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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/float-benchs/zonotope_tight_true-unreach-call_true-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-2c62905 [2018-09-19 15:52:41,072 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-19 15:52:41,074 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-19 15:52:41,086 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-19 15:52:41,087 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-19 15:52:41,088 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-19 15:52:41,089 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-19 15:52:41,091 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-19 15:52:41,092 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-19 15:52:41,093 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-19 15:52:41,094 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-19 15:52:41,094 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-19 15:52:41,095 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-19 15:52:41,096 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-19 15:52:41,097 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-19 15:52:41,098 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-19 15:52:41,099 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-19 15:52:41,101 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-19 15:52:41,103 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-19 15:52:41,105 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-19 15:52:41,106 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-19 15:52:41,107 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-19 15:52:41,110 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-19 15:52:41,119 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 [2018-09-19 15:52:41,139 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-19 15:52:41,139 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-19 15:52:41,140 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-19 15:52:41,140 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-09-19 15:52:41,141 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-09-19 15:52:41,141 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-09-19 15:52:41,141 INFO L133 SettingsManager]: * Use SBE=true [2018-09-19 15:52:41,141 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-19 15:52:41,142 INFO L133 SettingsManager]: * sizeof long=4 [2018-09-19 15:52:41,142 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-09-19 15:52:41,142 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-19 15:52:41,142 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-19 15:52:41,142 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-19 15:52:41,143 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-19 15:52:41,143 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-09-19 15:52:41,143 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-09-19 15:52:41,143 INFO L133 SettingsManager]: * sizeof long double=12 [2018-09-19 15:52:41,143 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-19 15:52:41,143 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-19 15:52:41,144 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-19 15:52:41,144 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-19 15:52:41,144 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-19 15:52:41,144 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-19 15:52:41,145 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-19 15:52:41,145 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-19 15:52:41,145 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-19 15:52:41,145 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-19 15:52:41,145 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-09-19 15:52:41,146 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-19 15:52:41,146 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-09-19 15:52:41,146 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-09-19 15:52:41,146 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-19 15:52:41,197 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-19 15:52:41,210 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-19 15:52:41,215 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-19 15:52:41,216 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-19 15:52:41,217 INFO L276 PluginConnector]: CDTParser initialized [2018-09-19 15:52:41,218 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-09-19 15:52:41,563 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5490aec33/e151e8a78b0e4c918fb81ea8217acae9/FLAGd21864ec0 [2018-09-19 15:52:41,754 INFO L277 CDTParser]: Found 1 translation units. [2018-09-19 15:52:41,754 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-09-19 15:52:41,763 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5490aec33/e151e8a78b0e4c918fb81ea8217acae9/FLAGd21864ec0 [2018-09-19 15:52:41,779 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5490aec33/e151e8a78b0e4c918fb81ea8217acae9 [2018-09-19 15:52:41,790 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-19 15:52:41,793 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-19 15:52:41,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-19 15:52:41,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-19 15:52:41,802 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-19 15:52:41,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:52:41" (1/1) ... [2018-09-19 15:52:41,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304117ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:41, skipping insertion in model container [2018-09-19 15:52:41,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.09 03:52:41" (1/1) ... [2018-09-19 15:52:41,818 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-19 15:52:42,006 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 15:52:42,024 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-19 15:52:42,030 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-19 15:52:42,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:42 WrapperNode [2018-09-19 15:52:42,046 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-19 15:52:42,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-19 15:52:42,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-19 15:52:42,047 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-19 15:52:42,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:42" (1/1) ... [2018-09-19 15:52:42,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:42" (1/1) ... [2018-09-19 15:52:42,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:42" (1/1) ... [2018-09-19 15:52:42,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:42" (1/1) ... [2018-09-19 15:52:42,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:42" (1/1) ... [2018-09-19 15:52:42,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:42" (1/1) ... [2018-09-19 15:52:42,079 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:42" (1/1) ... [2018-09-19 15:52:42,081 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-19 15:52:42,082 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-19 15:52:42,082 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-19 15:52:42,082 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-19 15:52:42,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:42" (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 [2018-09-19 15:52:42,159 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-19 15:52:42,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-19 15:52:42,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-19 15:52:42,160 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-19 15:52:42,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-09-19 15:52:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2018-09-19 15:52:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-09-19 15:52:42,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-19 