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-Const.epf -i ../../../trunk/examples/svcomp/loops/terminator_01_false-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 18:26:31,205 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 18:26:31,207 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 18:26:31,220 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 18:26:31,220 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 18:26:31,221 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 18:26:31,223 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 18:26:31,225 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 18:26:31,226 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 18:26:31,227 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 18:26:31,228 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 18:26:31,229 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 18:26:31,230 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 18:26:31,231 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 18:26:31,232 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 18:26:31,233 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 18:26:31,233 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 18:26:31,235 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 18:26:31,237 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 18:26:31,239 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 18:26:31,240 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 18:26:31,241 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 18:26:31,243 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-14 18:26:31,243 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-14 18:26:31,244 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-14 18:26:31,245 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-14 18:26:31,246 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-14 18:26:31,247 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-14 18:26:31,247 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-14 18:26:31,249 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-14 18:26:31,249 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-14 18:26:31,251 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-14 18:26:31,251 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-14 18:26:31,251 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-14 18:26:31,252 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-14 18:26:31,253 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-14 18:26:31,253 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector-Const.epf [2018-11-14 18:26:31,284 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 18:26:31,285 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 18:26:31,286 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 18:26:31,289 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 18:26:31,290 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 18:26:31,290 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 18:26:31,290 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 18:26:31,290 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 18:26:31,290 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 18:26:31,292 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 18:26:31,292 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 18:26:31,292 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 18:26:31,292 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 18:26:31,292 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 18:26:31,293 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-14 18:26:31,293 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-14 18:26:31,293 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 18:26:31,293 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 18:26:31,293 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-14 18:26:31,295 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 18:26:31,295 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 18:26:31,295 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 18:26:31,295 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 18:26:31,296 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 18:26:31,296 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 18:26:31,296 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 18:26:31,297 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 18:26:31,297 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 18:26:31,297 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-14 18:26:31,297 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 18:26:31,297 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-14 18:26:31,298 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-14 18:26:31,298 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 18:26:31,365 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 18:26:31,385 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 18:26:31,390 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 18:26:31,392 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 18:26:31,393 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 18:26:31,393 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_01_false-unreach-call_true-termination.i [2018-11-14 18:26:31,464 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9d33cc40/bed8f18d8036453da9d638596f69fe86/FLAG7feb1230d [2018-11-14 18:26:31,956 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 18:26:31,957 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_01_false-unreach-call_true-termination.i [2018-11-14 18:26:31,964 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9d33cc40/bed8f18d8036453da9d638596f69fe86/FLAG7feb1230d [2018-11-14 18:26:31,982 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a9d33cc40/bed8f18d8036453da9d638596f69fe86 [2018-11-14 18:26:31,994 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 18:26:31,996 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 18:26:31,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 18:26:31,997 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 18:26:32,002 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 18:26:32,003 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 06:26:31" (1/1) ... [2018-11-14 18:26:32,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f0d61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:26:32, skipping insertion in model container [2018-11-14 18:26:32,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 06:26:31" (1/1) ... [2018-11-14 18:26:32,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 18:26:32,040 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 18:26:32,293 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 18:26:32,312 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 18:26:32,334 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 18:26:32,358 INFO L195 MainTranslator]: Completed translation [2018-11-14 18:26:32,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:26:32 WrapperNode [2018-11-14 18:26:32,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 18:26:32,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 18:26:32,360 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 18:26:32,360 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 18:26:32,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:26:32" (1/1) ... [2018-11-14 18:26:32,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:26:32" (1/1) ... [2018-11-14 18:26:32,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:26:32" (1/1) ... [2018-11-14 