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_Bitvector.epf -i ../../../trunk/examples/svcomp/loop-invariants/eq2_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 16:49:04,872 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 16:49:04,876 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 16:49:04,894 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 16:49:04,894 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 16:49:04,896 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 16:49:04,898 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 16:49:04,901 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 16:49:04,903 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 16:49:04,905 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 16:49:04,906 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 16:49:04,906 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 16:49:04,908 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 16:49:04,911 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 16:49:04,919 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 16:49:04,920 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 16:49:04,921 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 16:49:04,925 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 16:49:04,927 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 16:49:04,929 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 16:49:04,930 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 16:49:04,931 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 16:49:04,932 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-14 16:49:04,933 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-14 16:49:04,933 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-14 16:49:04,934 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-14 16:49:04,935 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-14 16:49:04,935 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-14 16:49:04,936 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-14 16:49:04,937 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-14 16:49:04,937 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-14 16:49:04,938 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-14 16:49:04,938 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-14 16:49:04,938 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-14 16:49:04,939 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-14 16:49:04,940 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-14 16:49:04,940 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-14 16:49:04,955 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 16:49:04,955 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 16:49:04,956 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 16:49:04,956 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 16:49:04,957 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 16:49:04,957 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 16:49:04,957 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 16:49:04,957 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 16:49:04,958 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 16:49:04,958 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 16:49:04,958 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 16:49:04,958 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 16:49:04,958 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 16:49:04,959 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 16:49:04,959 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-14 16:49:04,959 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-14 16:49:04,959 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 16:49:04,959 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 16:49:04,960 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 16:49:04,960 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 16:49:04,960 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 16:49:04,960 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 16:49:04,960 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 16:49:04,960 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 16:49:04,961 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 16:49:04,961 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 16:49:04,961 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 16:49:04,961 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-14 16:49:04,961 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 16:49:04,962 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-14 16:49:04,962 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-14 16:49:04,962 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 16:49:05,034 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 16:49:05,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 16:49:05,059 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 16:49:05,061 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 16:49:05,061 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 16:49:05,062 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invariants/eq2_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2018-11-14 16:49:05,136 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a12efe25/9944eccd2113458abe042d41df3b338d/FLAGf9fc21366 [2018-11-14 16:49:05,628 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 16:49:05,629 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invariants/eq2_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2018-11-14 16:49:05,636 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a12efe25/9944eccd2113458abe042d41df3b338d/FLAGf9fc21366 [2018-11-14 16:49:05,658 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a12efe25/9944eccd2113458abe042d41df3b338d [2018-11-14 16:49:05,670 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 16:49:05,673 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 16:49:05,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 16:49:05,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 16:49:05,681 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 16:49:05,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:49:05" (1/1) ... [2018-11-14 16:49:05,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38263162 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:05, skipping insertion in model container [2018-11-14 16:49:05,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 04:49:05" (1/1) ... [2018-11-14 16:49:05,697 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 16:49:05,717 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 16:49:05,957 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 16:49:05,966 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 16:49:05,988 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 16:49:06,009 INFO L195 MainTranslator]: Completed translation [2018-11-14 16:49:06,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06 WrapperNode [2018-11-14 16:49:06,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 16:49:06,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 