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/memsetNonZero3_true-valid-memsafety_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-c5b1954-m [2018-10-10 14:53:27,765 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-10 14:53:27,770 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-10 14:53:27,789 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-10 14:53:27,789 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-10 14:53:27,790 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-10 14:53:27,792 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-10 14:53:27,794 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-10 14:53:27,795 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-10 14:53:27,796 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-10 14:53:27,797 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-10 14:53:27,798 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-10 14:53:27,799 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-10 14:53:27,800 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-10 14:53:27,801 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-10 14:53:27,802 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-10 14:53:27,803 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-10 14:53:27,805 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-10 14:53:27,807 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-10 14:53:27,809 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-10 14:53:27,810 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-10 14:53:27,811 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-10 14:53:27,814 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-10 14:53:27,814 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-10 14:53:27,814 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-10 14:53:27,815 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-10 14:53:27,816 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-10 14:53:27,817 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-10 14:53:27,818 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-10 14:53:27,819 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-10 14:53:27,820 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-10 14:53:27,820 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-10 14:53:27,821 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-10 14:53:27,821 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-10 14:53:27,822 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-10 14:53:27,823 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-10 14:53:27,823 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 14:53:27,849 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-10 14:53:27,850 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-10 14:53:27,851 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-10-10 14:53:27,851 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-10-10 14:53:27,851 INFO L133 SettingsManager]: * Use SBE=true [2018-10-10 14:53:27,852 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-10 14:53:27,853 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-10 14:53:27,853 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-10-10 14:53:27,853 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-10 14:53:27,854 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-10 14:53:27,854 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-10 14:53:27,854 INFO L133 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2018-10-10 14:53:27,854 INFO L133 SettingsManager]: * Bitprecise bitfields=true [2018-10-10 14:53:27,854 INFO L133 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2018-10-10 14:53:27,855 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-10 14:53:27,855 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-10 14:53:27,856 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-10 14:53:27,856 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-10 14:53:27,856 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-10 14:53:27,856 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-10 14:53:27,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-10 14:53:27,857 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-10 14:53:27,858 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-10 14:53:27,858 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-10-10 14:53:27,858 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-10 14:53:27,858 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 14:53:27,917 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-10 14:53:27,931 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-10 14:53:27,935 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-10 14:53:27,937 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-10 14:53:27,937 INFO L276 PluginConnector]: CDTParser initialized [2018-10-10 14:53:27,938 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-memsafety/memsetNonZero3_true-valid-memsafety_true-termination.c [2018-10-10 14:53:28,249 INFO L217 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c803f8450/ce9df8c57f414d9392105f2bec3b5e49/FLAG4b3b6a637 [2018-10-10 14:53:28,486 INFO L289 CDTParser]: Found 1 translation units. [2018-10-10 14:53:28,487 INFO L157 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-memsafety/memsetNonZero3_true-valid-memsafety_true-termination.c [2018-10-10 14:53:28,494 INFO L337 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c803f8450/ce9df8c57f414d9392105f2bec3b5e49/FLAG4b3b6a637 [2018-10-10 14:53:28,518 INFO L345 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c803f8450/ce9df8c57f414d9392105f2bec3b5e49 [2018-10-10 14:53:28,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-10 14:53:28,533 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-10 14:53:28,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-10 14:53:28,536 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-10 14:53:28,540 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-10 14:53:28,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:53:28" (1/1) ... [2018-10-10 14:53:28,544 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21c454e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:28, skipping insertion in model container [2018-10-10 14:53:28,545 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.10 02:53:28" (1/1) ... [2018-10-10 14:53:28,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-10 14:53:28,584 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-10 14:53:28,810 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:53:28,824 INFO L189 MainTranslator]: Completed pre-run [2018-10-10 14:53:28,853 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-10 14:53:28,872 INFO L193 MainTranslator]: Completed translation [2018-10-10 14:53:28,872 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:28 WrapperNode [2018-10-10 14:53:28,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-10 14:53:28,874 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-10 14:53:28,874 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-10 14:53:28,874 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-10 14:53:28,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:28" (1/1) ... [2018-10-10 14:53:28,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:28" (1/1) ... [2018-10-10 14:53:28,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-10 14:53:28,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-10 14:53:28,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-10 14:53:28,921 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-10 14:53:28,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:28" (1/1) ... [2018-10-10 14:53:28,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:28" (1/1) ... [2018-10-10 14:53:28,936 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:28" (1/1) ... [2018-10-10 14:53:28,937 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:28" (1/1) ... [2018-10-10 14:53:28,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:28" (1/1) ... [2018-10-10 14:53:28,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:28" (1/1) ... [2018-10-10 14:53:28,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:28" (1/1) ... [2018-10-10 14:53:28,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-10 14:53:28,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-10 14:53:28,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-10 14:53:28,952 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-10 14:53:28,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:28" (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 14:53:29,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-10 14:53:29,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-10 14:53:29,556 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-10 14:53:29,557 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:53:29 BoogieIcfgContainer [2018-10-10 14:53:29,557 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-10 14:53:29,558 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-10 14:53:29,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-10 14:53:29,561 