01-29 23:54:37,778 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-01-29 23:54:37,780 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-01-29 23:54:37,782 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-01-29 23:54:37,784 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-01-29 23:54:37,786 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-01-29 23:54:37,787 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-01-29 23:54:37,789 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-01-29 23:54:37,790 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-01-29 23:54:37,790 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-01-29 23:54:37,791 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-01-29 23:54:37,792 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-01-29 23:54:37,793 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-01-29 23:54:37,793 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-01-29 23:54:37,794 INFO L177 SettingsManager]: PEA to Boogie provides no preferences, ignoring... [2018-01-29 23:54:37,794 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-01-29 23:54:37,794 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-01-29 23:54:37,795 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-01-29 23:54:37,795 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/eq-bench/svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf [2018-01-29 23:54:37,805 INFO L110 SettingsManager]: Loading preferences was successful [2018-01-29 23:54:37,806 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-01-29 23:54:37,806 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-01-29 23:54:37,807 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-01-29 23:54:37,807 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-01-29 23:54:37,807 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=VPDomain [2018-01-29 23:54:37,807 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-01-29 23:54:37,808 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-01-29 23:54:37,808 INFO L133 SettingsManager]: * sizeof long=4 [2018-01-29 23:54:37,808 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-01-29 23:54:37,809 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-01-29 23:54:37,809 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-01-29 23:54:37,809 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-01-29 23:54:37,809 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-01-29 23:54:37,809 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-01-29 23:54:37,810 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-01-29 23:54:37,810 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-01-29 23:54:37,810 INFO L133 SettingsManager]: * sizeof long double=12 [2018-01-29 23:54:37,810 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-01-29 23:54:37,810 INFO L133 SettingsManager]: * Size of a code block=SingleStatement [2018-01-29 23:54:37,811 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-01-29 23:54:37,811 INFO L133 SettingsManager]: * Add additional assume for each assert=false [2018-01-29 23:54:37,811 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-01-29 23:54:37,811 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-01-29 23:54:37,811 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-01-29 23:54:37,812 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-01-29 23:54:37,812 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-01-29 23:54:37,812 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-01-29 23:54:37,812 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-01-29 23:54:37,812 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-01-29 23:54:37,813 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-01-29 23:54:37,813 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-01-29 23:54:37,814 INFO L131 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2018-01-29 23:54:37,814 INFO L133 SettingsManager]: * TransformationType=HEAP_SEPARATOR [2018-01-29 23:54:37,848 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-01-29 23:54:37,860 INFO L266 ainManager$Toolchain]: [Toolchain 1]: Parser(s) successfully initialized [2018-01-29 23:54:37,864 INFO L222 ainManager$Toolchain]: [Toolchain 1]: Toolchain data selected. [2018-01-29 23:54:37,866 INFO L271 PluginConnector]: Initializing CDTParser... [2018-01-29 23:54:37,867 INFO L276 PluginConnector]: CDTParser initialized [2018-01-29 23:54:37,868 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero3_true-valid-memsafety_true-termination.c [2018-01-29 23:54:38,001 INFO L304 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-01-29 23:54:38,007 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-01-29 23:54:38,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-01-29 23:54:38,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-01-29 23:54:38,014 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-01-29 23:54:38,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 11:54:37" (1/1) ... [2018-01-29 23:54:38,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f92e658 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:54:38, skipping insertion in model container [2018-01-29 23:54:38,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 11:54:37" (1/1) ... [2018-01-29 23:54:38,035 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-29 23:54:38,054 INFO L153 Dispatcher]: Using SV-COMP mode [2018-01-29 23:54:38,159 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-29 23:54:38,171 INFO L450 PostProcessor]: Settings: Checked method=main [2018-01-29 