java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label05_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:30:16,933 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:30:16,935 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:30:16,947 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:30:16,948 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:30:16,949 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:30:16,950 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:30:16,952 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:30:16,953 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:30:16,954 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:30:16,955 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:30:16,955 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:30:16,956 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:30:16,957 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:30:16,958 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:30:16,959 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:30:16,960 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:30:16,962 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:30:16,964 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:30:16,965 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:30:16,966 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:30:16,967 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:30:16,970 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-11-07 00:30:16,978 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-11-07 00:30:16,998 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:30:16,998 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:30:16,999 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:30:16,999 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:30:17,000 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:30:17,001 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:30:17,001 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:30:17,001 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:30:17,001 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:30:17,001 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:30:17,002 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:30:17,002 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:30:17,002 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:30:17,004 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:30:17,004 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:30:17,004 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:30:17,004 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:30:17,004 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:30:17,005 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:30:17,005 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:30:17,005 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:30:17,005 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:30:17,005 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:30:17,005 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:30:17,007 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:30:17,007 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:30:17,007 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:30:17,009 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:30:17,009 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:30:17,009 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:30:17,009 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:30:17,009 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:30:17,010 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:30:17,010 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:30:17,064 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:30:17,080 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:30:17,084 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:30:17,086 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:30:17,086 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:30:17,087 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label05_false-unreach-call.c [2018-11-07 00:30:17,167 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b081ac13d/a665507efd454843b064cc91b7cd587e/FLAG9a467d8b4 [2018-11-07 00:30:17,908 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:30:17,908 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label05_false-unreach-call.c [2018-11-07 00:30:17,934 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b081ac13d/a665507efd454843b064cc91b7cd587e/FLAG9a467d8b4 [2018-11-07 00:30:17,953 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b081ac13d/a665507efd454843b064cc91b7cd587e [2018-11-07 00:30:17,969 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:30:17,970 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:30:17,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:30:17,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:30:17,980 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:30:17,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:30:17" (1/1) ... [2018-11-07 00:30:17,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f12b8cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:17, skipping insertion in model container [2018-11-07 00:30:17,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:30:17" (1/1) ... [2018-11-07 00:30:17,998 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:30:18,098 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:30:19,000 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:30:19,006 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:30:19,255 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:30:19,279 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:30:19,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:19 WrapperNode [2018-11-07 00:30:19,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:30:19,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:30:19,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:30:19,281 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:30:19,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:19" (1/1) ... [2018-11-07 00:30:19,470 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:19" (1/1) ... [2018-11-07 00:30:19,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:30:19,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:30:19,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:30:19,480 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:30:19,491 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:19" (1/1) ... [2018-11-07 00:30:19,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:19" (1/1) ... [2018-11-07 00:30:19,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:19" (1/1) ... [2018-11-07 00:30:19,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:19" (1/1) ... [2018-11-07 00:30:19,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:19" (1/1) ... [2018-11-07 00:30:19,582 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:19" (1/1) ... [2018-11-07 00:30:19,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:19" (1/1) ... [2018-11-07 00:30:19,609 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:30:19,610 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:30:19,610 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:30:19,610 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:30:19,611 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:19" (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 [2018-11-07 00:30:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:30:19,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:30:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:30:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:30:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:30:19,679 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:30:19,679 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:30:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:30:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:30:19,680 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:30:19,680 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:30:25,668 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:30:25,669 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:30:25 