15:52:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-19 15:52:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-19 15:52:42,162 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-19 15:52:45,877 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-19 15:52:45,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:52:45 BoogieIcfgContainer [2018-09-19 15:52:45,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-19 15:52:45,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-19 15:52:45,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-19 15:52:45,883 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-19 15:52:45,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.09 03:52:41" (1/3) ... [2018-09-19 15:52:45,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741e883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:52:45, skipping insertion in model container [2018-09-19 15:52:45,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.09 03:52:42" (2/3) ... [2018-09-19 15:52:45,885 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@741e883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.09 03:52:45, skipping insertion in model container [2018-09-19 15:52:45,885 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.09 03:52:45" (3/3) ... [2018-09-19 15:52:45,887 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight_true-unreach-call_true-termination.c [2018-09-19 15:52:45,898 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-19 15:52:45,906 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-19 15:52:45,953 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-19 15:52:45,954 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-19 15:52:45,954 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-19 15:52:45,954 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-19 15:52:45,954 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-19 15:52:45,954 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-19 15:52:45,955 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-19 15:52:45,955 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-19 15:52:45,955 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-19 15:52:45,973 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-19 15:52:45,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-19 15:52:45,979 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 15:52:45,980 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 15:52:45,982 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 15:52:45,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-09-19 15:52:45,995 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 15:52:45,995 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-09-19 15:52:46,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-19 15:52:46,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 15:52:46,617 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 15:52:48,969 WARN L797 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53)) (= (fp.div RNE main_~x~0 .cse0) c_main_~y~0)))) is different from false [2018-09-19 15:52:51,181 WARN L819 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53)) (= (fp.div RNE main_~x~0 .cse0) c_main_~y~0)))) is different from true [2018-09-19 15:53:08,892 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and .cse0 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse2) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse2) ((_ to_fp 11 53) RNE 4.0))))))))) is different from false [2018-09-19 15:53:20,417 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse1) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse1) ((_ to_fp 11 53) RNE 4.0))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (and .cse0 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse2) (_ +zero 11 53))) (fp.leq main_~x~0 .cse2) (fp.geq main_~x~0 (_ +zero 11 53)))))))) is different from false [2018-09-19 15:53:31,936 WARN L797 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse0) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse0) ((_ to_fp 11 53) RNE 4.0)))))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) is different from false [2018-09-19 15:53:34,183 WARN L819 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq v_prenex_1 .cse0) (fp.geq v_prenex_1 (_ +zero 11 53)) (not (fp.leq (fp.div RNE v_prenex_1 .cse0) ((_ to_fp 11 53) RNE 4.0)))))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) RNE 10.0))) (and (not (fp.geq (fp.div RNE main_~x~0 .cse1) (_ +zero 11 53))) (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)))))) is different from true [2018-09-19 15:53:34,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 15:53:34,191 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 15:53:34,212 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 15:53:34,213 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 15:53:34,217 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-19 15:53:34,229 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-19 15:53:34,230 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-09-19 15:53:34,233 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2018-09-19 15:53:38,360 WARN L797 $PredicateComparison]: unable to prove that (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) RNE 10.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53)) (= (fp.div RNE main_~x~0 .cse0) c_main_~y~0)))) (fp.leq c_main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq c_main_~x~0 (_ +zero 11 53))) is different from false [2018-09-19 15:53:40,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 15:53:40,480 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2018-09-19 15:53:40,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 15:53:40,530 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-09-19 15:53:40,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 15:53:40,540 INFO L225 Difference]: With dead ends: 30 [2018-09-19 15:53:40,540 INFO L226 Difference]: Without dead ends: 11 [2018-09-19 15:53:40,545 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=13, Invalid=6, Unknown=7, NotChecked=30, Total=56 [2018-09-19 15:53:40,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-09-19 15:53:40,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-09-19 15:53:40,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-09-19 15:53:40,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2018-09-19 15:53:40,581 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2018-09-19 15:53:40,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 15:53:40,582 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2018-09-19 15:53:40,582 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-19 15:53:40,582 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-09-19 15:53:40,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-09-19 15:53:40,583 INFO L368 BasicCegarLoop]: Found error trace [2018-09-19 15:53:40,583 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-19 15:53:40,584 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-19 15:53:40,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1734924095, now seen corresponding path program 1 times [2018-09-19 15:53:40,585 INFO L227 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-09-19 15:53:40,585 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-09-19 15:53:40,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-09-19 15:53:41,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-19 15:53:41,131 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-19 15:53:43,210 WARN L797 $PredicateComparison]: unable to prove that (and (fp.leq c_main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (= (fp.sub RNE (fp.mul RNE c_main_~x~0 c_main_~x~0) c_main_~x~0) c_main_~y~0) (fp.geq c_main_~x~0 (_ +zero 11 53))) is different from false [2018-09-19 15:53:45,313 WARN L797 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE main_~x~0 main_~x~0))) (and (= (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse0 