23:54:38,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:54:38 WrapperNode [2018-01-29 23:54:38,175 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-01-29 23:54:38,175 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-01-29 23:54:38,175 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-01-29 23:54:38,175 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-01-29 23:54:38,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:54:38" (1/1) ... [2018-01-29 23:54:38,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:54:38" (1/1) ... [2018-01-29 23:54:38,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:54:38" (1/1) ... [2018-01-29 23:54:38,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:54:38" (1/1) ... [2018-01-29 23:54:38,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:54:38" (1/1) ... [2018-01-29 23:54:38,198 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:54:38" (1/1) ... [2018-01-29 23:54:38,199 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:54:38" (1/1) ... [2018-01-29 23:54:38,200 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-01-29 23:54:38,201 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-01-29 23:54:38,201 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-01-29 23:54:38,201 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-01-29 23:54:38,202 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:54:38" (1/1) ... No working directory specified, using /storage/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 [2018-01-29 23:54:38,250 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-01-29 23:54:38,251 INFO L136 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-01-29 23:54:38,251 INFO L136 BoogieDeclarations]: Found implementation of procedure main [2018-01-29 23:54:38,251 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.free [2018-01-29 23:54:38,251 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-01-29 23:54:38,251 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-01-29 23:54:38,251 INFO L128 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2018-01-29 23:54:38,252 INFO L136 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2018-01-29 23:54:38,252 INFO L128 BoogieDeclarations]: Found specification of procedure memset [2018-01-29 23:54:38,252 INFO L128 BoogieDeclarations]: Found specification of procedure main [2018-01-29 23:54:38,252 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-01-29 23:54:38,252 INFO L128 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-01-29 23:54:38,334 WARN L455 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2018-01-29 23:54:38,390 INFO L257 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-01-29 23:54:38,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 11:54:38 BoogieIcfgContainer [2018-01-29 23:54:38,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-01-29 23:54:38,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-01-29 23:54:38,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-01-29 23:54:38,394 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-01-29 23:54:38,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 11:54:37" (1/3) ... [2018-01-29 23:54:38,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9876fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 11:54:38, skipping insertion in model container [2018-01-29 23:54:38,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 11:54:38" (2/3) ... [2018-01-29 23:54:38,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9876fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 11:54:38, skipping insertion in model container [2018-01-29 23:54:38,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 11:54:38" (3/3) ... [2018-01-29 23:54:38,396 INFO L107 eAbstractionObserver]: Analyzing ICFG memsetNonZero3_true-valid-memsafety_true-termination.c [2018-01-29 23:54:38,403 INFO L128 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-01-29 23:54:38,408 INFO L140 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-01-29 23:54:38,452 INFO L322 AbstractCegarLoop]: Interprodecural is true [2018-01-29 23:54:38,452 INFO L323 AbstractCegarLoop]: Hoare is true [2018-01-29 23:54:38,452 INFO L324 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-01-29 23:54:38,452 INFO L325 AbstractCegarLoop]: Backedges is TWOTRACK [2018-01-29 23:54:38,452 INFO L326 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-01-29 23:54:38,453 INFO L327 AbstractCegarLoop]: Difference is false [2018-01-29 23:54:38,453 INFO L328 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-01-29 23:54:38,453 INFO L333 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-01-29 23:54:38,454 INFO L87 2NestedWordAutomaton]: Mode: main mode - execution starts in main procedure [2018-01-29 23:54:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-01-29 23:54:38,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-01-29 23:54:38,475 INFO L342 BasicCegarLoop]: Found error trace [2018-01-29 23:54:38,476 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-29 23:54:38,476 INFO L371 AbstractCegarLoop]: === Iteration 1 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-29 23:54:38,480 INFO L82 PathProgramCache]: Analyzing trace with hash 1204970025, now seen corresponding path program 1 times [2018-01-29 23:54:38,481 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-29 23:54:38,482 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-29 23:54:38,524 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:54:38,524 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-29 23:54:38,524 