18:26:32,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:26:32" (1/1) ... [2018-11-14 18:26:32,407 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:26:32" (1/1) ... [2018-11-14 18:26:32,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:26:32" (1/1) ... [2018-11-14 18:26:32,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:26:32" (1/1) ... [2018-11-14 18:26:32,426 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 18:26:32,427 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 18:26:32,427 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 18:26:32,427 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 18:26:32,428 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:26:32" (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 18:26:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 18:26:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 18:26:32,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-14 18:26:32,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 18:26:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 18:26:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-14 18:26:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-14 18:26:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 18:26:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-14 18:26:32,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-14 18:26:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-14 18:26:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-14 18:26:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-14 18:26:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 18:26:32,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 18:26:33,072 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 18:26:33,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 06:26:33 BoogieIcfgContainer [2018-11-14 18:26:33,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 18:26:33,074 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 18:26:33,074 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 18:26:33,078 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 18:26:33,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 06:26:31" (1/3) ... [2018-11-14 18:26:33,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24516c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 06:26:33, skipping insertion in model container [2018-11-14 18:26:33,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 06:26:32" (2/3) ... [2018-11-14 18:26:33,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24516c35 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 06:26:33, skipping insertion in model container [2018-11-14 18:26:33,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 06:26:33" (3/3) ... [2018-11-14 18:26:33,082 INFO L112 eAbstractionObserver]: Analyzing ICFG terminator_01_false-unreach-call_true-termination.i [2018-11-14 18:26:33,092 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 18:26:33,099 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 18:26:33,114 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 18:26:33,145 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 18:26:33,146 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 18:26:33,146 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 18:26:33,146 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 18:26:33,146 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 18:26:33,146 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 18:26:33,146 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 18:26:33,147 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 18:26:33,147 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 18:26:33,164 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-14 18:26:33,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-14 18:26:33,170 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 18:26:33,171 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 18:26:33,173 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 18:26:33,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 18:26:33,180 INFO L82 PathProgramCache]: Analyzing trace with hash 269929347, now seen corresponding path program 1 times [2018-11-14 18:26:33,183 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-14 18:26:33,184 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 18:26:33,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 18:26:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 18:26:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 18:26:33,273 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-14 18:26:33,329 INFO L256 TraceCheckUtils]: 0: Hoare triple {24#true} call ULTIMATE.init(); {24#true} is VALID [2018-11-14 18:26:33,333 INFO L273 TraceCheckUtils]: 1: Hoare triple {24#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1]; {24#true} is VALID [2018-11-14 18:26:33,334 INFO L273 TraceCheckUtils]: 2: Hoare triple {24#true} assume true; {24#true} is VALID [2018-11-14 18:26:33,334 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {24#true} {24#true} #35#return; {24#true} is VALID [2018-11-14 18:26:33,335 INFO L256 TraceCheckUtils]: 4: Hoare triple {24#true} call #t~ret4 := main(); {24#true} is VALID [2018-11-14 18:26:33,335 INFO L273 TraceCheckUtils]: 5: Hoare triple {24#true} call ~#x~0.base, ~#x~0.offset := #Ultimate.alloc(4bv32);call write~unchecked~intINTTYPE4(0bv32, ~#x~0.base, ~#x~0.offset, 4bv32);call write~unchecked~intINTTYPE4(#t~nondet0, ~#x~0.base, ~#x~0.offset, 4bv32);havoc #t~nondet0;~p~0.base, ~p~0.offset := ~#x~0.base, ~#x~0.offset; {24#true} is VALID [2018-11-14 18:26:33,336 INFO L273 TraceCheckUtils]: 6: Hoare triple {24#true} assume !true; {25#false} is VALID [2018-11-14 18:26:33,336 INFO L256 TraceCheckUtils]: 7: Hoare triple {25#false} call __VERIFIER_assert(0bv32); {25#false} is VALID [2018-11-14 18:26:33,337 INFO L273 TraceCheckUtils]: 8: Hoare triple {25#false} ~cond := #in~cond; {25#false} is VALID [2018-11-14 18:26:33,337 INFO L273 TraceCheckUtils]: 9: Hoare triple {25#false} assume ~cond == 0bv32; {25#false} is VALID [2018-11-14 18:26:33,337 INFO L273 TraceCheckUtils]: 10: Hoare triple {25#false} assume !false; {25#false} is VALID [2018-11-14 18:26:33,340 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 18:26:33,341 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-14 18:26:33,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 18:26:33,344 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-14 18:26:33,349 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-14 18:26:33,352 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 18:26:33,356 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-14 18:26:33,424 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 18:26:33,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-14 18:26:33,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-14 18:26:33,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-14 18:26:33,437 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2018-11-14 18:26:33,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 18:26:33,636 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-11-14 18:26:33,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-14 18:26:33,636 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-14 18:26:33,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 18:26:33,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-14 18:26:33,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 36 transitions. [2018-11-14 18:26:33,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-14 