java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --traceabstraction.dump.automata.to.the.following.directory dump --rcfgbuilder.size.of.a.code.block SingleStatement --cacsl2boogietranslator.bitprecise.bitfields false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-memsafety/memset2_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:53:22,993 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:53:22,996 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:53:23,007 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:53:23,008 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:53:23,009 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:53:23,010 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:53:23,012 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:53:23,013 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:53:23,014 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:53:23,015 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:53:23,015 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:53:23,016 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:53:23,017 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:53:23,019 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:53:23,019 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:53:23,020 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:53:23,022 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:53:23,024 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:53:23,026 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:53:23,027 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:53:23,029 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:53:23,031 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:53:23,031 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:53:23,032 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:53:23,033 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:53:23,034 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:53:23,035 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:53:23,035 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:53:23,037 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:53:23,037 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:53:23,038 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 14:53:23,038 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 14:53:23,038 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 14:53:23,039 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 14:53:23,040 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 14:53:23,040 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2018-10-10 14:53:23,063 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:53:23,064 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:53:23,065 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:53:23,065 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:53:23,065 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:53:23,065 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:53:23,066 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:53:23,066 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:53:23,066 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:53:23,066 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:53:23,066 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:53:23,067 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:53:23,067 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:53:23,067 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:53:23,067 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:53:23,067 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:53:23,068 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:53:23,068 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:53:23,068 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:53:23,068 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:53:23,068 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:53:23,068 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:53:23,069 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:53:23,069 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:53:23,069 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:53:23,069 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Dump automata to the following directory -> dump Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Bitprecise bitfields -> false [2018-10-10 14:53:23,118 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:53:23,136 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:53:23,141 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:53:23,143 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:53:23,143 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:53:23,144 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memset2_true-valid-memsafety_true-termination.c [2018-10-10 14:53:23,469 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f81b18b80/1bf6686b8285438c91c24971a9ac2058/FLAGf6ef3ee41 [2018-10-10 14:53:23,691 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:53:23,691 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-memsafety/memset2_true-valid-memsafety_true-termination.c [2018-10-10 14:53:23,700 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f81b18b80/1bf6686b8285438c91c24971a9ac2058/FLAGf6ef3ee41 [2018-10-10 14:53:23,724 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f81b18b80/1bf6686b8285438c91c24971a9ac2058 [2018-10-10 14:53:23,735 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:53:23,736 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:53:23,738 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:53:23,738 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:53:23,742 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:53:23,743 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:53:23" (1/1) ... [2018-10-10 14:53:23,746 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1717a9fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:23, skipping insertion in model container [2018-10-10 14:53:23,746 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:53:23" (1/1) ... [2018-10-10 14:53:23,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:53:23,781 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:53:23,991 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:53:24,002 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:53:24,022 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:53:24,044 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:53:24,044 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:24 WrapperNode [2018-10-10 14:53:24,044 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:53:24,045 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:53:24,045 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:53:24,046 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:53:24,055 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:24" (1/1) ... [2018-10-10 14:53:24,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:24" (1/1) ... [2018-10-10 14:53:24,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:53:24,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:53:24,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:53:24,090 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:53:24,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:24" (1/1) ... [2018-10-10 14:53:24,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:24" (1/1) ... [2018-10-10 14:53:24,107 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:24" (1/1) ... [2018-10-10 14:53:24,107 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:24" (1/1) ... [2018-10-10 14:53:24,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:24" (1/1) ... [2018-10-10 14:53:24,119 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:24" (1/1) ... [2018-10-10 14:53:24,120 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:24" (1/1) ... [2018-10-10 14:53:24,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:53:24,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:53:24,124 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:53:24,124 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:53:24,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:24" (1/1) ... No working directory specified, using /storage/repos/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 [2018-10-10 14:53:24,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:53:24,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:53:24,737 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:53:24,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:53:24 BoogieIcfgContainer [2018-10-10 14:53:24,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:53:24,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:53:24,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:53:24,743 