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:54:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-29 23:54:38,582 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-29 23:54:38,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-29 23:54:38,652 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-29 23:54:38,652 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-29 23:54:38,654 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-29 23:54:38,670 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-29 23:54:38,671 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-29 23:54:38,674 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 4 states. [2018-01-29 23:54:38,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-29 23:54:38,778 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2018-01-29 23:54:38,799 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-29 23:54:38,801 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-01-29 23:54:38,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-29 23:54:38,809 INFO L225 Difference]: With dead ends: 28 [2018-01-29 23:54:38,809 INFO L226 Difference]: Without dead ends: 24 [2018-01-29 23:54:38,812 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-29 23:54:38,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-01-29 23:54:38,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-01-29 23:54:38,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-01-29 23:54:38,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-01-29 23:54:38,905 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 10 [2018-01-29 23:54:38,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-29 23:54:38,905 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-01-29 23:54:38,905 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-29 23:54:38,906 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-01-29 23:54:38,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-01-29 23:54:38,906 INFO L342 BasicCegarLoop]: Found error trace [2018-01-29 23:54:38,906 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-29 23:54:38,906 INFO L371 AbstractCegarLoop]: === Iteration 2 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-29 23:54:38,906 INFO L82 PathProgramCache]: Analyzing trace with hash 1204970026, now seen corresponding path program 1 times [2018-01-29 23:54:38,906 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-29 23:54:38,907 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-29 23:54:38,907 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:54:38,908 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-29 23:54:38,908 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:54:38,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-29 23:54:38,923 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-29 23:54:39,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-29 23:54:39,008 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-29 23:54:39,008 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-01-29 23:54:39,010 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-29 23:54:39,010 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-29 23:54:39,010 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-29 23:54:39,010 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 4 states. [2018-01-29 23:54:39,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-29 23:54:39,064 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2018-01-29 23:54:39,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-29 23:54:39,065 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-01-29 23:54:39,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-29 23:54:39,066 INFO L225 Difference]: With dead ends: 24 [2018-01-29 23:54:39,066 INFO L226 Difference]: Without dead ends: 23 [2018-01-29 23:54:39,067 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-29 23:54:39,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-01-29 23:54:39,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-01-29 23:54:39,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-01-29 23:54:39,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2018-01-29 23:54:39,072 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 10 [2018-01-29 23:54:39,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-29 23:54:39,072 INFO L432 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2018-01-29 23:54:39,072 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-29 23:54:39,073 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2018-01-29 23:54:39,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-01-29 23:54:39,073 INFO L342 BasicCegarLoop]: Found error trace [2018-01-29 23:54:39,074 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-29 23:54:39,074 INFO L371 AbstractCegarLoop]: === Iteration 3 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-29 23:54:39,074 INFO L82 PathProgramCache]: Analyzing trace with hash -658445592, now seen corresponding path program 1 times [2018-01-29 23:54:39,074 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-29 23:54:39,074 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-29 23:54:39,075 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:54:39,076 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-29 23:54:39,076 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:54:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-29 23:54:39,093 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-29 23:54:39,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-29 23:54:39,150 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-01-29 