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/ldv-regression/test_cut_trace_true-termination.c_true-unreach-call.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-370d6ab [2018-11-14 17:22:52,577 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-14 17:22:52,579 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-14 17:22:52,591 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-14 17:22:52,592 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-14 17:22:52,593 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-14 17:22:52,594 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-14 17:22:52,596 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-14 17:22:52,598 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-14 17:22:52,599 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-14 17:22:52,600 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-14 17:22:52,600 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-14 17:22:52,601 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-14 17:22:52,602 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-14 17:22:52,603 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-14 17:22:52,604 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-14 17:22:52,605 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-14 17:22:52,607 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-14 17:22:52,609 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-14 17:22:52,611 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-14 17:22:52,612 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-14 17:22:52,613 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-14 17:22:52,615 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-14 17:22:52,629 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 17:22:52,657 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-14 17:22:52,657 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-14 17:22:52,658 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-14 17:22:52,659 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-14 17:22:52,659 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-14 17:22:52,660 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-14 17:22:52,660 INFO L133 SettingsManager]: * Use SBE=true [2018-11-14 17:22:52,660 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-14 17:22:52,660 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-14 17:22:52,660 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-14 17:22:52,662 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-14 17:22:52,662 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-14 17:22:52,662 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-14 17:22:52,662 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-14 17:22:52,662 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-14 17:22:52,663 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-14 17:22:52,663 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-14 17:22:52,663 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-14 17:22:52,663 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-14 17:22:52,663 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-14 17:22:52,664 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-14 17:22:52,664 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-14 17:22:52,664 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-14 17:22:52,664 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-14 17:22:52,664 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-14 17:22:52,665 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-14 17:22:52,666 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-14 17:22:52,666 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-14 17:22:52,666 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-14 17:22:52,667 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-14 17:22:52,717 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-14 17:22:52,735 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-14 17:22:52,740 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-14 17:22:52,742 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-14 17:22:52,742 INFO L276 PluginConnector]: CDTParser initialized [2018-11-14 17:22:52,743 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_cut_trace_true-termination.c_true-unreach-call.i [2018-11-14 17:22:52,797 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7684e052/861d3e576188495694666292474638ce/FLAG099eced79 [2018-11-14 17:22:53,247 INFO L298 CDTParser]: Found 1 translation units. [2018-11-14 17:22:53,248 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_cut_trace_true-termination.c_true-unreach-call.i [2018-11-14 17:22:53,254 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7684e052/861d3e576188495694666292474638ce/FLAG099eced79 [2018-11-14 17:22:53,272 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e7684e052/861d3e576188495694666292474638ce [2018-11-14 17:22:53,283 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-14 17:22:53,285 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-11-14 17:22:53,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-14 17:22:53,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-14 17:22:53,290 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-14 17:22:53,292 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:22:53" (1/1) ... [2018-11-14 17:22:53,295 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@494743a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:53, skipping insertion in model container [2018-11-14 17:22:53,295 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.11 05:22:53" (1/1) ... [2018-11-14 17:22:53,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-14 17:22:53,328 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-14 17:22:53,531 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 17:22:53,541 INFO L191 MainTranslator]: Completed pre-run [2018-11-14 17:22:53,562 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-14 17:22:53,581 INFO L195 MainTranslator]: Completed translation [2018-11-14 17:22:53,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:53 WrapperNode [2018-11-14 17:22:53,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-14 17:22:53,583 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-14 17:22:53,583 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-14 17:22:53,583 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-14 17:22:53,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:53" (1/1) ... [2018-11-14 17:22:53,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:53" (1/1) ... [2018-11-14 17:22:53,606 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:53" (1/1) ... [2018-11-14 17:22:53,607 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:53" (1/1) ... [2018-11-14 17:22:53,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:53" (1/1) ... [2018-11-14 