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:53:24,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:53:23" (1/3) ... [2018-10-10 14:53:24,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ebef9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:53:24, skipping insertion in model container [2018-10-10 14:53:24,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:24" (2/3) ... [2018-10-10 14:53:24,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13ebef9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:53:24, skipping insertion in model container [2018-10-10 14:53:24,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:53:24" (3/3) ... [2018-10-10 14:53:24,747 INFO L112 eAbstractionObserver]: Analyzing ICFG memset2_true-valid-memsafety_true-termination.c [2018-10-10 14:53:24,758 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:53:24,767 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-10-10 14:53:24,783 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-10-10 14:53:24,812 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:53:24,813 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:53:24,813 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:53:24,813 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:53:24,814 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:53:24,814 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:53:24,814 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:53:24,814 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:53:24,814 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:53:24,831 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2018-10-10 14:53:24,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-10 14:53:24,840 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:24,841 INFO L375 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] [2018-10-10 14:53:24,844 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:24,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:24,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1867926922, now seen corresponding path program 1 times [2018-10-10 14:53:24,856 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:24,857 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:24,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:24,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:24,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:25,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:25,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:25,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:53:25,102 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-10 14:53:25,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-10 14:53:25,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-10 14:53:25,123 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 5 states. [2018-10-10 14:53:25,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:25,596 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-10-10 14:53:25,597 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 14:53:25,599 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 23 [2018-10-10 14:53:25,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:25,621 INFO L225 Difference]: With dead ends: 51 [2018-10-10 14:53:25,622 INFO L226 Difference]: Without dead ends: 46 [2018-10-10 14:53:25,624 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:25,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2018-10-10 14:53:25,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2018-10-10 14:53:25,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-10-10 14:53:25,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2018-10-10 14:53:25,665 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 23 [2018-10-10 14:53:25,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:25,666 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2018-10-10 14:53:25,666 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-10 14:53:25,667 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2018-10-10 14:53:25,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-10-10 14:53:25,668 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:25,668 INFO L375 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, 1] [2018-10-10 14:53:25,668 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:25,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:25,669 INFO L82 PathProgramCache]: Analyzing trace with hash 2071159790, now seen corresponding path program 1 times [2018-10-10 14:53:25,669 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:25,669 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:25,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:25,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:25,671 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:25,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:25,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:25,923 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:25,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-10 14:53:25,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:53:25,927 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:53:25,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:25,927 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 7 states. [2018-10-10 14:53:26,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:26,217 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2018-10-10 14:53:26,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-10 14:53:26,217 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-10-10 14:53:26,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:26,219 INFO L225 Difference]: With dead ends: 45 [2018-10-10 14:53:26,220 INFO L226 Difference]: Without dead ends: 45 [2018-10-10 14:53:26,221 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2018-10-10 14:53:26,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-10-10 14:53:26,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-10-10 14:53:26,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-10-10 14:53:26,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 45 transitions. [2018-10-10 14:53:26,231 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 45 transitions. Word has length 24 [2018-10-10 14:53:26,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:26,232 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 45 transitions. [2018-10-10 14:53:26,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:53:26,232 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 45 transitions. [2018-10-10 14:53:26,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-10-10 14:53:26,234 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:26,234 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:26,236 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:26,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:26,237 INFO L82 PathProgramCache]: Analyzing trace with hash 2077852439, now seen corresponding path program 1 times [2018-10-10 14:53:26,237 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:26,237 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:26,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:26,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:26,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:26,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:26,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:26,328 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:26,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:53:26,329 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 14:53:26,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 14:53:26,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 14:53:26,329 INFO L87 Difference]: Start difference. First operand 45 states and 45 transitions. Second operand 4 states. [2018-10-10 14:53:26,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:26,368 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-10-10 14:53:26,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 14:53:26,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-10-10 14:53:26,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:26,371 INFO L225 Difference]: With dead ends: 47 [2018-10-10 14:53:26,371 INFO L226 Difference]: Without dead ends: 47 [2018-10-10 14:53:26,372 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 14:53:26,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-10-10 14:53:26,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2018-10-10 14:53:26,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2018-10-10 14:53:26,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2018-10-10 14:53:26,379 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 43 [2018-10-10 14:53:26,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:26,379 INFO L481 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2018-10-10 14:53:26,379 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 14:53:26,380 