23:54:39,150 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-01-29 23:54:39,150 INFO L409 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-01-29 23:54:39,150 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-01-29 23:54:39,151 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-01-29 23:54:39,151 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 4 states. [2018-01-29 23:54:39,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-29 23:54:39,222 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2018-01-29 23:54:39,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-01-29 23:54:39,222 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-01-29 23:54:39,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-29 23:54:39,223 INFO L225 Difference]: With dead ends: 33 [2018-01-29 23:54:39,223 INFO L226 Difference]: Without dead ends: 25 [2018-01-29 23:54:39,224 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-01-29 23:54:39,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-01-29 23:54:39,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 24. [2018-01-29 23:54:39,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-01-29 23:54:39,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2018-01-29 23:54:39,229 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 21 [2018-01-29 23:54:39,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-29 23:54:39,230 INFO L432 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2018-01-29 23:54:39,230 INFO L433 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-01-29 23:54:39,230 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2018-01-29 23:54:39,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-01-29 23:54:39,231 INFO L342 BasicCegarLoop]: Found error trace [2018-01-29 23:54:39,231 INFO L350 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-29 23:54:39,231 INFO L371 AbstractCegarLoop]: === Iteration 4 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-29 23:54:39,232 INFO L82 PathProgramCache]: Analyzing trace with hash 623074121, now seen corresponding path program 1 times [2018-01-29 23:54:39,232 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-29 23:54:39,232 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-29 23:54:39,233 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:54:39,233 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-29 23:54:39,233 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:54:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-29 23:54:39,252 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-29 23:54:39,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-29 23:54:39,308 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-29 23:54:39,308 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-29 23:54:39,314 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-29 23:54:39,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-29 23:54:39,343 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-29 23:54:39,411 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-29 23:54:39,448 INFO L320 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-01-29 23:54:39,448 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2018-01-29 23:54:39,448 INFO L409 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-01-29 23:54:39,449 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-01-29 23:54:39,449 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-01-29 23:54:39,449 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 8 states. [2018-01-29 23:54:39,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-29 23:54:39,508 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2018-01-29 23:54:39,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-01-29 23:54:39,508 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2018-01-29 23:54:39,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-29 23:54:39,509 INFO L225 Difference]: With dead ends: 35 [2018-01-29 23:54:39,509 INFO L226 Difference]: Without dead ends: 27 [2018-01-29 23:54:39,509 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2018-01-29 23:54:39,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2018-01-29 23:54:39,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2018-01-29 23:54:39,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-01-29 23:54:39,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2018-01-29 23:54:39,513 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 23 [2018-01-29 23:54:39,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-29 23:54:39,513 INFO L432 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2018-01-29 23:54:39,513 INFO L433 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-01-29 23:54:39,513 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2018-01-29 23:54:39,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-01-29 23:54:39,514 INFO L342 BasicCegarLoop]: Found error trace [2018-01-29 23:54:39,514 INFO L350 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-01-29 23:54:39,514 INFO L371 AbstractCegarLoop]: === Iteration 5 === [mainErr1RequiresViolation, mainErr2EnsuresViolation, mainErr0RequiresViolation]=== [2018-01-29 23:54:39,514 INFO L82 PathProgramCache]: Analyzing trace with hash -492095638, now seen corresponding path program 2 times [2018-01-29 23:54:39,514 INFO L209 onRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-01-29 23:54:39,515 INFO L67 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-01-29 23:54:39,515 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:54:39,515 INFO L101 