18:26:33,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 36 transitions. [2018-11-14 18:26:33,653 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 36 transitions. [2018-11-14 18:26:33,964 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 18:26:33,974 INFO L225 Difference]: With dead ends: 33 [2018-11-14 18:26:33,974 INFO L226 Difference]: Without dead ends: 14 [2018-11-14 18:26:33,978 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 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 18:26:33,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-14 18:26:34,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-14 18:26:34,030 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 18:26:34,031 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14 states. Second operand 14 states. [2018-11-14 18:26:34,032 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 14 states. [2018-11-14 18:26:34,032 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 14 states. [2018-11-14 18:26:34,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 18:26:34,036 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-11-14 18:26:34,036 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-14 18:26:34,039 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 18:26:34,039 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 18:26:34,039 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 14 states. [2018-11-14 18:26:34,039 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 14 states. [2018-11-14 18:26:34,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 18:26:34,043 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2018-11-14 18:26:34,043 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-14 18:26:34,043 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 18:26:34,043 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 18:26:34,044 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 18:26:34,044 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 18:26:34,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-14 18:26:34,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2018-11-14 18:26:34,048 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2018-11-14 18:26:34,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 18:26:34,048 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2018-11-14 18:26:34,049 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-14 18:26:34,049 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2018-11-14 18:26:34,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-14 18:26:34,050 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 18:26:34,050 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 18:26:34,050 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 18:26:34,050 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 18:26:34,051 INFO L82 PathProgramCache]: Analyzing trace with hash 1525520925, now seen corresponding path program 1 times [2018-11-14 18:26:34,051 INFO L223 ckRefinementStrategy]: Switched to mode CVC4_FPBP [2018-11-14 18:26:34,051 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 18:26:34,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 18:26:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-14 18:26:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-14 18:26:34,167 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-14 18:26:34,223 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2018-11-14 18:26:34,223 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-14 18:26:34,223 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-14 18:26:34,223 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2018-11-14 18:26:34,224 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2018-11-14 18:26:34,224 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 18:26:34,224 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-14 18:26:34,224 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-14 18:26:34,224 WARN L170 areAnnotationChecker]: L16-4 has no Hoare annotation [2018-11-14 18:26:34,225 WARN L170 areAnnotationChecker]: L16-4 has no Hoare annotation [2018-11-14 18:26:34,226 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-14 18:26:34,227 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2018-11-14 18:26:34,227 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 18:26:34,227 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 18:26:34,227 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2018-11-14 18:26:34,227 WARN L170 areAnnotationChecker]: L16-5 has no Hoare annotation [2018-11-14 18:26:34,228 WARN L170 areAnnotationChecker]: L16-5 has no Hoare annotation [2018-11-14 18:26:34,228 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-14 18:26:34,228 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-14 18:26:34,228 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2018-11-14 18:26:34,228 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2018-11-14 18:26:34,228 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2018-11-14 18:26:34,229 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2018-11-14 18:26:34,229 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2018-11-14 18:26:34,229 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 18:26:34,229 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-14 18:26:34,229 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 18:26:34,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 06:26:34 BoogieIcfgContainer [2018-11-14 18:26:34,234 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-14 18:26:34,236 INFO L168 Benchmark]: Toolchain (without parser) took 2241.01 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: -710.4 MB). Peak memory consumption was 35.7 MB. Max. memory is 7.1 GB. [2018-11-14 18:26:34,238 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-11-14 18:26:34,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.80 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 18:26:34,240 INFO L168 Benchmark]: Boogie Preprocessor took 66.69 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 18:26:34,241 INFO L168 Benchmark]: RCFGBuilder took 646.46 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: -793.7 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. [2018-11-14 18:26:34,243 INFO L168 Benchmark]: TraceAbstraction took 1160.07 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: 72.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 7.1 GB. [2018-11-14 18:26:34,248 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 0.23 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 362.80 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 66.69 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 646.46 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: -793.7 MB). Peak memory consumption was 26.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1160.07 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: 72.7 MB). Peak memory consumption was 72.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 5]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L13] FCALL int x=__VERIFIER_nondet_int(); [L14] int *p = &x; VAL [p={1:0}, x={1:0}] [L16] EXPR, FCALL \read(x) VAL [\read(x)=100, p={1:0}, x={1:0}] [L16] COND FALSE !(x<100) [L19] CALL __VERIFIER_assert(0) VAL [\old(cond)=0] [L4] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L5] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 21 locations, 1 error locations. UNSAFE Result, 1.0s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 1 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...