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2018-10-10 14:53:26,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-10 14:53:26,382 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:26,382 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:26,382 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:26,384 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:26,384 INFO L82 PathProgramCache]: Analyzing trace with hash -714842568, now seen corresponding path program 1 times [2018-10-10 14:53:26,384 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:26,384 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:26,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:26,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:26,389 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:26,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:26,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:26,504 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:26,504 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-10-10 14:53:26,524 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:26,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:26,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:26,683 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:26,706 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:26,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-10-10 14:53:26,740 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/memset2_true-valid-memsafety_true-termination.c_4.bpl [2018-10-10 14:53:26,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:53:26,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:53:26,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:26,745 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand 7 states. [2018-10-10 14:53:27,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:27,065 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-10-10 14:53:27,066 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 14:53:27,066 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 45 [2018-10-10 14:53:27,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:27,067 INFO L225 Difference]: With dead ends: 49 [2018-10-10 14:53:27,068 INFO L226 Difference]: Without dead ends: 49 [2018-10-10 14:53:27,068 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:27,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-10-10 14:53:27,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2018-10-10 14:53:27,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-10 14:53:27,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-10-10 14:53:27,077 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 45 [2018-10-10 14:53:27,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:27,077 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-10-10 14:53:27,077 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:53:27,079 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-10-10 14:53:27,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-10 14:53:27,081 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:27,081 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-10 14:53:27,081 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK]=== [2018-10-10 14:53:27,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:27,084 INFO L82 PathProgramCache]: Analyzing trace with hash -140184295, now seen corresponding path program 2 times [2018-10-10 14:53:27,085 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:27,085 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:27,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:27,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:27,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:27,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:27,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-10 14:53:27,214 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:27,214 INFO L227 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/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 [2018-10-10 14:53:27,230 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-10 14:53:27,258 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-10-10 14:53:27,258 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-10 14:53:27,262 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:27,510 WARN L854 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_ULTIMATE.dealloc_~addr.base Int)) (and (= |c_#valid| (store |c_ULTIMATE.start_main_old_#valid| ULTIMATE.start_ULTIMATE.dealloc_~addr.base 0)) (= (select |c_ULTIMATE.start_main_old_#valid| ULTIMATE.start_ULTIMATE.dealloc_~addr.base) 0))) is different from true [2018-10-10 14:53:27,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-10 14:53:27,568 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-10 14:53:27,569 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 14 [2018-10-10 14:53:27,569 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 14:53:27,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 14:53:27,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=129, Unknown=1, NotChecked=22, Total=182 [2018-10-10 14:53:27,573 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 14 states. [2018-10-10 14:53:28,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:28,577 INFO L93 Difference]: Finished difference Result 50 states and 50 transitions. [2018-10-10 14:53:28,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-10 14:53:28,577 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 47 [2018-10-10 14:53:28,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:28,578 INFO L225 Difference]: With dead ends: 50 [2018-10-10 14:53:28,578 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 14:53:28,579 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=145, Invalid=458, Unknown=1, NotChecked=46, Total=650 [2018-10-10 14:53:28,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 14:53:28,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 14:53:28,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 14:53:28,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 14:53:28,580 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2018-10-10 14:53:28,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:28,580 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 14:53:28,580 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 14:53:28,580 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 14:53:28,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 14:53:28,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:53:28 BoogieIcfgContainer [2018-10-10 14:53:28,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:53:28,586 INFO L168 Benchmark]: Toolchain (without parser) took 4851.10 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.7 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -526.1 MB). Peak memory consumption was 189.5 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:28,589 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:28,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 307.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:28,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.09 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:28,591 INFO L168 Benchmark]: Boogie Preprocessor took 33.03 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:28,591 INFO L168 Benchmark]: RCFGBuilder took 615.04 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -761.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:28,593 INFO L168 Benchmark]: TraceAbstraction took 3846.39 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 224.8 MB). Peak memory consumption was 224.8 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:28,597 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 307.24 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.09 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.03 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 615.04 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.7 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -761.6 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3846.39 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 224.8 MB). Peak memory consumption was 224.8 MB. Max. memory is 7.1 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: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 20]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 52 locations, 3 error locations. SAFE Result, 3.7s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 2.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 180 SDtfs, 328 SDslu, 419 SDs, 0 SdLazy, 263 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 274 NumberOfCodeBlocks, 270 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 267 ConstructedInterpolants, 3 QuantifiedInterpolants, 36037 SizeOfPredicates, 9 NumberOfNonLiveVariables, 157 ConjunctsInSsa, 16 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! Received shutdown request...