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-01-29 23:54:39,515 INFO L117 rtionOrderModulation]: Craig nested/tree interpolation forces the following order [2018-01-29 23:54:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-01-29 23:54:39,526 WARN L137 erpolLogProxyWrapper]: Using partial proofs (cut at CNF-level). Set option :produce-proofs to true to get complete proofs. [2018-01-29 23:54:39,587 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-01-29 23:54:39,587 INFO L308 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-01-29 23:54:39,587 INFO L209 onRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-01-29 23:54:39,601 INFO L101 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-01-29 23:54:39,614 INFO L201 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued a check-sat command [2018-01-29 23:54:39,627 INFO L239 tOrderPrioritization]: Conjunction of SSA is unsat [2018-01-29 23:54:39,630 INFO L270 TraceCheckSpWp]: Computing forward predicates... [2018-01-29 23:54:39,698 INFO L700 Elim1Store]: detected not equals via solver [2018-01-29 23:54:39,704 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 5 [2018-01-29 23:54:39,705 INFO L267 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2018-01-29 23:54:39,706 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-01-29 23:54:39,707 INFO L202 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:12, output treesize:5 [2018-01-29 23:54:39,738 WARN L1033 $PredicateComparison]: unable to prove that (exists ((|main_~#cstats~2.base| Int)) (and (= (select |c_old(#valid)| |main_~#cstats~2.base|) 0) (= |c_#valid| (store |c_old(#valid)| |main_~#cstats~2.base| 0)))) is different from true [2018-01-29 23:54:39,744 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-01-29 23:54:39,764 INFO L320 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-01-29 23:54:39,765 INFO L335 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2018-01-29 23:54:39,765 INFO L409 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-01-29 23:54:39,765 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-01-29 23:54:39,765 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=52, Unknown=1, NotChecked=14, Total=90 [2018-01-29 23:54:39,766 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand 10 states. [2018-01-29 23:54:39,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-01-29 23:54:39,973 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2018-01-29 23:54:39,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-01-29 23:54:39,974 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2018-01-29 23:54:39,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-01-29 23:54:39,974 INFO L225 Difference]: With dead ends: 36 [2018-01-29 23:54:39,974 INFO L226 Difference]: Without dead ends: 0 [2018-01-29 23:54:39,975 INFO L553 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=149, Unknown=1, NotChecked=26, Total=240 [2018-01-29 23:54:39,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-01-29 23:54:39,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-01-29 23:54:39,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-01-29 23:54:39,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-01-29 23:54:39,976 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2018-01-29 23:54:39,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-01-29 23:54:39,976 INFO L432 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-01-29 23:54:39,977 INFO L433 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-01-29 23:54:39,977 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-01-29 23:54:39,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-01-29 23:54:39,981 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-01-29 23:54:40,065 INFO L399 ceAbstractionStarter]: For program point L1(lines 1 31) no Hoare annotation was computed. [2018-01-29 23:54:40,065 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(lines 1 31) no Hoare annotation was computed. [2018-01-29 23:54:40,066 INFO L395 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(lines 1 31) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-29 23:54:40,066 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(lines 1 31) no Hoare annotation was computed. [2018-01-29 23:54:40,066 INFO L402 ceAbstractionStarter]: At program point #Ultimate.C_memsetENTRY(line -1) the Hoare annotation is: true [2018-01-29 23:54:40,066 INFO L399 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-01-29 23:54:40,066 INFO L399 ceAbstractionStarter]: For program point L-1'(line -1) no Hoare annotation was computed. [2018-01-29 23:54:40,066 INFO L402 ceAbstractionStarter]: At program point L-1''(line -1) the Hoare annotation is: true [2018-01-29 23:54:40,066 INFO L399 ceAbstractionStarter]: For program point #Ultimate.C_memsetFINAL(line -1) no Hoare annotation was computed. [2018-01-29 23:54:40,067 INFO L399 ceAbstractionStarter]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2018-01-29 23:54:40,067 INFO L399 ceAbstractionStarter]: For program point #Ultimate.C_memsetEXIT(line -1) no Hoare annotation was computed. [2018-01-29 23:54:40,067 INFO L402 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 1 31) the Hoare annotation is: true [2018-01-29 23:54:40,067 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 1 31) no Hoare annotation was computed. [2018-01-29 23:54:40,067 INFO L402 ceAbstractionStarter]: At program point L1(lines 1 31) the Hoare annotation is: true [2018-01-29 23:54:40,067 INFO L399 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(lines 1 31) no Hoare annotation was