BoogieIcfgContainer [2018-11-07 00:30:25,670 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:30:25,671 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:30:25,671 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:30:25,674 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:30:25,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:30:17" (1/3) ... [2018-11-07 00:30:25,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620dc7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:30:25, skipping insertion in model container [2018-11-07 00:30:25,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:30:19" (2/3) ... [2018-11-07 00:30:25,676 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@620dc7f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:30:25, skipping insertion in model container [2018-11-07 00:30:25,676 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:30:25" (3/3) ... [2018-11-07 00:30:25,678 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label05_false-unreach-call.c [2018-11-07 00:30:25,687 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:30:25,696 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:30:25,711 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:30:25,753 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:30:25,753 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:30:25,753 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:30:25,753 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:30:25,754 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:30:25,754 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:30:25,754 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:30:25,754 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:30:25,788 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 00:30:25,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2018-11-07 00:30:25,797 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:30:25,798 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:30:25,801 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:30:25,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:30:25,809 INFO L82 PathProgramCache]: Analyzing trace with hash -397266572, now seen corresponding path program 1 times [2018-11-07 00:30:25,812 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:30:25,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:25,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:30:25,869 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:25,870 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:30:25,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:30:26,257 WARN L179 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:30:26,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:30:26,391 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:30:26,391 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 00:30:26,392 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:30:26,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:30:26,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:30:26,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:30:26,430 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-07 00:30:29,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:30:29,532 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-07 00:30:29,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:30:29,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2018-11-07 00:30:29,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:30:29,576 INFO L225 Difference]: With dead ends: 1156 [2018-11-07 00:30:29,576 INFO L226 Difference]: Without dead ends: 744 [2018-11-07 00:30:29,593 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:30:29,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-07 00:30:29,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-07 00:30:29,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 00:30:29,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1317 transitions. [2018-11-07 00:30:29,727 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1317 transitions. Word has length 26 [2018-11-07 00:30:29,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:30:29,728 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1317 transitions. [2018-11-07 00:30:29,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:30:29,728 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1317 transitions. [2018-11-07 00:30:29,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2018-11-07 00:30:29,734 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:30:29,735 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:30:29,735 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:30:29,735 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:30:29,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1302498186, now seen corresponding path program 1 times [2018-11-07 00:30:29,736 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:30:29,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:29,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:30:29,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:29,738 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:30:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:30:30,065 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:30:30,066 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:30:30,066 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:30:30,066 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:30:30,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:30:30,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:30:30,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:30:30,069 INFO L87 Difference]: Start difference. First operand 744 states and 1317 transitions. Second operand 6 states. [2018-11-07 00:30:38,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:30:38,730 INFO L93 Difference]: Finished difference Result 2959 states and 5501 transitions. [2018-11-07 00:30:38,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-07 00:30:38,731 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 102 [2018-11-07 00:30:38,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:30:38,762 INFO L225 Difference]: With dead ends: 2959 [2018-11-07 00:30:38,763 INFO L226 Difference]: Without dead ends: 2221 [2018-11-07 00:30:38,780 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 00:30:38,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2221 states. [2018-11-07 00:30:38,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2221 to 2175. [2018-11-07 00:30:38,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2175 states. [2018-11-07 00:30:38,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2175 states to 2175 states and 3684 transitions. [2018-11-07 00:30:38,916 INFO L78 Accepts]: Start accepts. Automaton has 2175 states and 3684 transitions. Word has length 102 [2018-11-07 00:30:38,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:30:38,916 INFO L480 AbstractCegarLoop]: Abstraction has 2175 states and 3684 transitions. [2018-11-07 00:30:38,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:30:38,917 INFO L276 IsEmpty]: Start isEmpty. Operand 2175 states and 3684 transitions. [2018-11-07 00:30:38,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-11-07 00:30:38,922 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:30:38,922 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:30:38,923 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:30:38,923 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:30:38,923 INFO L82 PathProgramCache]: Analyzing trace with hash -583242678, now seen corresponding path program 1 times [2018-11-07 00:30:38,923 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:30:38,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:38,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:30:38,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:38,925 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:30:38,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:30:39,174 WARN L179 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:30:39,550 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:30:39,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:30:39,551 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:30:39,551 