java -ea -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 17:35:37,259 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 17:35:37,261 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 17:35:37,273 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 17:35:37,274 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 17:35:37,275 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 17:35:37,276 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 17:35:37,278 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 17:35:37,280 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 17:35:37,281 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 17:35:37,283 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 17:35:37,283 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 17:35:37,284 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 17:35:37,285 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 17:35:37,289 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 17:35:37,290 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 17:35:37,292 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 17:35:37,302 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 17:35:37,304 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 17:35:37,309 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 17:35:37,314 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 17:35:37,315 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 17:35:37,318 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-14 17:35:37,341 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-14 17:35:37,370 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 17:35:37,370 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 17:35:37,376 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 17:35:37,376 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 17:35:37,377 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 17:35:37,377 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 17:35:37,377 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 17:35:37,379 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 17:35:37,379 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 17:35:37,379 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-14 17:35:37,380 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 17:35:37,380 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 17:35:37,380 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 17:35:37,380 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 17:35:37,380 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 17:35:37,381 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 17:35:37,381 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 17:35:37,381 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 17:35:37,381 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 17:35:37,382 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 17:35:37,382 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 17:35:37,382 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 17:35:37,382 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 17:35:37,384 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 17:35:37,384 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 17:35:37,384 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 17:35:37,385 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-14 17:35:37,385 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 17:35:37,385 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-14 17:35:37,385 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 17:35:37,439 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 17:35:37,451 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 17:35:37,454 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 17:35:37,456 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 17:35:37,456 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 17:35:37,457 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-11-14 17:35:37,519 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecde3747e/e046562861124315bead8522eb9b9dd4/FLAG251a5fc5c [2018-11-14 17:35:38,042 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 17:35:38,043 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-11-14 17:35:38,050 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecde3747e/e046562861124315bead8522eb9b9dd4/FLAG251a5fc5c [2018-11-14 17:35:38,066 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecde3747e/e046562861124315bead8522eb9b9dd4 [2018-11-14 17:35:38,078 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 17:35:38,080 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 17:35:38,080 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 17:35:38,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 17:35:38,084 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 17:35:38,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:35:38" (1/1) ... [2018-11-14 17:35:38,089 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70521f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:38, skipping insertion in model container [2018-11-14 17:35:38,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:35:38" (1/1) ... [2018-11-14 17:35:38,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 17:35:38,126 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 17:35:38,345 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 17:35:38,353 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 17:35:38,382 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 17:35:38,404 INFO L195 MainTranslator]: Completed translation [2018-11-14 17:35:38,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:38 WrapperNode [2018-11-14 17:35:38,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 17:35:38,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 