computed. [2018-01-29 23:54:40,067 INFO L399 ceAbstractionStarter]: For program point mainErr1RequiresViolation(line -1) no Hoare annotation was computed. [2018-01-29 23:54:40,067 INFO L399 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2018-01-29 23:54:40,068 INFO L399 ceAbstractionStarter]: For program point mainFINAL(lines 25 31) no Hoare annotation was computed. [2018-01-29 23:54:40,068 INFO L399 ceAbstractionStarter]: For program point mainErr2EnsuresViolation(lines 25 31) no Hoare annotation was computed. [2018-01-29 23:54:40,068 INFO L399 ceAbstractionStarter]: For program point mainErr0RequiresViolation(line -1) no Hoare annotation was computed. [2018-01-29 23:54:40,068 INFO L399 ceAbstractionStarter]: For program point mainEXIT(lines 25 31) no Hoare annotation was computed. [2018-01-29 23:54:40,068 INFO L395 ceAbstractionStarter]: At program point mainENTRY(lines 25 31) the Hoare annotation is: (= |#valid| |old(#valid)|) [2018-01-29 23:54:40,068 INFO L399 ceAbstractionStarter]: For program point L26(line 26) no Hoare annotation was computed. [2018-01-29 23:54:40,068 INFO L395 ceAbstractionStarter]: At program point L29(line 29) the Hoare annotation is: (and (= 0 |main_~#cstats~2.offset|) (= 1 (select |#valid| main_~point~2.base)) (= |#valid| (store |old(#valid)| |main_~#cstats~2.base| 1)) (= (select |old(#valid)| |main_~#cstats~2.base|) 0) (= 80 (select |#length| |main_~#cstats~2.base|)) (= (select |#length| main_~point~2.base) 80) (= main_~point~2.offset 0)) [2018-01-29 23:54:40,069 INFO L399 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-01-29 23:54:40,069 INFO L399 ceAbstractionStarter]: For program point L26'(line 26) no Hoare annotation was computed. [2018-01-29 23:54:40,069 INFO L399 ceAbstractionStarter]: For program point L26''(line 26) no Hoare annotation was computed. [2018-01-29 23:54:40,069 INFO L399 ceAbstractionStarter]: For program point L29'(line 29) no Hoare annotation was computed. [2018-01-29 23:54:40,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 11:54:40 BoogieIcfgContainer [2018-01-29 23:54:40,075 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-01-29 23:54:40,076 INFO L168 Benchmark]: Toolchain (without parser) took 2074.89 ms. Allocated memory was 304.1 MB in the beginning and 464.0 MB in the end (delta: 159.9 MB). Free memory was 265.0 MB in the beginning and 335.2 MB in the end (delta: -70.3 MB). Peak memory consumption was 89.6 MB. Max. memory is 5.3 GB. [2018-01-29 23:54:40,078 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 304.1 MB. Free memory is still 268.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-29 23:54:40,078 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.86 ms. Allocated memory is still 304.1 MB. Free memory was 263.0 MB in the beginning and 254.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. [2018-01-29 23:54:40,078 INFO L168 Benchmark]: Boogie Preprocessor took 24.91 ms. Allocated memory is still 304.1 MB. Free memory is still 254.9 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-01-29 23:54:40,078 INFO L168 Benchmark]: RCFGBuilder took 190.04 ms. Allocated memory is still 304.1 MB. Free memory was 254.9 MB in the beginning and 240.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. [2018-01-29 23:54:40,079 INFO L168 Benchmark]: TraceAbstraction took 1684.30 ms. Allocated memory was 304.1 MB in the beginning and 464.0 MB in the end (delta: 159.9 MB). Free memory was 240.0 MB in the beginning and 335.2 MB in the end (delta: -95.3 MB). Peak memory consumption was 64.6 MB. Max. memory is 5.3 GB. [2018-01-29 23:54:40,080 INFO L344 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 304.1 MB. Free memory is still 268.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 166.86 ms. Allocated memory is still 304.1 MB. Free memory was 263.0 MB in the beginning and 254.9 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 24.91 ms. Allocated memory is still 304.1 MB. Free memory is still 254.9 MB. There was no memory consumed. Max. memory is 5.3 GB. * RCFGBuilder took 190.04 ms. Allocated memory is still 304.1 MB. Free memory was 254.9 MB in the beginning and 240.0 MB in the end (delta: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 5.3 GB. * TraceAbstraction took 1684.30 ms. Allocated memory was 304.1 MB in the beginning and 464.0 MB in the end (delta: 159.9 MB). Free memory was 240.0 MB in the beginning and 335.2 MB in the end (delta: -95.3 MB). Peak memory consumption was 64.6 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 25]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 28 locations, 3 error locations. SAFE Result, 1.6s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 SDtfs, 49 SDslu, 186 SDs, 0 SdLazy, 122 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 10 NumberOfFragments, 43 HoareAnnotationTreeSize, 7 FomulaSimplifications, 53 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 137 NumberOfCodeBlocks, 133 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 130 ConstructedInterpolants, 12 QuantifiedInterpolants, 7912 SizeOfPredicates, 2 NumberOfNonLiveVariables, 139 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 4/10 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero3_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-Benchmark-0-2018-01-29_23-54-40-089.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/memsetNonZero3_true-valid-memsafety_true-termination.c_svcomp-DerefFreeMemtrack-32bit-Automizer_Camel+AI_EQ_SS.epf_AutomizerC.xml/Csv-TraceAbstractionBenchmarks-0-2018-01-29_23-54-40-089.csv Received shutdown request...