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-10 14:53:29,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.10 02:53:28" (1/3) ... [2018-10-10 14:53:29,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec3603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:53:29, skipping insertion in model container [2018-10-10 14:53:29,563 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.10 02:53:28" (2/3) ... [2018-10-10 14:53:29,563 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec3603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.10 02:53:29, skipping insertion in model container [2018-10-10 14:53:29,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.10 02:53:29" (3/3) ... [2018-10-10 14:53:29,566 INFO L112 eAbstractionObserver]: Analyzing ICFG memsetNonZero3_true-valid-memsafety_true-termination.c [2018-10-10 14:53:29,576 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-10 14:53:29,585 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2018-10-10 14:53:29,603 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2018-10-10 14:53:29,632 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-10 14:53:29,633 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-10 14:53:29,633 INFO L383 AbstractCegarLoop]: Hoare is false [2018-10-10 14:53:29,633 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-10 14:53:29,633 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-10 14:53:29,633 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-10 14:53:29,634 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-10 14:53:29,634 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-10 14:53:29,634 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-10 14:53:29,652 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-10-10 14:53:29,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-10-10 14:53:29,662 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:29,663 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] [2018-10-10 14:53:29,665 INFO L424 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:29,672 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:29,672 INFO L82 PathProgramCache]: Analyzing trace with hash -218556917, now seen corresponding path program 1 times [2018-10-10 14:53:29,675 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:29,675 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:29,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:29,726 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:29,726 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:29,940 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 14:53:29,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:29,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-10 14:53:29,948 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-10 14:53:29,965 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-10 14:53:29,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-10-10 14:53:29,968 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 6 states. [2018-10-10 14:53:30,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:30,565 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2018-10-10 14:53:30,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-10 14:53:30,567 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-10-10 14:53:30,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:30,579 INFO L225 Difference]: With dead ends: 53 [2018-10-10 14:53:30,579 INFO L226 Difference]: Without dead ends: 48 [2018-10-10 14:53:30,581 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-10 14:53:30,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-10-10 14:53:30,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-10-10 14:53:30,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-10 14:53:30,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-10-10 14:53:30,615 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 25 [2018-10-10 14:53:30,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:30,616 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-10-10 14:53:30,616 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-10 14:53:30,617 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-10-10 14:53:30,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-10-10 14:53:30,617 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:30,618 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] [2018-10-10 14:53:30,618 INFO L424 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:30,619 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:30,619 INFO L82 PathProgramCache]: Analyzing trace with hash 1814670223, now seen corresponding path program 1 times [2018-10-10 14:53:30,619 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:30,619 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:30,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:30,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:30,621 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:30,810 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 14:53:30,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:30,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-10 14:53:30,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-10 14:53:30,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-10 14:53:30,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2018-10-10 14:53:30,814 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 8 states. [2018-10-10 14:53:31,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:31,241 INFO L93 Difference]: Finished difference Result 47 states and 47 transitions. [2018-10-10 14:53:31,242 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-10 14:53:31,242 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 26 [2018-10-10 14:53:31,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:31,243 INFO L225 Difference]: With dead ends: 47 [2018-10-10 14:53:31,244 INFO L226 Difference]: Without dead ends: 47 [2018-10-10 14:53:31,245 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2018-10-10 14:53:31,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-10-10 14:53:31,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-10-10 14:53:31,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-10-10 14:53:31,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 47 transitions. [2018-10-10 14:53:31,251 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 47 transitions. Word has length 26 [2018-10-10 14:53:31,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:31,252 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 47 transitions. [2018-10-10 14:53:31,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-10 14:53:31,252 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 47 transitions. [2018-10-10 14:53:31,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2018-10-10 14:53:31,253 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:31,254 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 14:53:31,254 INFO L424 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:31,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:31,255 INFO L82 PathProgramCache]: Analyzing trace with hash -412732520, now seen corresponding path program 1 times [2018-10-10 14:53:31,255 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:31,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:31,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:31,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:31,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:31,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:31,375 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 14:53:31,375 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-10 14:53:31,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-10 14:53:31,376 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-10 14:53:31,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-10 14:53:31,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-10 14:53:31,377 INFO L87 Difference]: Start difference. First operand 47 states and 47 transitions. Second operand 4 states. [2018-10-10 14:53:31,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:31,421 INFO L93 Difference]: Finished difference Result 49 states and 49 transitions. [2018-10-10 14:53:31,424 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-10 14:53:31,424 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 45 [2018-10-10 14:53:31,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:31,425 INFO L225 Difference]: With dead ends: 49 [2018-10-10 14:53:31,426 INFO L226 Difference]: Without dead ends: 49 [2018-10-10 14:53:31,426 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 14:53:31,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-10-10 14:53:31,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2018-10-10 14:53:31,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-10-10 14:53:31,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2018-10-10 14:53:31,433 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 45 [2018-10-10 14:53:31,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:31,434 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2018-10-10 14:53:31,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-10 14:53:31,434 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2018-10-10 14:53:31,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2018-10-10 14:53:31,436 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:31,436 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, 1, 1] [2018-10-10 14:53:31,436 INFO L424 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:31,437 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:31,437 INFO L82 PathProgramCache]: Analyzing trace with hash -1870204231, now seen corresponding path program 1 times [2018-10-10 14:53:31,437 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:31,437 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:31,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:31,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:31,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:31,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:31,545 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 14:53:31,546 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:31,546 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 14:53:31,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:31,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:31,601 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:31,911 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 14:53:31,945 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-10-10 14:53:31,946 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2018-10-10 14:53:32,000 WARN L240 PathProgramDumper]: Writing path program to file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/dump/memsetNonZero3_true-valid-memsafety_true-termination.c_4.bpl [2018-10-10 14:53:32,003 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-10 14:53:32,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-10 14:53:32,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:32,004 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand 7 states. [2018-10-10 14:53:32,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:32,085 INFO L93 Difference]: Finished difference Result 51 states and 51 transitions. [2018-10-10 14:53:32,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-10 14:53:32,086 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 47 [2018-10-10 14:53:32,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:32,088 INFO L225 Difference]: With dead ends: 51 [2018-10-10 14:53:32,088 INFO L226 Difference]: Without dead ends: 51 [2018-10-10 14:53:32,088 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2018-10-10 14:53:32,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-10-10 14:53:32,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 50. [2018-10-10 14:53:32,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-10-10 14:53:32,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 50 transitions. [2018-10-10 14:53:32,094 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 50 transitions. Word has length 47 [2018-10-10 14:53:32,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:32,095 INFO L481 AbstractCegarLoop]: Abstraction has 50 states and 50 transitions. [2018-10-10 14:53:32,095 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-10 14:53:32,095 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 50 transitions. [2018-10-10 14:53:32,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2018-10-10 14:53:32,096 INFO L367 BasicCegarLoop]: Found error trace [2018-10-10 14:53:32,097 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, 1, 1] [2018-10-10 14:53:32,097 INFO L424 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_DEREFERENCE]=== [2018-10-10 14:53:32,097 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-10 14:53:32,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1953787290, now seen corresponding path program 2 times [2018-10-10 14:53:32,098 INFO L227 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-10-10 14:53:32,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-10-10 14:53:32,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:32,099 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-10 14:53:32,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-10 14:53:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-10 14:53:32,211 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 14:53:32,212 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-10 14:53:32,212 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 14:53:32,228 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-10-10 14:53:32,271 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-10-10 14:53:32,271 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-10 14:53:32,275 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-10 14:53:32,564 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 14:53:32,591 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 14:53:32,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-10 14:53:32,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 14 [2018-10-10 14:53:32,624 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-10 14:53:32,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-10 14:53:32,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=129, Unknown=1, NotChecked=22, Total=182 [2018-10-10 14:53:32,625 INFO L87 Difference]: Start difference. First operand 50 states and 50 transitions. Second operand 14 states. [2018-10-10 14:53:33,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-10 14:53:33,634 INFO L93 Difference]: Finished difference Result 52 states and 52 transitions. [2018-10-10 14:53:33,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-10 14:53:33,635 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 49 [2018-10-10 14:53:33,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-10 14:53:33,635 INFO L225 Difference]: With dead ends: 52 [2018-10-10 14:53:33,635 INFO L226 Difference]: Without dead ends: 0 [2018-10-10 14:53:33,636 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 42 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 14:53:33,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-10 14:53:33,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-10 14:53:33,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-10 14:53:33,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-10 14:53:33,638 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2018-10-10 14:53:33,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-10 14:53:33,638 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-10 14:53:33,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-10 14:53:33,639 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-10 14:53:33,639 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-10 14:53:33,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.10 02:53:33 BoogieIcfgContainer [2018-10-10 14:53:33,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-10 14:53:33,644 INFO L168 Benchmark]: Toolchain (without parser) took 5112.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -547.1 MB). Peak memory consumption was 186.4 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:33,646 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-10 14:53:33,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.57 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 14:53:33,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.08 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 14:53:33,648 INFO L168 Benchmark]: Boogie Preprocessor took 30.35 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 14:53:33,649 INFO L168 Benchmark]: RCFGBuilder took 605.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -790.5 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:33,650 INFO L168 Benchmark]: TraceAbstraction took 4085.54 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 232.8 MB). Peak memory consumption was 232.8 MB. Max. memory is 7.1 GB. [2018-10-10 14:53:33,655 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 338.57 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 47.08 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 30.35 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 605.37 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 733.5 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -790.5 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4085.54 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 232.8 MB). Peak memory consumption was 232.8 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: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 54 locations, 3 error locations. SAFE Result, 4.0s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 2.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 188 SDtfs, 390 SDslu, 430 SDs, 0 SdLazy, 284 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 141 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 1.2s InterpolantComputationTime, 288 NumberOfCodeBlocks, 284 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 281 ConstructedInterpolants, 3 QuantifiedInterpolants, 39987 SizeOfPredicates, 9 NumberOfNonLiveVariables, 167 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...