16:49:06,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 16:49:06,012 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 16:49:06,028 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2018-11-14 16:49:06,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2018-11-14 16:49:06,038 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2018-11-14 16:49:06,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2018-11-14 16:49:06,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2018-11-14 16:49:06,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2018-11-14 16:49:06,061 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (1/1) ... [2018-11-14 16:49:06,063 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 16:49:06,066 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 16:49:06,066 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 16:49:06,066 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 16:49:06,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (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 16:49:06,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 16:49:06,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 16:49:06,219 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-14 16:49:06,219 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 16:49:06,219 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 16:49:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2018-11-14 16:49:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-14 16:49:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 16:49:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 16:49:06,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 16:49:06,695 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 16:49:06,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:49:06 BoogieIcfgContainer [2018-11-14 16:49:06,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 16:49:06,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 16:49:06,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 16:49:06,701 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 16:49:06,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 04:49:05" (1/3) ... [2018-11-14 16:49:06,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1caacade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:49:06, skipping insertion in model container [2018-11-14 16:49:06,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 04:49:06" (2/3) ... [2018-11-14 16:49:06,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1caacade and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 04:49:06, skipping insertion in model container [2018-11-14 16:49:06,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 04:49:06" (3/3) ... [2018-11-14 16:49:06,705 INFO L112 eAbstractionObserver]: Analyzing ICFG eq2_true-unreach-call_true-valid-memsafety_true-no-overflow_false-termination.c [2018-11-14 16:49:06,716 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 16:49:06,725 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 16:49:06,743 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 16:49:06,778 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 16:49:06,779 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 16:49:06,779 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 16:49:06,779 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 16:49:06,780 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 16:49:06,780 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 16:49:06,780 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 16:49:06,780 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 16:49:06,780 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 16:49:06,805 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-14 16:49:06,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-14 16:49:06,817 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 16:49:06,818 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 16:49:06,824 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 16:49:06,831 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 16:49:06,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1871509567, now seen corresponding path program 1 times [2018-11-14 16:49:06,836 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-14 16:49:06,837 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-14 16:49:06,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 16:49:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 16:49:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 16:49:06,930 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-14 16:49:07,038 INFO L256 TraceCheckUtils]: 0: Hoare triple {22#true} call ULTIMATE.init(); {22#true} is VALID [2018-11-14 16:49:07,042 INFO L273 TraceCheckUtils]: 1: Hoare triple {22#true} assume true; {22#true} is VALID [2018-11-14 16:49:07,043 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {22#true} {22#true} #33#return; {22#true} is VALID [2018-11-14 16:49:07,043 INFO L256 TraceCheckUtils]: 3: Hoare triple {22#true} call #t~ret4 := main(); {22#true} is VALID [2018-11-14 16:49:07,043 INFO L273 TraceCheckUtils]: 4: Hoare triple {22#true} ~w~0 := #t~nondet0;havoc #t~nondet0;~x~0 := ~w~0;~y~0 := ~bvadd32(1bv32, ~w~0);~z~0 := ~bvadd32(1bv32, ~x~0); {22#true} is VALID [2018-11-14 16:49:07,045 INFO L273 TraceCheckUtils]: 5: Hoare triple {22#true} assume !true; {23#false} is VALID [2018-11-14 16:49:07,045 INFO L256 TraceCheckUtils]: 6: Hoare triple {23#false} call __VERIFIER_assert((if ~y~0 == ~z~0 then 1bv32 else 0bv32)); {23#false} is VALID [2018-11-14 16:49:07,046 INFO L273 TraceCheckUtils]: 7: Hoare triple {23#false} ~cond := #in~cond; {23#false} is VALID [2018-11-14 16:49:07,047 INFO L273 TraceCheckUtils]: 8: Hoare triple {23#false} assume ~cond == 0bv32; {23#false} is VALID [2018-11-14 16:49:07,047 INFO L273 TraceCheckUtils]: 9: Hoare triple {23#false} assume !false; {23#false} is VALID [2018-11-14 16:49:07,051 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 16:49:07,052 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-14 16:49:07,059 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 16:49:07,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-14 16:49:07,066 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-14 16:49:07,075 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 16:49:07,079 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-14 16:49:07,118 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 16:49:07,118 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-14 16:49:07,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-14 16:49:07,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-14 16:49:07,129 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 2 states. [2018-11-14 16:49:07,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 16:49:07,218 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2018-11-14 16:49:07,218 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-14 16:49:07,218 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-11-14 16:49:07,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 