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-Const.epf -i ../../../trunk/examples/svcomp/loop-acceleration/phases_false-unreach-call2_false-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 19:18:44,669 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 19:18:44,671 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 19:18:44,686 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 19:18:44,687 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 19:18:44,688 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 19:18:44,692 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 19:18:44,695 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 19:18:44,697 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 19:18:44,698 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 19:18:44,699 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 19:18:44,700 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 19:18:44,700 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 19:18:44,701 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 19:18:44,703 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 19:18:44,704 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 19:18:44,705 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 19:18:44,707 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 19:18:44,709 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 19:18:44,710 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 19:18:44,712 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 19:18:44,713 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 19:18:44,716 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-14 19:18:44,725 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default-Const.epf [2018-11-14 19:18:44,749 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 19:18:44,750 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 19:18:44,751 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 19:18:44,751 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 19:18:44,751 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 19:18:44,752 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 19:18:44,752 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 19:18:44,752 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 19:18:44,752 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 19:18:44,752 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-14 19:18:44,753 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 19:18:44,753 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 19:18:44,753 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 19:18:44,753 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 19:18:44,753 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 19:18:44,754 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 19:18:44,754 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 19:18:44,754 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-14 19:18:44,754 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 19:18:44,754 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 19:18:44,755 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 19:18:44,755 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 19:18:44,755 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 19:18:44,755 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 19:18:44,755 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 19:18:44,756 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 19:18:44,756 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 19:18:44,756 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-14 19:18:44,756 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 19:18:44,756 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-14 19:18:44,757 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 19:18:44,807 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 19:18:44,821 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 19:18:44,827 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 19:18:44,829 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 19:18:44,829 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 19:18:44,830 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/phases_false-unreach-call2_false-termination.i [2018-11-14 19:18:44,897 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd26ea4dd/ec5aa003a3284db7b0f652efabaa1054/FLAGd4d9f8f40 [2018-11-14 19:18:45,350 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 19:18:45,351 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/phases_false-unreach-call2_false-termination.i [2018-11-14 19:18:45,356 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd26ea4dd/ec5aa003a3284db7b0f652efabaa1054/FLAGd4d9f8f40 [2018-11-14 19:18:45,381 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd26ea4dd/ec5aa003a3284db7b0f652efabaa1054 [2018-11-14 19:18:45,394 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 19:18:45,398 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 19:18:45,400 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 19:18:45,400 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 19:18:45,407 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 19:18:45,409 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 07:18:45" (1/1) ... [2018-11-14 19:18:45,412 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27c7a8dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:18:45, skipping insertion in model container [2018-11-14 19:18:45,412 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 07:18:45" (1/1) ... [2018-11-14 19:18:45,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 19:18:45,448 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 19:18:45,645 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 19:18:45,653 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 19:18:45,673 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 19:18:45,689 INFO L195 MainTranslator]: Completed translation [2018-11-14 19:18:45,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:18:45 WrapperNode [2018-11-14 19:18:45,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 19:18:45,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 19:18:45,691 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 19:18:45,691 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 19:18:45,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:18:45" (1/1) ... [2018-11-14 19:18:45,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:18:45" (1/1) ... [2018-11-14 19:18:45,712 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:18:45" (1/1) ... [2018-11-14 19:18:45,712 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:18:45" (1/1) ... [2018-11-14 19:18:45,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:18:45" (1/1) ... [2018-11-14 19:18:45,726 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:18:45" (1/1) ... [2018-11-14 19:18:45,728 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:18:45" (1/1) ... [2018-11-14 19:18:45,729 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 