17:35:38,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 17:35:38,406 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 17:35:38,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:38" (1/1) ... [2018-11-14 17:35:38,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:38" (1/1) ... [2018-11-14 17:35:38,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:38" (1/1) ... [2018-11-14 17:35:38,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:38" (1/1) ... [2018-11-14 17:35:38,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:38" (1/1) ... [2018-11-14 17:35:38,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:38" (1/1) ... [2018-11-14 17:35:38,442 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:38" (1/1) ... [2018-11-14 17:35:38,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 17:35:38,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 17:35:38,450 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 17:35:38,450 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 17:35:38,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 17:35:38,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 17:35:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 17:35:38,640 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 17:35:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 17:35:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-14 17:35:38,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-14 17:35:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-14 17:35:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 17:35:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 17:35:38,641 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 17:35:39,181 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 17:35:39,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:35:39 BoogieIcfgContainer [2018-11-14 17:35:39,181 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 17:35:39,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 17:35:39,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 17:35:39,187 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 17:35:39,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:35:38" (1/3) ... [2018-11-14 17:35:39,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b28fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:35:39, skipping insertion in model container [2018-11-14 17:35:39,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:35:38" (2/3) ... [2018-11-14 17:35:39,189 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b28fb9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:35:39, skipping insertion in model container [2018-11-14 17:35:39,189 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:35:39" (3/3) ... [2018-11-14 17:35:39,191 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008_true-unreach-call.c.i.v+lhb-reducer.c [2018-11-14 17:35:39,201 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 17:35:39,210 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 17:35:39,229 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 17:35:39,260 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 17:35:39,261 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 17:35:39,261 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 17:35:39,262 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 17:35:39,262 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 17:35:39,262 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 17:35:39,262 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 17:35:39,263 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 17:35:39,263 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 17:35:39,282 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-14 17:35:39,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-14 17:35:39,289 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 17:35:39,290 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 17:35:39,293 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 17:35:39,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 17:35:39,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1883805102, now seen corresponding path program 1 times [2018-11-14 17:35:39,302 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 17:35:39,302 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 17:35:39,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:35:39,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 17:35:39,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:35:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 17:35:39,668 INFO L256 TraceCheckUtils]: 0: Hoare triple {21#true} call ULTIMATE.init(); {21#true} is VALID [2018-11-14 17:35:39,671 INFO L273 TraceCheckUtils]: 1: Hoare triple {21#true} ~__return_main~0 := 0;~__tmp_55_0~0 := 0;~__return_65~0 := 0; {21#true} is VALID [2018-11-14 17:35:39,672 INFO L273 TraceCheckUtils]: 2: Hoare triple {21#true} assume true; {21#true} is VALID [2018-11-14 17:35:39,673 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {21#true} {21#true} #33#return; {21#true} is VALID [2018-11-14 17:35:39,673 INFO L256 TraceCheckUtils]: 4: Hoare triple {21#true} call #t~ret2 := main(); {21#true} is VALID [2018-11-14 17:35:39,675 INFO L273 TraceCheckUtils]: 5: Hoare triple {21#true} havoc ~main__x~0;havoc ~main__y~0;~main__x~0 := -50;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~main__y~0 := #t~nondet1;havoc #t~nondet1; {23#(<= (+ main_~main__x~0 50) 0)} is VALID [2018-11-14 17:35:39,676 INFO L273 TraceCheckUtils]: 6: Hoare triple {23#(<= (+ main_~main__x~0 50) 0)} assume !!(-1000 < ~main__y~0); {23#(<= (+ main_~main__x~0 50) 0)} is VALID [2018-11-14 17:35:39,678 INFO L273 TraceCheckUtils]: 7: Hoare triple {23#(<= (+ main_~main__x~0 50) 0)} assume !!