16:49:07,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-14 16:49:07,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 34 transitions. [2018-11-14 16:49:07,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-14 16:49:07,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 34 transitions. [2018-11-14 16:49:07,234 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 34 transitions. [2018-11-14 16:49:07,552 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 16:49:07,563 INFO L225 Difference]: With dead ends: 31 [2018-11-14 16:49:07,563 INFO L226 Difference]: Without dead ends: 12 [2018-11-14 16:49:07,567 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 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 16:49:07,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2018-11-14 16:49:07,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2018-11-14 16:49:07,626 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 16:49:07,626 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states. Second operand 12 states. [2018-11-14 16:49:07,627 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 12 states. [2018-11-14 16:49:07,627 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 12 states. [2018-11-14 16:49:07,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 16:49:07,630 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-11-14 16:49:07,631 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-14 16:49:07,631 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 16:49:07,631 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 16:49:07,632 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 12 states. [2018-11-14 16:49:07,632 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 12 states. [2018-11-14 16:49:07,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 16:49:07,635 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-11-14 16:49:07,635 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-14 16:49:07,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 16:49:07,636 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 16:49:07,636 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 16:49:07,636 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 16:49:07,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2018-11-14 16:49:07,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2018-11-14 16:49:07,640 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2018-11-14 16:49:07,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 16:49:07,641 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2018-11-14 16:49:07,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-14 16:49:07,641 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2018-11-14 16:49:07,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-14 16:49:07,642 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 16:49:07,642 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 16:49:07,643 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 16:49:07,643 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 16:49:07,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1861991801, now seen corresponding path program 1 times [2018-11-14 16:49:07,643 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-14 16:49:07,644 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk [2018-11-14 16:49:07,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 16:49:07,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 16:49:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 16:49:07,712 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-14 16:49:07,875 INFO L256 TraceCheckUtils]: 0: Hoare triple {136#true} call ULTIMATE.init(); {136#true} is VALID [2018-11-14 16:49:07,876 INFO L273 TraceCheckUtils]: 1: Hoare triple {136#true} assume true; {136#true} is VALID [2018-11-14 16:49:07,876 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {136#true} {136#true} #33#return; {136#true} is VALID [2018-11-14 16:49:07,876 INFO L256 TraceCheckUtils]: 3: Hoare triple {136#true} call #t~ret4 := main(); {136#true} is VALID [2018-11-14 16:49:07,878 INFO L273 TraceCheckUtils]: 4: Hoare triple {136#true} ~w~0 := #t~nondet0;havoc #t~nondet0;~x~0 := ~w~0;~y~0 := ~bvadd32(1bv32, ~w~0);~z~0 := ~bvadd32(1bv32, ~x~0); {153#(= main_~y~0 main_~z~0)} is VALID [2018-11-14 16:49:07,879 INFO L273 TraceCheckUtils]: 5: Hoare triple {153#(= main_~y~0 main_~z~0)} assume true; {153#(= main_~y~0 main_~z~0)} is VALID [2018-11-14 16:49:07,880 INFO L273 TraceCheckUtils]: 6: Hoare triple {153#(= main_~y~0 main_~z~0)} assume !(#t~nondet1 != 0bv32);havoc #t~nondet1; {153#(= main_~y~0 main_~z~0)} is VALID [2018-11-14 16:49:07,881 INFO L256 TraceCheckUtils]: 7: Hoare triple {153#(= main_~y~0 main_~z~0)} call __VERIFIER_assert((if ~y~0 == ~z~0 then 1bv32 else 0bv32)); {163#(= (bvadd |__VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-14 16:49:07,883 INFO L273 TraceCheckUtils]: 8: Hoare triple {163#(= (bvadd |__VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32))} ~cond := #in~cond; {167#(= (bvadd __VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} is VALID [2018-11-14 16:49:07,884 INFO L273 TraceCheckUtils]: 9: Hoare triple {167#(= (bvadd __VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))} assume ~cond == 0bv32; {137#false} is VALID [2018-11-14 16:49:07,885 INFO L273 TraceCheckUtils]: 10: Hoare triple {137#false} assume !false; {137#false} is VALID [2018-11-14 16:49:07,886 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 16:49:07,886 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-14 16:49:07,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 16:49:07,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-14 16:49:07,892 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-14 16:49:07,893 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 16:49:07,894 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-14 16:49:07,934 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 16:49:07,934 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-14 16:49:07,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-14 16:49:07,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-14 16:49:07,936 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2018-11-14 16:49:08,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 16:49:08,159 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2018-11-14 16:49:08,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-14 16:49:08,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2018-11-14 16:49:08,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 16:49:08,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-14 16:49:08,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2018-11-14 16:49:08,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-14 16:49:08,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 12 transitions. [2018-11-14 16:49:08,164 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 12 transitions. [2018-11-14 16:49:08,205 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 16:49:08,206 INFO L225 Difference]: With dead ends: 12 [2018-11-14 16:49:08,206 INFO L226 Difference]: Without dead