19:18:45,730 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 19:18:45,730 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 19:18:45,730 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 19:18:45,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:18:45" (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 19:18:45,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 19:18:45,855 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 19:18:45,855 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-14 19:18:45,855 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 19:18:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 19:18:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2018-11-14 19:18:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2018-11-14 19:18:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-14 19:18:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 19:18:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 19:18:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 19:18:46,313 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 19:18:46,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 07:18:46 BoogieIcfgContainer [2018-11-14 19:18:46,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 19:18:46,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 19:18:46,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 19:18:46,319 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 19:18:46,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 07:18:45" (1/3) ... [2018-11-14 19:18:46,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241092fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 07:18:46, skipping insertion in model container [2018-11-14 19:18:46,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 07:18:45" (2/3) ... [2018-11-14 19:18:46,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@241092fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 07:18:46, skipping insertion in model container [2018-11-14 19:18:46,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 07:18:46" (3/3) ... [2018-11-14 19:18:46,323 INFO L112 eAbstractionObserver]: Analyzing ICFG phases_false-unreach-call2_false-termination.i [2018-11-14 19:18:46,333 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 19:18:46,342 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 19:18:46,360 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 19:18:46,392 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 19:18:46,393 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 19:18:46,393 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 19:18:46,393 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 19:18:46,393 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 19:18:46,393 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 19:18:46,394 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 19:18:46,394 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 19:18:46,394 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 19:18:46,413 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-14 19:18:46,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-14 19:18:46,420 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 19:18:46,421 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 19:18:46,423 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 19:18:46,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 19:18:46,431 INFO L82 PathProgramCache]: Analyzing trace with hash -1994259344, now seen corresponding path program 1 times [2018-11-14 19:18:46,436 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 19:18:46,437 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 19:18:46,493 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:18:46,494 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 19:18:46,494 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:18:46,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 19:18:46,571 INFO L256 TraceCheckUtils]: 0: Hoare triple {23#true} call ULTIMATE.init(); {23#true} is VALID [2018-11-14 19:18:46,575 INFO L273 TraceCheckUtils]: 1: Hoare triple {23#true} assume true; {23#true} is VALID [2018-11-14 19:18:46,575 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {23#true} {23#true} #42#return; {23#true} is VALID [2018-11-14 19:18:46,576 INFO L256 TraceCheckUtils]: 3: Hoare triple {23#true} call #t~ret3 := main(); {23#true} is VALID [2018-11-14 19:18:46,576 INFO L273 TraceCheckUtils]: 4: Hoare triple {23#true} ~x~0 := 1;~y~0 := #t~nondet1;havoc #t~nondet1; {23#true} is VALID [2018-11-14 19:18:46,576 INFO L273 TraceCheckUtils]: 5: Hoare triple {23#true} assume !!(~y~0 % 4294967296 > 0); {23#true} is VALID [2018-11-14 19:18:46,584 INFO L273 TraceCheckUtils]: 6: Hoare triple {23#true} assume !true; {24#false} is VALID [2018-11-14 19:18:46,585 INFO L256 TraceCheckUtils]: 7: Hoare triple {24#false} call __VERIFIER_assert((if ~x~0 % 4294967296 != ~y~0 % 4294967296 then 1 else 0)); {24#false} is VALID [2018-11-14 19:18:46,585 INFO L273 TraceCheckUtils]: 8: Hoare triple {24#false} ~cond := #in~cond; {24#false} is VALID [2018-11-14 19:18:46,586 INFO L273 TraceCheckUtils]: 9: Hoare triple {24#false} assume ~cond == 0; {24#false} is VALID [2018-11-14 19:18:46,586 INFO L273 TraceCheckUtils]: 10: Hoare triple {24#false} assume !false; {24#false} is VALID [2018-11-14 19:18:46,589 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 19:18:46,592 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 19:18:46,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-14 19:18:46,597 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-14 19:18:46,601 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 19:18:46,604 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2018-11-14 19:18:46,667 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 19:18:46,667 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-14 19:18:46,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-14 19:18:46,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-14 19:18:46,679 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-11-14 19:18:46,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:18:46,765 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-11-14 19:18:46,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-14 19:18:46,765 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2018-11-14 19:18:46,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 19:18:46,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-14 19:18:46,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 36 transitions. [2018-11-14 19:18:46,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2018-11-14 19:18:46,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 36 transitions. [2018-11-14 19:18:46,782 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 36 transitions. [2018-11-14 19:18:47,136 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 19:18:47,147 INFO L225 Difference]: With dead ends: 31 [2018-11-14 19:18:47,148 INFO L226 Difference]: Without dead ends: 14 [2018-11-14 19:18:47,151 