(~main__y~0 < 1000000); {23#(<= (+ main_~main__x~0 50) 0)} is VALID [2018-11-14 17:35:39,680 INFO L273 TraceCheckUtils]: 8: Hoare triple {23#(<= (+ main_~main__x~0 50) 0)} assume ~main__x~0 < 0;~main__x~0 := ~main__x~0 + ~main__y~0;~main____CPAchecker_TMP_0~0 := ~main__y~0;~main__y~0 := ~main__y~0 + 1;~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~0; {24#(<= (+ main_~main__x~0 51) main_~main__y~0)} is VALID [2018-11-14 17:35:39,681 INFO L273 TraceCheckUtils]: 9: Hoare triple {24#(<= (+ main_~main__x~0 51) main_~main__y~0)} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {24#(<= (+ main_~main__x~0 51) main_~main__y~0)} is VALID [2018-11-14 17:35:39,683 INFO L273 TraceCheckUtils]: 10: Hoare triple {24#(<= (+ main_~main__x~0 51) main_~main__y~0)} assume !(~main__x~0 < 0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~main__y~0 > 0 then 1 else 0);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {25#(= main_~__VERIFIER_assert__cond~0 1)} is VALID [2018-11-14 17:35:39,686 INFO L273 TraceCheckUtils]: 11: Hoare triple {25#(= main_~__VERIFIER_assert__cond~0 1)} assume ~__VERIFIER_assert__cond~0 == 0; {22#false} is VALID [2018-11-14 17:35:39,687 INFO L273 TraceCheckUtils]: 12: Hoare triple {22#false} assume !false; {22#false} is VALID [2018-11-14 17:35:39,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-14 17:35:39,693 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 17:35:39,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-14 17:35:39,699 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-14 17:35:39,702 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 17:35:39,706 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2018-11-14 17:35:39,764 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 17:35:39,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-14 17:35:39,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-14 17:35:39,774 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-14 17:35:39,776 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 5 states. [2018-11-14 17:35:40,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:35:40,751 INFO L93 Difference]: Finished difference Result 33 states and 38 transitions. [2018-11-14 17:35:40,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-14 17:35:40,752 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-11-14 17:35:40,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 17:35:40,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-14 17:35:40,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 38 transitions. [2018-11-14 17:35:40,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-11-14 17:35:40,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 38 transitions. [2018-11-14 17:35:40,772 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 38 transitions. [2018-11-14 17:35:40,885 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 17:35:40,896 INFO L225 Difference]: With dead ends: 33 [2018-11-14 17:35:40,897 INFO L226 Difference]: Without dead ends: 16 [2018-11-14 17:35:40,902 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-14 17:35:40,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-14 17:35:40,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-14 17:35:40,963 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 17:35:40,964 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand 16 states. [2018-11-14 17:35:40,964 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2018-11-14 17:35:40,965 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2018-11-14 17:35:40,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:35:40,968 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-11-14 17:35:40,968 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-14 17:35:40,969 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:35:40,969 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:35:40,969 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2018-11-14 17:35:40,970 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2018-11-14 17:35:40,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:35:40,973 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2018-11-14 17:35:40,973 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-14 17:35:40,974 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:35:40,974 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:35:40,974 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 17:35:40,974 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 17:35:40,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-14 17:35:40,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2018-11-14 17:35:40,978 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2018-11-14 17:35:40,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 17:35:40,979 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2018-11-14 17:35:40,979 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-14 17:35:40,979 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2018-11-14 17:35:40,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-14 17:35:40,980 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 17:35:40,980 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 17:35:40,981 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 17:35:40,981 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 17:35:40,981 INFO L82 PathProgramCache]: Analyzing trace with hash -2141584271, now seen corresponding path program 1 times [2018-11-14 17:35:40,981 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 17:35:40,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 17:35:40,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:35:40,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 17:35:40,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:35:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 17:35:41,200 INFO L256 TraceCheckUtils]: 0: Hoare triple {125#true} call ULTIMATE.init(); {125#true} is VALID [2018-11-14 17:35:41,201 INFO L273 TraceCheckUtils]: 1: Hoare triple {125#true} ~__return_main~0 := 0;~__tmp_55_0~0 := 0;~__return_65~0 := 0; {125#true} is VALID [2018-11-14 17:35:41,202 INFO L273 TraceCheckUtils]: 2: Hoare triple {125#true} assume true; {125#true} is VALID [2018-11-14 17:35:41,202 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {125#true} {125#true} #33#return; {125#true} is VALID [2018-11-14 17:35:41,203 INFO L256 TraceCheckUtils]: 4: Hoare triple {125#true} call #t~ret2 := main(); {125#true} is VALID [2018-11-14 17:35:41,206 INFO L273 TraceCheckUtils]: 5: Hoare triple {125#true} havoc ~main__x~0;havoc ~main__y~0;~main__x~0 := -50;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~main__y~0 := #t~nondet1;havoc #t~nondet1; {127#(<= (+ main_~main__x~0 50) 0)} is VALID [2018-11-14 17:35:41,206 INFO L273 TraceCheckUtils]: 6: Hoare triple {127#(<= (+ main_~main__x~0 50) 0)} assume !!(-1000 < ~main__y~0); {127#(<= (+ main_~main__x~0 50) 0)} is VALID [2018-11-14 17:35:41,207 INFO L273 TraceCheckUtils]: 7: Hoare triple {127#(<= (+ main_~main__x~0 50) 0)} assume !!(~main__y~0 < 1000000); {127#(<= (+ main_~main__x~0 50) 0)} is VALID [2018-11-14 17:35:41,208 INFO L273 TraceCheckUtils]: 8: Hoare triple {127#(<= (+ main_~main__x~0 50) 0)} assume ~main__x~0 < 0;~main__x~0 := ~main__x~0 + ~main__y~0;~main____CPAchecker_TMP_0~0 := ~main__y~0;~main__y~0 := ~main__y~0 + 1;~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~0; {128#(<= (+ main_~main__x~0 51) main_~main__y~0)} is VALID [2018-11-14 17:35:41,209 INFO L273 TraceCheckUtils]: 9: Hoare triple {128#(<= (+ main_~main__x~0 51) main_~main__y~0)} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {128#(<= (+ main_~main__x~0 51) main_~main__y~0)} is VALID [2018-11-14 17:35:41,209 INFO L273 TraceCheckUtils]: 10: Hoare triple {128#(<= (+ main_~main__x~0 51) main_~main__y~0)} assume ~main__x~0 < 0;~main__x~0 := ~main__x~0 + ~main__y~0;~main____CPAchecker_TMP_0~1 := ~main__y~0;~main__y~0 := ~main__y~0 + 1;~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~1; {129#(<= (+ main_~main__x~0 53) (* 2 main_~main__y~0))} is VALID [2018-11-14 17:35:41,210 INFO L273 TraceCheckUtils]: 11: Hoare triple {129#(<= (+ main_~main__x~0 53) (* 2 main_~main__y~0))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {129#(<= (+ main_~main__x~0 53) (* 2 main_~main__y~0))} is VALID [2018-11-14 17:35:41,211 INFO L273 TraceCheckUtils]: 12: Hoare triple {129#(<= (+ main_~main__x~0 53) (* 2 main_~main__y~0))} assume !(~main__x~0 < 0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~main__y~0 > 0 then 1 else 0);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {130#(= main_~__VERIFIER_assert__cond~0 1)} is VALID [2018-11-14 17:35:41,212 INFO L273 TraceCheckUtils]: 13: Hoare triple {130#(= main_~__VERIFIER_assert__cond~0 1)} assume ~__VERIFIER_assert__cond~0 == 0; {126#false} is VALID [2018-11-14 17:35:41,213 INFO L273 TraceCheckUtils]: 14: Hoare triple {126#false} assume !false; {126#false} is VALID [2018-11-14 17:35:41,215 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-14 17:35:41,216 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-14 17:35:41,216 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-14 17:35:41,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 17:35:41,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 17:35:41,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 17:35:41,305 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-14 17:35:41,934 INFO L256 TraceCheckUtils]: 0: Hoare triple {125#true} call ULTIMATE.init(); {125#true} is VALID [2018-11-14 17:35:41,935 INFO L273 TraceCheckUtils]: 1: Hoare triple {125#true} ~__return_main~0 := 0;~__tmp_55_0~0 := 0;~__return_65~0 := 0; {125#true} is VALID [2018-11-14 17:35:41,935 INFO L273 TraceCheckUtils]: 2: Hoare triple {125#true} assume true; {125#true} is VALID [2018-11-14 17:35:41,936 INFO L268 TraceCheckUtils]: 3: Hoare quadruple {125#true} {125#true} #33#return; {125#true} is VALID [2018-11-14 17:35:41,936 INFO L256 TraceCheckUtils]: 4: Hoare triple {125#true} call #t~ret2 := main(); {125#true} is VALID [2018-11-14 17:35:41,936 INFO L273 TraceCheckUtils]: 5: Hoare triple {125#true} havoc ~main__x~0;havoc ~main__y~0;~main__x~0 := -50;assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~main__y~0 := #t~nondet1;havoc #t~nondet1; {125#true} is VALID [2018-11-14 17:35:41,937 INFO L273 TraceCheckUtils]: 6: Hoare triple {125#true} assume !!(-1000 < ~main__y~0); {125#true} is VALID [2018-11-14 17:35:41,937 INFO L273 TraceCheckUtils]: 7: Hoare triple {125#true} assume !!(~main__y~0 < 1000000); {125#true} is VALID [2018-11-14 17:35:41,938 INFO L273 TraceCheckUtils]: 8: Hoare triple {125#true} assume ~main__x~0 < 0;~main__x~0 := ~main__x~0 + ~main__y~0;~main____CPAchecker_TMP_0~0 := ~main__y~0;~main__y~0 := ~main__y~0 + 1;~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~0; {158#(<= (+ main_~main__x~0 2) main_~main__y~0)} is VALID [2018-11-14 17:35:41,939 INFO L273 TraceCheckUtils]: 9: Hoare triple {158#(<= (+ main_~main__x~0 2) main_~main__y~0)} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {158#(<= (+ main_~main__x~0 2) main_~main__y~0)} is VALID [2018-11-14 17:35:41,940 INFO L273 TraceCheckUtils]: 10: Hoare triple {158#(<= (+ main_~main__x~0 2) main_~main__y~0)} assume ~main__x~0 < 0;~main__x~0 := ~main__x~0 + ~main__y~0;~main____CPAchecker_TMP_0~1 := ~main__y~0;~main__y~0 := ~main__y~0 + 1;~__tmp_55_0~0 := ~main____CPAchecker_TMP_0~1; {165#(exists ((v_main_~main__y~0_13 Int)) (and (<= (+ v_main_~main__y~0_13 1) main_~main__y~0) (<= (+ main_~main__x~0 2) (* 2 v_main_~main__y~0_13))))} is VALID [2018-11-14 17:35:41,941 INFO L273 TraceCheckUtils]: 11: Hoare triple {165#(exists ((v_main_~main__y~0_13 Int)) (and (<= (+ v_main_~main__y~0_13 1) main_~main__y~0) (<= (+ main_~main__x~0 2) (* 2 v_main_~main__y~0_13))))} ~main____CPAchecker_TMP_0~0 := ~__tmp_55_0~0; {165#(exists ((v_main_~main__y~0_13 Int)) (and (<= (+ v_main_~main__y~0_13 1) main_~main__y~0) (<= (+ main_~main__x~0 2) (* 2 v_main_~main__y~0_13))))} is VALID [2018-11-14 17:35:41,959 INFO L273 TraceCheckUtils]: 12: Hoare triple {165#(exists ((v_main_~main__y~0_13 Int)) (and (<= (+ v_main_~main__y~0_13 1) main_~main__y~0) (<= (+ main_~main__x~0 2) (* 2 v_main_~main__y~0_13))))} assume !(~main__x~0 < 0);havoc ~__tmp_1~0;~__tmp_1~0 := (if ~main__y~0 > 0 then 1 else 0);havoc ~__VERIFIER_assert__cond~0;~__VERIFIER_assert__cond~0 := ~__tmp_1~0; {130#(= main_~__VERIFIER_assert__cond~0 1)} is VALID [2018-11-14 17:35:41,974 INFO L273 TraceCheckUtils]: 13: Hoare triple {130#(= main_~__VERIFIER_assert__cond~0 1)} assume ~__VERIFIER_assert__cond~0 == 0; {126#false} is VALID [2018-11-14 17:35:41,974 INFO L273 TraceCheckUtils]: 14: Hoare triple {126#false} assume !false; {126#false} is VALID [2018-11-14 17:35:41,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-14 17:35:42,010 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-14 17:35:42,010 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 8 [2018-11-14 17:35:42,012 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-11-14 17:35:42,013 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 17:35:42,013 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2018-11-14 17:35:42,271 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 17:35:42,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-14 17:35:42,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-14 17:35:42,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-11-14 17:35:42,272 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 8 states. [2018-11-14 17:35:42,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:35:42,717 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-11-14 17:35:42,717 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-14 17:35:42,718 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2018-11-14 17:35:42,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 17:35:42,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-14 17:35:42,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 20 transitions. [2018-11-14 17:35:42,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-11-14 17:35:42,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 20 transitions. [2018-11-14 17:35:42,723 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 20 transitions. [2018-11-14 17:35:42,769 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 17:35:42,769 INFO L225 Difference]: With dead ends: 19 [2018-11-14 17:35:42,770 INFO L226 Difference]: Without dead ends: 0 [2018-11-14 17:35:42,771 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2018-11-14 17:35:42,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-14 17:35:42,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-14 17:35:42,772 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 17:35:42,772 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-14 17:35:42,772 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-14 17:35:42,772 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-14 17:35:42,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:35:42,773 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-14 17:35:42,773 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 17:35:42,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:35:42,773 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:35:42,773 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-14 17:35:42,774 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-14 17:35:42,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:35:42,774 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-14 17:35:42,774 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 17:35:42,774 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:35:42,774 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:35:42,775 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 17:35:42,775 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 17:35:42,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-14 17:35:42,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-14 17:35:42,775 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-14 17:35:42,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 17:35:42,776 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-14 17:35:42,776 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-14 17:35:42,777 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 17:35:42,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:35:42,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-14 17:35:42,896 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-14 17:35:42,896 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-14 17:35:42,896 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-14 17:35:42,896 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-14 17:35:42,897 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-14 17:35:42,897 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-14 17:35:42,897 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-14 17:35:42,897 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 9 69) the Hoare annotation is: true [2018-11-14 17:35:42,897 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 66) no Hoare annotation was computed. [2018-11-14 17:35:42,897 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 9 69) no Hoare annotation was computed. [2018-11-14 17:35:42,897 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 52) no Hoare annotation was computed. [2018-11-14 17:35:42,897 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 67) no Hoare annotation was computed. [2018-11-14 17:35:42,898 INFO L425 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-11-14 17:35:42,898 INFO L425 ceAbstractionStarter]: For program point L50(lines 50 59) no Hoare annotation was computed. [2018-11-14 17:35:42,898 INFO L425 ceAbstractionStarter]: For program point L15(lines 15 68) no Hoare annotation was computed. [2018-11-14 17:35:42,898 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 9 69) no Hoare annotation was computed. [2018-11-14 17:35:42,898 INFO L421 ceAbstractionStarter]: At program point L41(lines 28 62) the Hoare annotation is: (or (and (<= (+ main_~main__x~0 2) main_~main__y~0) (exists ((v_main_~main__y~0_13 Int)) (and (<= (+ v_main_~main__y~0_13 1) main_~main__y~0) (<= (+ main_~main__x~0 2) (* 2 v_main_~main__y~0_13))))) (<= (+ main_~main__x~0 51) main_~main__y~0)) [2018-11-14 17:35:42,898 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 61) no Hoare annotation was computed. [2018-11-14 17:35:42,900 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 17:35:42,900 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2018-11-14 17:35:42,901 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 17:35:42,901 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 17:35:42,901 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2018-11-14 17:35:42,901 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2018-11-14 17:35:42,901 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 17:35:42,901 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 17:35:42,901 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 17:35:42,901 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2018-11-14 17:35:42,902 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2018-11-14 17:35:42,902 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-14 17:35:42,902 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2018-11-14 17:35:42,902 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2018-11-14 17:35:42,902 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2018-11-14 17:35:42,902 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2018-11-14 17:35:42,902 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2018-11-14 17:35:42,902 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2018-11-14 17:35:42,902 WARN L170 areAnnotationChecker]: L50 has no Hoare annotation [2018-11-14 17:35:42,902 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2018-11-14 17:35:42,903 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2018-11-14 17:35:42,903 INFO L163 areAnnotationChecker]: CFG has 2 edges. 2 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-14 17:35:42,908 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_13,QUANTIFIED] [2018-11-14 17:35:42,909 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_13,QUANTIFIED] [2018-11-14 17:35:42,912 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_13,QUANTIFIED] [2018-11-14 17:35:42,913 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_13,QUANTIFIED] [2018-11-14 17:35:42,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:35:42 BoogieIcfgContainer [2018-11-14 17:35:42,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-14 17:35:42,917 INFO L168 Benchmark]: Toolchain (without parser) took 4838.41 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -597.9 MB). Peak memory consumption was 127.2 MB. Max. memory is 7.1 GB. [2018-11-14 17:35:42,919 INFO L168 Benchmark]: CDTParser took 0.15 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 17:35:42,920 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.81 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-11-14 17:35:42,921 INFO L168 Benchmark]: Boogie Preprocessor took 44.03 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-14 17:35:42,921 INFO L168 Benchmark]: RCFGBuilder took 731.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -765.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2018-11-14 17:35:42,922 INFO L168 Benchmark]: TraceAbstraction took 3732.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 156.5 MB). Peak memory consumption was 156.5 MB. Max. memory is 7.1 GB. [2018-11-14 17:35:42,928 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 0.15 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 324.81 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 44.03 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 731.49 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 725.1 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -765.0 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3732.55 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 156.5 MB). Peak memory consumption was 156.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_13,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_13,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 52]: 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: 28]: Loop Invariant [2018-11-14 17:35:42,942 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_13,QUANTIFIED] [2018-11-14 17:35:42,942 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_13,QUANTIFIED] [2018-11-14 17:35:42,943 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_13,QUANTIFIED] [2018-11-14 17:35:42,943 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_main_~main__y~0_13,QUANTIFIED] Derived loop invariant: (main__x + 2 <= main__y && (\exists v_main_~main__y~0_13 : int :: v_main_~main__y~0_13 + 1 <= main__y && main__x + 2 <= 2 * v_main_~main__y~0_13)) || main__x + 51 <= main__y - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 18 locations, 1 error locations. SAFE Result, 3.6s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 30 SDtfs, 13 SDslu, 86 SDs, 0 SdLazy, 49 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 30 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 40 ConstructedInterpolants, 2 QuantifiedInterpolants, 1780 SizeOfPredicates, 4 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...