17:22:53,615 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:53" (1/1) ... [2018-11-14 17:22:53,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:53" (1/1) ... [2018-11-14 17:22:53,619 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-14 17:22:53,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-14 17:22:53,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-14 17:22:53,620 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-14 17:22:53,621 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:53" (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 17:22:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-14 17:22:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-14 17:22:53,692 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2018-11-14 17:22:53,693 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-14 17:22:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-14 17:22:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2018-11-14 17:22:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-14 17:22:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-14 17:22:53,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-14 17:22:54,111 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-14 17:22:54,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:22:54 BoogieIcfgContainer [2018-11-14 17:22:54,112 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-14 17:22:54,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-14 17:22:54,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-14 17:22:54,116 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-14 17:22:54,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.11 05:22:53" (1/3) ... [2018-11-14 17:22:54,117 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657bea43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:22:54, skipping insertion in model container [2018-11-14 17:22:54,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.11 05:22:53" (2/3) ... [2018-11-14 17:22:54,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@657bea43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.11 05:22:54, skipping insertion in model container [2018-11-14 17:22:54,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.11 05:22:54" (3/3) ... [2018-11-14 17:22:54,120 INFO L112 eAbstractionObserver]: Analyzing ICFG test_cut_trace_true-termination.c_true-unreach-call.i [2018-11-14 17:22:54,130 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-14 17:22:54,139 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-14 17:22:54,157 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-14 17:22:54,191 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-14 17:22:54,192 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-14 17:22:54,192 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-14 17:22:54,192 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-14 17:22:54,192 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-14 17:22:54,192 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-14 17:22:54,193 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-14 17:22:54,193 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-14 17:22:54,193 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-14 17:22:54,221 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2018-11-14 17:22:54,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-14 17:22:54,232 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 17:22:54,233 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 17:22:54,236 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 17:22:54,244 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 17:22:54,245 INFO L82 PathProgramCache]: Analyzing trace with hash -417355086, now seen corresponding path program 1 times [2018-11-14 17:22:54,247 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 17:22:54,248 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 17:22:54,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:22:54,296 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 17:22:54,296 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:22:54,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 17:22:54,472 INFO L256 TraceCheckUtils]: 0: Hoare triple {22#true} call ULTIMATE.init(); {22#true} is VALID [2018-11-14 17:22:54,475 INFO L273 TraceCheckUtils]: 1: Hoare triple {22#true} assume true; {22#true} is VALID [2018-11-14 17:22:54,476 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {22#true} {22#true} #26#return; {22#true} is VALID [2018-11-14 17:22:54,476 INFO L256 TraceCheckUtils]: 3: Hoare triple {22#true} call #t~ret0 := main(); {22#true} is VALID [2018-11-14 17:22:54,478 INFO L273 TraceCheckUtils]: 4: Hoare triple {22#true} havoc ~z~0;havoc ~a~0;~z~0 := 0; {24#(= main_~z~0 0)} is VALID [2018-11-14 17:22:54,480 INFO L273 TraceCheckUtils]: 5: Hoare triple {24#(= main_~z~0 0)} assume !(~z~0 == 0); {23#false} is VALID [2018-11-14 17:22:54,480 INFO L256 TraceCheckUtils]: 6: Hoare triple {23#false} call __blast_assert(); {23#false} is VALID [2018-11-14 17:22:54,480 INFO L273 TraceCheckUtils]: 7: Hoare triple {23#false} assume !false; {23#false} is VALID [2018-11-14 17:22:54,483 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 17:22:54,485 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 17:22:54,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-14 17:22:54,490 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-14 17:22:54,493 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 17:22:54,497 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2018-11-14 17:22:54,574 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 17:22:54,574 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-14 17:22:54,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-14 17:22:54,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-14 17:22:54,585 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2018-11-14 17:22:54,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:22:54,702 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2018-11-14 17:22:54,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-14 17:22:54,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-14 17:22:54,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 17:22:54,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-14 17:22:54,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2018-11-14 17:22:54,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2018-11-14 17:22:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2018-11-14 17:22:54,718 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 32 transitions. [2018-11-14 17:22:54,982 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 17:22:54,996 INFO L225 Difference]: With dead ends: 29 [2018-11-14 17:22:54,997 INFO L226 Difference]: Without dead ends: 11 [2018-11-14 17:22:55,002 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-14 17:22:55,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-11-14 17:22:55,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-14 17:22:55,063 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 17:22:55,064 INFO L82 GeneralOperation]: Start isEquivalent. First operand 11 states. Second operand 11 states. [2018-11-14 17:22:55,064 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 11 states. [2018-11-14 17:22:55,064 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 11 states. [2018-11-14 17:22:55,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:22:55,068 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2018-11-14 17:22:55,068 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-11-14 17:22:55,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:22:55,069 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:22:55,069 INFO L74 IsIncluded]: Start isIncluded. First operand 11 states. Second operand 11 states. [2018-11-14 17:22:55,069 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 11 states. [2018-11-14 17:22:55,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:22:55,074 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2018-11-14 17:22:55,074 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-11-14 17:22:55,074 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:22:55,075 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:22:55,075 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 17:22:55,075 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 17:22:55,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-14 17:22:55,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2018-11-14 17:22:55,079 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 8 [2018-11-14 17:22:55,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 17:22:55,079 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2018-11-14 17:22:55,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-14 17:22:55,081 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-11-14 17:22:55,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-14 17:22:55,081 INFO L367 BasicCegarLoop]: Found error trace [2018-11-14 17:22:55,081 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-14 17:22:55,082 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-14 17:22:55,082 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-14 17:22:55,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1648524013, now seen corresponding path program 1 times [2018-11-14 17:22:55,083 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-14 17:22:55,083 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-14 17:22:55,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:22:55,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-14 17:22:55,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-14 17:22:55,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-14 17:22:55,342 INFO L256 TraceCheckUtils]: 0: Hoare triple {104#true} call ULTIMATE.init(); {104#true} is VALID [2018-11-14 17:22:55,342 INFO L273 TraceCheckUtils]: 1: Hoare triple {104#true} assume true; {104#true} is VALID [2018-11-14 17:22:55,342 INFO L268 TraceCheckUtils]: 2: Hoare quadruple {104#true} {104#true} #26#return; {104#true} is VALID [2018-11-14 17:22:55,343 INFO L256 TraceCheckUtils]: 3: Hoare triple {104#true} call #t~ret0 := main(); {104#true} is VALID [2018-11-14 17:22:55,343 INFO L273 TraceCheckUtils]: 4: Hoare triple {104#true} havoc ~z~0;havoc ~a~0;~z~0 := 0; {106#(and (<= 0 main_~z~0) (<= main_~z~0 0))} is VALID [2018-11-14 17:22:55,346 INFO L273 TraceCheckUtils]: 5: Hoare triple {106#(and (<= 0 main_~z~0) (<= main_~z~0 0))} assume ~z~0 == 0; {106#(and (<= 0 main_~z~0) (<= main_~z~0 0))} is VALID [2018-11-14 17:22:55,347 INFO L273 TraceCheckUtils]: 6: Hoare triple {106#(and (<= 0 main_~z~0) (<= main_~z~0 0))} ~a~0 := ~z~0; {107#(and (<= main_~a~0 0) (<= 0 main_~a~0))} is VALID [2018-11-14 17:22:55,353 INFO L273 TraceCheckUtils]: 7: Hoare triple {107#(and (<= main_~a~0 0) (<= 0 main_~a~0))} assume !(~a~0 == 0); {105#false} is VALID [2018-11-14 17:22:55,354 INFO L256 TraceCheckUtils]: 8: Hoare triple {105#false} call __blast_assert(); {105#false} is VALID [2018-11-14 17:22:55,354 INFO L273 TraceCheckUtils]: 9: Hoare triple {105#false} assume !false; {105#false} is VALID [2018-11-14 17:22:55,355 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 17:22:55,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-14 17:22:55,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-14 17:22:55,357 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-14 17:22:55,358 INFO L84 Accepts]: Finished accepts. word is accepted. [2018-11-14 17:22:55,358 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2018-11-14 17:22:55,403 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 17:22:55,403 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-14 17:22:55,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-14 17:22:55,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-14 17:22:55,404 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 4 states. [2018-11-14 17:22:55,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:22:55,591 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2018-11-14 17:22:55,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-14 17:22:55,592 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-14 17:22:55,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-14 17:22:55,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-14 17:22:55,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-11-14 17:22:55,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-11-14 17:22:55,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 10 transitions. [2018-11-14 17:22:55,596 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 10 transitions. [2018-11-14 17:22:55,644 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2018-11-14 17:22:55,645 INFO L225 Difference]: With dead ends: 11 [2018-11-14 17:22:55,645 INFO L226 Difference]: Without dead ends: 0 [2018-11-14 17:22:55,646 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-14 17:22:55,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-14 17:22:55,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-14 17:22:55,646 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2018-11-14 17:22:55,646 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2018-11-14 17:22:55,647 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-14 17:22:55,647 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-14 17:22:55,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:22:55,647 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-14 17:22:55,647 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 17:22:55,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:22:55,647 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:22:55,647 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2018-11-14 17:22:55,648 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2018-11-14 17:22:55,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-14 17:22:55,648 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2018-11-14 17:22:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 17:22:55,648 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:22:55,648 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2018-11-14 17:22:55,648 INFO L88 GeneralOperation]: Finished isEquivalent. [2018-11-14 17:22:55,648 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2018-11-14 17:22:55,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-14 17:22:55,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-14 17:22:55,649 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-14 17:22:55,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-14 17:22:55,649 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-14 17:22:55,649 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-14 17:22:55,649 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-14 17:22:55,649 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-14 17:22:55,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-14 17:22:55,705 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-14 17:22:55,705 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-14 17:22:55,705 INFO L425 ceAbstractionStarter]: For program point __blast_assertEXIT(lines 4 7) no Hoare annotation was computed. [2018-11-14 17:22:55,706 INFO L425 ceAbstractionStarter]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-11-14 17:22:55,706 INFO L425 ceAbstractionStarter]: For program point __blast_assertFINAL(lines 4 7) no Hoare annotation was computed. [2018-11-14 17:22:55,706 INFO L428 ceAbstractionStarter]: At program point __blast_assertENTRY(lines 4 7) the Hoare annotation is: true [2018-11-14 17:22:55,706 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-14 17:22:55,706 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-14 17:22:55,706 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-14 17:22:55,706 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-14 17:22:55,706 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 20) the Hoare annotation is: true [2018-11-14 17:22:55,707 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 20) no Hoare annotation was computed. [2018-11-14 17:22:55,707 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-14 17:22:55,707 INFO L425 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2018-11-14 17:22:55,707 INFO L421 ceAbstractionStarter]: At program point L18-2(line 18) the Hoare annotation is: false [2018-11-14 17:22:55,707 INFO L425 ceAbstractionStarter]: For program point L18-3(line 18) no Hoare annotation was computed. [2018-11-14 17:22:55,707 INFO L421 ceAbstractionStarter]: At program point L16-2(line 16) the Hoare annotation is: false [2018-11-14 17:22:55,707 INFO L425 ceAbstractionStarter]: For program point L16-3(line 16) no Hoare annotation was computed. [2018-11-14 17:22:55,707 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 20) no Hoare annotation was computed. [2018-11-14 17:22:55,709 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 17:22:55,709 WARN L170 areAnnotationChecker]: __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION has no Hoare annotation [2018-11-14 17:22:55,709 WARN L170 areAnnotationChecker]: __blast_assertFINAL has no Hoare annotation [2018-11-14 17:22:55,709 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2018-11-14 17:22:55,710 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2018-11-14 17:22:55,710 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 17:22:55,710 WARN L170 areAnnotationChecker]: __blast_assertFINAL has no Hoare annotation [2018-11-14 17:22:55,710 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2018-11-14 17:22:55,710 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2018-11-14 17:22:55,710 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2018-11-14 17:22:55,710 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2018-11-14 17:22:55,710 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2018-11-14 17:22:55,711 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2018-11-14 17:22:55,711 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2018-11-14 17:22:55,711 WARN L170 areAnnotationChecker]: L18-3 has no Hoare annotation [2018-11-14 17:22:55,711 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2018-11-14 17:22:55,711 WARN L170 areAnnotationChecker]: L18 has no Hoare annotation [2018-11-14 17:22:55,711 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2018-11-14 17:22:55,711 WARN L170 areAnnotationChecker]: L18-3 has no Hoare annotation [2018-11-14 17:22:55,711 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2018-11-14 17:22:55,712 INFO L163 areAnnotationChecker]: CFG has 4 edges. 4 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2018-11-14 17:22:55,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.11 05:22:55 BoogieIcfgContainer [2018-11-14 17:22:55,714 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-14 17:22:55,716 INFO L168 Benchmark]: Toolchain (without parser) took 2432.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 774.4 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -754.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2018-11-14 17:22:55,718 INFO L168 Benchmark]: CDTParser took 0.19 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 17:22:55,719 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.04 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 17:22:55,719 INFO L168 Benchmark]: Boogie Preprocessor took 35.87 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 17:22:55,720 INFO L168 Benchmark]: RCFGBuilder took 492.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 774.4 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -835.3 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-11-14 17:22:55,721 INFO L168 Benchmark]: TraceAbstraction took 1601.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 70.2 MB). Peak memory consumption was 70.2 MB. Max. memory is 7.1 GB. [2018-11-14 17:22:55,725 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 0.19 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 296.04 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 35.87 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 492.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 774.4 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -835.3 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1601.52 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 70.2 MB). Peak memory consumption was 70.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 18 SDtfs, 7 SDslu, 16 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 7 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 306 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...