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32))))))) is different from false [2018-09-19 15:53:47,376 WARN L819 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE main_~x~0 main_~x~0))) (and (= (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse0 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32))))))) is different from true [2018-09-19 15:54:04,053 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse1 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (fp.leq v_prenex_7 ((_ to_fp 11 53) RNE 10.0)) (not (fp.geq (fp.sub RNE .cse0 v_prenex_7) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.geq (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53)))))) .cse1) (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul RNE main_~x~0 main_~x~0))) (let ((.cse2 (fp.add RNE .cse3 ((_ to_fp 11 53) RNE 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) RNE 4.0)) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq .cse2 (_ +zero 11 53)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse3 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32))))))))) (and .cse1 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse4 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.leq (fp.add RNE .cse4 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)))))))) is different from false [2018-09-19 15:54:18,646 WARN L797 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse1 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.leq (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)))))) (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul RNE main_~x~0 main_~x~0))) (let ((.cse2 (fp.add RNE .cse3 ((_ to_fp 11 53) RNE 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) RNE 4.0)) (fp.leq main_~x~0 ((_ to_fp 11 53) RNE 10.0)) (fp.geq .cse2 (_ +zero 11 53)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub RNE .cse3 main_~x~0) ((_ to_fp 11 53) RNE (_ bv0 32)))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32))) (and .cse0 (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul RNE v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (fp.leq v_prenex_7 ((_ to_fp 11 53) RNE 10.0)) (not (fp.geq (fp.sub RNE .cse4 v_prenex_7) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.geq (fp.add RNE .cse4 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53))))))))) is different from false [2018-09-19 15:54:29,049 WARN L797 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (fp.leq v_prenex_7 ((_ to_fp 11 53) RNE 10.0)) (not (fp.geq (fp.sub RNE .cse0 v_prenex_7) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.geq (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53)))))) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse1 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.leq (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)))))) is different from false [2018-09-19 15:54:31,119 WARN L819 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_7 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul RNE v_prenex_7 v_prenex_7))) (and (fp.geq v_prenex_7 (_ +zero 11 53)) (fp.leq v_prenex_7 ((_ to_fp 11 53) RNE 10.0)) (not (fp.geq (fp.sub RNE .cse0 v_prenex_7) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.geq (fp.add RNE .cse0 ((_ to_fp 11 53) RNE 2.0)) (_ +zero 11 53)))))) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul RNE v_prenex_5 v_prenex_5))) (and (not (fp.geq (fp.sub RNE .cse1 v_prenex_5) ((_ to_fp 11 53) RNE (_ bv0 32)))) (not (fp.leq (fp.add RNE .cse1 ((_ to_fp 11 53) RNE 2.0)) ((_ to_fp 11 53) RNE 4.0))) (fp.leq v_prenex_5 ((_ to_fp 11 53) RNE 10.0)) (fp.geq v_prenex_5 (_ +zero 11 53)))))) is different from true [2018-09-19 15:54:31,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-19 15:54:31,122 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-09-19 15:54:31,135 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-19 15:54:31,135 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-19 15:54:31,137 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-19 15:54:31,137 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-19 15:54:31,137 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2018-09-19 15:54:31,138 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 7 states. [2018-09-19 15:54:31,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-19 15:54:31,143 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2018-09-19 15:54:31,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-19 15:54:31,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-09-19 15:54:31,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-19 15:54:31,144 INFO L225 Difference]: With dead ends: 11 [2018-09-19 15:54:31,145 INFO L226 Difference]: Without dead ends: 0 [2018-09-19 15:54:31,146 INFO L606 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=11, Invalid=4, Unknown=7, NotChecked=20, Total=42 [2018-09-19 15:54:31,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-19 15:54:31,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-19 15:54:31,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-19 15:54:31,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-19 15:54:31,147 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-09-19 15:54:31,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-19 15:54:31,147 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-19 15:54:31,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-19 15:54:31,147 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-19 15:54:31,147 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-19 15:54:31,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-19 15:54:44,791 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:154) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:621) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:122) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:122) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:113) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:187) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplify(SmtUtils.java:149) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.SmtUtils.simplifyWithStatistics(SmtUtils.java:196) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter(HoareAnnotationComposer.java:149) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.(HoareAnnotationComposer.java:105) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeCFGHoareAnnotation(BasicCegarLoop.java:985) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:325) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 31 more [2018-09-19 15:54:44,795 INFO L168 Benchmark]: Toolchain (without parser) took 123004.72 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.1 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -703.4 MB). Peak memory consumption was 42.7 MB. Max. memory is 7.1 GB. [2018-09-19 15:54:44,798 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-09-19 15:54:44,799 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.91 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. [2018-09-19 15:54:44,800 INFO L168 Benchmark]: Boogie Preprocessor took 34.44 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. [2018-09-19 15:54:44,800 INFO L168 Benchmark]: RCFGBuilder took 3796.86 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -781.7 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-09-19 15:54:44,801 INFO L168 Benchmark]: TraceAbstraction took 118914.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 67.7 MB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. [2018-09-19 15:54:44,806 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 251.91 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 34.44 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 3796.86 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -781.7 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 118914.87 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 67.7 MB). Peak memory consumption was 67.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...