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-14 19:18:47,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-14 19:18:47,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-14 19:18:47,277 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 19:18:47,278 INFO L82 GeneralOperation]: Start isEquivalent. First operand 14 states. Second operand 14 states. [2018-11-14 19:18:47,278 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 14 states. [2018-11-14 19:18:47,279 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 14 states. [2018-11-14 19:18:47,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:18:47,283 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2018-11-14 19:18:47,283 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-11-14 19:18:47,284 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:18:47,284 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 19:18:47,284 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 14 states. [2018-11-14 19:18:47,285 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 14 states. [2018-11-14 19:18:47,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 19:18:47,288 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2018-11-14 19:18:47,288 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-11-14 19:18:47,288 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 19:18:47,289 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 19:18:47,289 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 19:18:47,289 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 19:18:47,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-14 19:18:47,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-11-14 19:18:47,293 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2018-11-14 19:18:47,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 19:18:47,294 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-11-14 19:18:47,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-14 19:18:47,295 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-11-14 19:18:47,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-11-14 19:18:47,296 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 19:18:47,296 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 19:18:47,296 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 19:18:47,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 19:18:47,297 INFO L82 PathProgramCache]: Analyzing trace with hash -2119643788, now seen corresponding path program 1 times [2018-11-14 19:18:47,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 19:18:47,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 19:18:47,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:18:47,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 19:18:47,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 19:18:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-14 19:18:47,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-14 19:18:47,345 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-14 19:18:47,367 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2018-11-14 19:18:47,367 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-14 19:18:47,367 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2018-11-14 19:18:47,368 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2018-11-14 19:18:47,368 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2018-11-14 19:18:47,368 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 19:18:47,368 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-14 19:18:47,368 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2018-11-14 19:18:47,368 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2018-11-14 19:18:47,368 WARN L170 areAnnotationChecker]: L13 has no Hoare annotation [2018-11-14 19:18:47,369 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-14 19:18:47,369 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2018-11-14 19:18:47,369 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 19:18:47,369 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 19:18:47,369 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2018-11-14 19:18:47,369 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2018-11-14 19:18:47,370 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2018-11-14 19:18:47,370 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2018-11-14 19:18:47,370 WARN L170 areAnnotationChecker]: L5-2 has no Hoare annotation [2018-11-14 19:18:47,370 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-14 19:18:47,370 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2018-11-14 19:18:47,370 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2018-11-14 19:18:47,370 WARN L170 areAnnotationChecker]: L14-3 has no Hoare annotation [2018-11-14 19:18:47,371 WARN L170 areAnnotationChecker]: L14-3 has no Hoare annotation [2018-11-14 19:18:47,371 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2018-11-14 19:18:47,371 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2018-11-14 19:18:47,371 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2018-11-14 19:18:47,371 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 19:18:47,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 07:18:47 BoogieIcfgContainer [2018-11-14 19:18:47,374 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-14 19:18:47,376 INFO L168 Benchmark]: Toolchain (without parser) took 1980.72 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -739.0 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2018-11-14 19:18:47,378 INFO L168 Benchmark]: CDTParser took 0.22 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 19:18:47,379 INFO L168 Benchmark]: CACSL2BoogieTranslator took 290.94 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 19:18:47,380 INFO L168 Benchmark]: Boogie Preprocessor took 38.32 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 19:18:47,380 INFO L168 Benchmark]: RCFGBuilder took 584.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2018-11-14 19:18:47,381 INFO L168 Benchmark]: TraceAbstraction took 1059.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. [2018-11-14 19:18:47,385 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 0.22 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 290.94 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 38.32 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 584.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 740.3 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -789.9 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1059.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 40.3 MB). Peak memory consumption was 40.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L11] unsigned int x = 1; [L12] unsigned int y = __VERIFIER_nondet_uint(); [L13] COND FALSE !(!(y > 0)) VAL [x=1, y=1] [L14] COND FALSE !(x < y) VAL [x=1, y=1] [L21] CALL __VERIFIER_assert(x != y) VAL [\old(cond)=0] [L5] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L6] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. UNSAFE Result, 0.9s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...