ends: 0 [2018-11-14 16:49:08,207 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-14 16:49:08,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-14 16:49:08,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-14 16:49:08,207 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 16:49:08,207 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-14 16:49:08,207 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-14 16:49:08,208 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-14 16:49:08,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 16:49:08,208 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-14 16:49:08,208 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 16:49:08,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 16:49:08,209 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 16:49:08,209 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-14 16:49:08,209 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-14 16:49:08,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 16:49:08,210 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-14 16:49:08,210 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 16:49:08,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 16:49:08,210 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 16:49:08,210 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 16:49:08,210 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 16:49:08,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-14 16:49:08,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-14 16:49:08,211 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-14 16:49:08,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 16:49:08,211 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-14 16:49:08,211 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-14 16:49:08,211 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 16:49:08,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 16:49:08,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-14 16:49:08,395 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-14 16:49:08,395 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-14 16:49:08,395 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-14 16:49:08,395 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-14 16:49:08,396 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-14 16:49:08,396 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-14 16:49:08,396 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 9 20) the Hoare annotation is: true [2018-11-14 16:49:08,396 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 9 20) no Hoare annotation was computed. [2018-11-14 16:49:08,396 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-14 16:49:08,396 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 17) no Hoare annotation was computed. [2018-11-14 16:49:08,397 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 9 20) no Hoare annotation was computed. [2018-11-14 16:49:08,397 INFO L421 ceAbstractionStarter]: At program point L14-3(lines 14 17) the Hoare annotation is: (= main_~y~0 main_~z~0) [2018-11-14 16:49:08,397 INFO L421 ceAbstractionStarter]: At program point L14-4(lines 14 17) the Hoare annotation is: (= main_~y~0 main_~z~0) [2018-11-14 16:49:08,397 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-14 16:49:08,397 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-14 16:49:08,398 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-14 16:49:08,398 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-14 16:49:08,398 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-14 16:49:08,398 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-14 16:49:08,400 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 16:49:08,402 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-14 16:49:08,402 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 16:49:08,402 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 16:49:08,402 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2018-11-14 16:49:08,408 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-14 16:49:08,408 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-14 16:49:08,408 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 16:49:08,408 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2018-11-14 16:49:08,408 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2018-11-14 16:49:08,409 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2018-11-14 16:49:08,409 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-14 16:49:08,409 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-14 16:49:08,409 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2018-11-14 16:49:08,409 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2018-11-14 16:49:08,409 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2018-11-14 16:49:08,409 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 16:49:08,410 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-14 16:49:08,410 INFO L163 areAnnotationChecker]: CFG has 5 edges. 5 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-14 16:49:08,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 04:49:08 BoogieIcfgContainer [2018-11-14 16:49:08,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-14 16:49:08,420 INFO L168 Benchmark]: Toolchain (without parser) took 2748.74 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -665.0 MB). Peak memory consumption was 50.1 MB. Max. memory is 7.1 GB. [2018-11-14 16:49:08,422 INFO L168 Benchmark]: CDTParser took 0.24 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 16:49:08,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 336.38 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 16:49:08,424 INFO L168 Benchmark]: Boogie Preprocessor took 51.92 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 16:49:08,424 INFO L168 Benchmark]: RCFGBuilder took 631.05 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -775.4 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2018-11-14 16:49:08,426 INFO L168 Benchmark]: TraceAbstraction took 1721.71 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 99.9 MB). Peak memory consumption was 99.9 MB. Max. memory is 7.1 GB. [2018-11-14 16:49:08,430 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 0.24 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 336.38 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 51.92 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 631.05 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 715.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -775.4 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1721.71 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 99.9 MB). Peak memory consumption was 99.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: y == z - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 27 SDtfs, 1 SDslu, 20 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 20 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 11 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 321 SizeOfPredicates, 4 NumberOfNonLiveVariables, 43 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...