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:30:39,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:30:39,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:30:39,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:30:39,553 INFO L87 Difference]: Start difference. First operand 2175 states and 3684 transitions. Second operand 6 states. [2018-11-07 00:30:45,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:30:45,822 INFO L93 Difference]: Finished difference Result 6460 states and 11189 transitions. [2018-11-07 00:30:45,823 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:30:45,823 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 108 [2018-11-07 00:30:45,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:30:45,855 INFO L225 Difference]: With dead ends: 6460 [2018-11-07 00:30:45,856 INFO L226 Difference]: Without dead ends: 4291 [2018-11-07 00:30:45,879 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:30:45,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4291 states. [2018-11-07 00:30:45,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4291 to 4253. [2018-11-07 00:30:45,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4253 states. [2018-11-07 00:30:46,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4253 states to 4253 states and 6458 transitions. [2018-11-07 00:30:46,007 INFO L78 Accepts]: Start accepts. Automaton has 4253 states and 6458 transitions. Word has length 108 [2018-11-07 00:30:46,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:30:46,008 INFO L480 AbstractCegarLoop]: Abstraction has 4253 states and 6458 transitions. [2018-11-07 00:30:46,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:30:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 4253 states and 6458 transitions. [2018-11-07 00:30:46,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2018-11-07 00:30:46,011 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:30:46,012 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:30:46,012 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:30:46,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:30:46,012 INFO L82 PathProgramCache]: Analyzing trace with hash 722807126, now seen corresponding path program 1 times [2018-11-07 00:30:46,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:30:46,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:46,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:30:46,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:30:46,014 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:30:46,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:30:46,252 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 00:30:46,253 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:30:46,253 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:30:46,254 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 119 with the following transitions: [2018-11-07 00:30:46,257 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [287], [289], [292], [300], [308], [316], [324], [332], [340], [348], [356], [364], [372], [380], [388], [396], [404], [412], [420], [428], [436], [444], [452], [460], [468], [476], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-07 00:30:46,324 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:30:46,324 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:30:48,127 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:30:54,269 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:30:54,271 INFO L272 AbstractInterpreter]: Visited 99 different actions 288 times. Merged at 5 different actions 13 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-07 00:30:54,287 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:30:54,287 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:30:56,261 INFO L227 lantSequenceWeakener]: Weakened 53 states. On average, predicates are now at 79.11% of their original sizes. [2018-11-07 00:30:56,261 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:31:20,640 INFO L415 sIntCurrentIteration]: We unified 117 AI predicates to 117 [2018-11-07 00:31:20,640 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:31:20,641 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:31:20,641 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [4] total 20 [2018-11-07 00:31:20,641 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:31:20,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-07 00:31:20,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-07 00:31:20,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2018-11-07 00:31:20,643 INFO L87 Difference]: Start difference. First operand 4253 states and 6458 transitions. Second operand 18 states. Received shutdown request... [2018-11-07 00:34:13,093 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-11-07 00:34:13,093 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:34:13,098 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:34:13,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:34:13 BoogieIcfgContainer [2018-11-07 00:34:13,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:34:13,100 INFO L168 Benchmark]: Toolchain (without parser) took 235130.51 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 3.5 GB in the end (delta: -2.1 GB). Peak memory consumption was 499.2 MB. Max. memory is 7.1 GB. [2018-11-07 00:34:13,101 INFO L168 Benchmark]: CDTParser took 0.21 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. [2018-11-07 00:34:13,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1308.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-11-07 00:34:13,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 197.92 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -840.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2018-11-07 00:34:13,103 INFO L168 Benchmark]: Boogie Preprocessor took 130.03 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 00:34:13,104 INFO L168 Benchmark]: RCFGBuilder took 6060.09 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 273.9 MB). Peak memory consumption was 273.9 MB. Max. memory is 7.1 GB. [2018-11-07 00:34:13,105 INFO L168 Benchmark]: TraceAbstraction took 227428.23 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 3.5 GB in the end (delta: -1.6 GB). Peak memory consumption was 267.5 MB. Max. memory is 7.1 GB. [2018-11-07 00:34:13,110 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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 1308.49 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 197.92 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 724.0 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -840.3 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.03 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 6060.09 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 273.9 MB). Peak memory consumption was 273.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 227428.23 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.8 GB). Free memory was 1.9 GB in the beginning and 3.5 GB in the end (delta: -1.6 GB). Peak memory consumption was 267.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 64). Cancelled while BasicCegarLoop was constructing difference of abstraction (4253states) and FLOYD_HOARE automaton (currently 25 states, 18 states before enhancement),while ReachableStatesComputation was computing reachable states (3257 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 227.3s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 190.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 524 SDtfs, 5285 SDslu, 745 SDs, 0 SdLazy, 10343 SolverSat, 2115 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 70.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 155 GetRequests, 83 SyntacticMatches, 28 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 29.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4253occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 8.0s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9921033073206985 AbsIntWeakeningRatio, 0.17094017094017094 AbsIntAvgWeakeningVarsNumRemoved, 389.6666666666667 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 84 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 350 ConstructedInterpolants, 0 QuantifiedInterpolants, 176285 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 42/57 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown