java -ea -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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/trex01_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 17:30:02,902 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 17:30:02,904 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 17:30:02,917 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 17:30:02,918 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 17:30:02,919 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 17:30:02,920 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 17:30:02,922 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 17:30:02,924 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 17:30:02,926 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 17:30:02,928 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 17:30:02,928 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 17:30:02,929 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 17:30:02,932 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 17:30:02,934 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 17:30:02,934 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 17:30:02,943 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 17:30:02,948 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 17:30:02,951 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 17:30:02,953 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 17:30:02,954 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 17:30:02,957 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 17:30:02,959 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-14 17:30:02,975 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-14 17:30:03,005 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 17:30:03,005 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 17:30:03,006 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 17:30:03,006 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 17:30:03,007 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 17:30:03,007 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 17:30:03,007 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 17:30:03,008 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 17:30:03,008 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 17:30:03,008 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-14 17:30:03,008 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 17:30:03,008 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 17:30:03,009 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 17:30:03,009 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 17:30:03,009 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 17:30:03,009 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 17:30:03,011 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 17:30:03,011 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 17:30:03,012 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 17:30:03,012 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 17:30:03,012 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 17:30:03,012 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 17:30:03,012 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 17:30:03,013 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 17:30:03,013 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 17:30:03,013 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 17:30:03,013 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-14 17:30:03,013 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 17:30:03,014 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-14 17:30:03,014 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 17:30:03,066 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 17:30:03,082 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 17:30:03,086 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 17:30:03,089 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 17:30:03,089 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 17:30:03,090 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex01_false-unreach-call_true-termination.i [2018-11-14 17:30:03,174 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f9fe6f5/66b63dd4d013455cacbc5c467e555748/FLAGd5cf93b52 [2018-11-14 17:30:03,633 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 17:30:03,634 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex01_false-unreach-call_true-termination.i [2018-11-14 17:30:03,641 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f9fe6f5/66b63dd4d013455cacbc5c467e555748/FLAGd5cf93b52 [2018-11-14 17:30:03,657 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/73f9fe6f5/66b63dd4d013455cacbc5c467e555748 [2018-11-14 17:30:03,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 17:30:03,669 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 17:30:03,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 17:30:03,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 17:30:03,675 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 17:30:03,677 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:30:03" (1/1) ... [2018-11-14 17:30:03,680 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c7a8dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:03, skipping insertion in model container [2018-11-14 17:30:03,680 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:30:03" (1/1) ... [2018-11-14 17:30:03,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 17:30:03,715 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 17:30:03,977 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 17:30:03,981 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 17:30:04,006 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 17:30:04,025 INFO L195 MainTranslator]: Completed translation [2018-11-14 17:30:04,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:04 WrapperNode [2018-11-14 17:30:04,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 17:30:04,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 17:30:04,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 17:30:04,027 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 17:30:04,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:04" (1/1) ... [2018-11-14 17:30:04,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:04" (1/1) ... [2018-11-14 17:30:04,049 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:04" (1/1) ... [2018-11-14 17:30:04,049 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:04" (1/1) ... [2018-11-14 17:30:04,055 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:04" (1/1) ... [2018-11-14 17:30:04,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:04" (1/1) ... [2018-11-14 17:30:04,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:04" (1/1) ... [2018-11-14 17:30:04,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 17:30:04,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 17:30:04,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 17:30:04,076 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 17:30:04,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:04" (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 [2018-11-14 17:30:04,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 17:30:04,228 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 17:30:04,228 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-14 17:30:04,228 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2018-11-14 17:30:04,228 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 17:30:04,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 17:30:04,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-14 17:30:04,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2018-11-14 17:30:04,229 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-14 17:30:04,229 INFO L130 BoogieDeclarations]: Found specification of procedure f [2018-11-14 17:30:04,229 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 17:30:04,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 17:30:04,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 17:30:04,895 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 17:30:04,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:30:04 BoogieIcfgContainer [2018-11-14 17:30:04,896 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 17:30:04,897 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 17:30:04,897 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 17:30:04,901 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 17:30:04,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:30:03" (1/3) ... [2018-11-14 17:30:04,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ea422a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:30:04, skipping insertion in model container [2018-11-14 17:30:04,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:30:04" (2/3) ... [2018-11-14 17:30:04,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21ea422a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:30:04, skipping insertion in model container [2018-11-14 17:30:04,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:30:04" (3/3) ... [2018-11-14 17:30:04,905 INFO L112 eAbstractionObserver]: Analyzing ICFG trex01_false-unreach-call_true-termination.i [2018-11-14 17:30:04,916 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 17:30:04,925 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 17:30:04,944 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 17:30:04,979 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 17:30:04,980 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 17:30:04,980 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 17:30:04,980 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 17:30:04,981 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 17:30:04,981 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 17:30:04,981 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 17:30:04,981 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 17:30:04,982 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 17:30:05,003 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2018-11-14 17:30:05,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-14 17:30:05,011 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 17:30:05,012 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 17:30:05,015 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 17:30:05,022 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 17:30:05,022 INFO L82 PathProgramCache]: Analyzing trace with hash 1007968315, now seen corresponding path program 1 times [2018-11-14 17:30:05,025 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 17:30:05,025 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 17:30:05,085 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:30:05,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 17:30:05,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:30:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 17:30:05,228 INFO L256 TraceCheckUtils]: 0: Hoare triple {33#true} call ULTIMATE.init(); {33#true} is VALID [2018-11-14 17:30:05,232 INFO L273 TraceCheckUtils]: 1: Hoare triple {33#true} assume true; {33#true} is VALID [2018-11-14 17:30:05,233 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {33#true} {33#true} #70#return; {33#true} is VALID [2018-11-14 17:30:05,233 INFO L256 TraceCheckUtils]: 3: Hoare triple {33#true} call #t~ret6 := main(); {33#true} is VALID [2018-11-14 17:30:05,234 INFO L273 TraceCheckUtils]: 4: Hoare triple {33#true} ~c~1 := #t~nondet5;havoc #t~nondet5; {33#true} is VALID [2018-11-14 17:30:05,234 INFO L273 TraceCheckUtils]: 5: Hoare triple {33#true} assume ~c~1 % 256 != 0; {33#true} is VALID [2018-11-14 17:30:05,234 INFO L256 TraceCheckUtils]: 6: Hoare triple {33#true} call f(1); {33#true} is VALID [2018-11-14 17:30:05,235 INFO L273 TraceCheckUtils]: 7: Hoare triple {33#true} ~d := #in~d;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~x~0 := #t~nondet0;havoc #t~nondet0;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~y~0 := #t~nondet1;havoc #t~nondet1;assume -2147483648 <= #t~nondet2 && #t~nondet2 <= 2147483647;~k~0 := #t~nondet2;havoc #t~nondet2;~z~0 := 1; {33#true} is VALID [2018-11-14 17:30:05,235 INFO L273 TraceCheckUtils]: 8: Hoare triple {33#true} assume !!(~k~0 <= 1073741823); {33#true} is VALID [2018-11-14 17:30:05,240 INFO L273 TraceCheckUtils]: 9: Hoare triple {33#true} assume !true; {34#false} is VALID [2018-11-14 17:30:05,240 INFO L256 TraceCheckUtils]: 10: Hoare triple {34#false} call __VERIFIER_assert((if ~z~0 >= 2 then 1 else 0)); {34#false} is VALID [2018-11-14 17:30:05,241 INFO L273 TraceCheckUtils]: 11: Hoare triple {34#false} ~cond := #in~cond; {34#false} is VALID [2018-11-14 17:30:05,241 INFO L273 TraceCheckUtils]: 12: Hoare triple {34#false} assume ~cond == 0; {34#false} is VALID [2018-11-14 17:30:05,241 INFO L273 TraceCheckUtils]: 13: Hoare triple {34#false} assume !false; {34#false} is VALID [2018-11-14 17:30:05,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-14 17:30:05,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 17:30:05,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-14 17:30:05,254 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-14 17:30:05,257 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 17:30:05,261 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-14 17:30:05,341 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 17:30:05,342 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-14 17:30:05,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-14 17:30:05,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-14 17:30:05,352 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 2 states. [2018-11-14 17:30:05,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:30:05,618 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2018-11-14 17:30:05,618 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-14 17:30:05,618 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2018-11-14 17:30:05,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 17:30:05,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-14 17:30:05,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 61 transitions. [2018-11-14 17:30:05,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-14 17:30:05,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 61 transitions. [2018-11-14 17:30:05,636 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 61 transitions. [2018-11-14 17:30:05,950 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 17:30:05,959 INFO L225 Difference]: With dead ends: 48 [2018-11-14 17:30:05,960 INFO L226 Difference]: Without dead ends: 17 [2018-11-14 17:30:05,963 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-14 17:30:05,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-14 17:30:06,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-14 17:30:06,007 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 17:30:06,007 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand 17 states. [2018-11-14 17:30:06,008 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 17 states. [2018-11-14 17:30:06,008 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 17 states. [2018-11-14 17:30:06,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:30:06,011 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-11-14 17:30:06,012 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-11-14 17:30:06,012 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:30:06,012 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:30:06,013 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 17 states. [2018-11-14 17:30:06,013 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 17 states. [2018-11-14 17:30:06,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:30:06,016 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-11-14 17:30:06,016 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-11-14 17:30:06,017 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:30:06,017 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:30:06,017 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 17:30:06,018 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 17:30:06,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-14 17:30:06,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2018-11-14 17:30:06,022 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 14 [2018-11-14 17:30:06,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 17:30:06,022 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2018-11-14 17:30:06,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-14 17:30:06,022 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2018-11-14 17:30:06,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-14 17:30:06,024 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 17:30:06,024 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 17:30:06,024 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 17:30:06,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 17:30:06,025 INFO L82 PathProgramCache]: Analyzing trace with hash 903668168, now seen corresponding path program 1 times [2018-11-14 17:30:06,025 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 17:30:06,025 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 17:30:06,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:30:06,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 17:30:06,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:30:06,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-14 17:30:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-14 17:30:06,087 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-14 17:30:06,107 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 17:30:06,108 WARN L170 areAnnotationChecker]: fENTRY has no Hoare annotation [2018-11-14 17:30:06,108 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-14 17:30:06,108 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-14 17:30:06,108 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2018-11-14 17:30:06,108 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2018-11-14 17:30:06,108 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 17:30:06,108 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2018-11-14 17:30:06,109 WARN L170 areAnnotationChecker]: L12 has no Hoare annotation [2018-11-14 17:30:06,109 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-14 17:30:06,109 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-14 17:30:06,109 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2018-11-14 17:30:06,109 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2018-11-14 17:30:06,109 WARN L170 areAnnotationChecker]: L3 has no Hoare annotation [2018-11-14 17:30:06,110 WARN L170 areAnnotationChecker]: L3 has no Hoare annotation [2018-11-14 17:30:06,110 WARN L170 areAnnotationChecker]: L18-2 has no Hoare annotation [2018-11-14 17:30:06,110 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2018-11-14 17:30:06,110 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2018-11-14 17:30:06,110 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 17:30:06,111 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2018-11-14 17:30:06,111 WARN L170 areAnnotationChecker]: L33 has no Hoare annotation [2018-11-14 17:30:06,111 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2018-11-14 17:30:06,111 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2018-11-14 17:30:06,111 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-14 17:30:06,111 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-14 17:30:06,112 WARN L170 areAnnotationChecker]: L3-2 has no Hoare annotation [2018-11-14 17:30:06,112 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2018-11-14 17:30:06,112 WARN L170 areAnnotationChecker]: fEXIT has no Hoare annotation [2018-11-14 17:30:06,112 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2018-11-14 17:30:06,112 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2018-11-14 17:30:06,112 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2018-11-14 17:30:06,112 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2018-11-14 17:30:06,113 WARN L170 areAnnotationChecker]: L35-1 has no Hoare annotation [2018-11-14 17:30:06,113 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2018-11-14 17:30:06,113 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2018-11-14 17:30:06,113 WARN L170 areAnnotationChecker]: L20-2 has no Hoare annotation [2018-11-14 17:30:06,113 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 17:30:06,114 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2018-11-14 17:30:06,114 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2018-11-14 17:30:06,114 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-14 17:30:06,114 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2018-11-14 17:30:06,114 WARN L170 areAnnotationChecker]: L20 has no Hoare annotation [2018-11-14 17:30:06,114 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2018-11-14 17:30:06,115 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-14 17:30:06,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:30:06 BoogieIcfgContainer [2018-11-14 17:30:06,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-14 17:30:06,119 INFO L168 Benchmark]: Toolchain (without parser) took 2450.95 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 700.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -678.3 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2018-11-14 17:30:06,122 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. [2018-11-14 17:30:06,122 INFO L168 Benchmark]: CACSL2BoogieTranslator took 356.48 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. [2018-11-14 17:30:06,123 INFO L168 Benchmark]: Boogie Preprocessor took 42.10 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. [2018-11-14 17:30:06,124 INFO L168 Benchmark]: RCFGBuilder took 826.91 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 700.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -731.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2018-11-14 17:30:06,125 INFO L168 Benchmark]: TraceAbstraction took 1220.59 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 42.2 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. [2018-11-14 17:30:06,130 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - GenericResult: Assertions are enabled Assertions are enabled - 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 356.48 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 Preprocessor took 42.10 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 826.91 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 700.4 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -731.0 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1220.59 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.1 GB in the end (delta: 42.2 MB). Peak memory consumption was 42.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 4]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L31] _Bool c = __VERIFIER_nondet_bool(); [L32] COND TRUE \read(c) VAL [c=1] [L33] CALL f(1) VAL [\old(d)=1] [L11] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L11] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L11] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; [L11] int x = __VERIFIER_nondet_int(), y = __VERIFIER_nondet_int(), k = __VERIFIER_nondet_int(), z = 1; VAL [\old(d)=1, d=1, k=0, x=0, y=0, z=1] [L12] COND FALSE !(!(k <= 1073741823)) VAL [\old(d)=1, d=1, k=0, x=0, y=0, z=1] [L15] COND FALSE !(z < k) VAL [\old(d)=1, d=1, k=0, x=0, y=0, z=1] [L16] CALL __VERIFIER_assert(z>=2) VAL [\old(cond)=0] [L3] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L4] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 30 locations, 1 error locations. UNSAFE Result, 1.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 35 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...