java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-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/Problem17_label26_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 18:52:40,769 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 18:52:40,771 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 18:52:40,784 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 18:52:40,784 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 18:52:40,786 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 18:52:40,787 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 18:52:40,789 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 18:52:40,791 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 18:52:40,791 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 18:52:40,792 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 18:52:40,793 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 18:52:40,794 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 18:52:40,794 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 18:52:40,796 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 18:52:40,796 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 18:52:40,797 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 18:52:40,799 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 18:52:40,801 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 18:52:40,803 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 18:52:40,804 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 18:52:40,806 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 18:52:40,808 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-24 18:52:40,818 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 18:52:40,835 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 18:52:40,836 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 18:52:40,837 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 18:52:40,837 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 18:52:40,837 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 18:52:40,837 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 18:52:40,837 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 18:52:40,838 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 18:52:40,838 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 18:52:40,838 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 18:52:40,839 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 18:52:40,839 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 18:52:40,839 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 18:52:40,841 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 18:52:40,841 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 18:52:40,841 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 18:52:40,841 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 18:52:40,841 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 18:52:40,842 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 18:52:40,842 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 18:52:40,842 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 18:52:40,842 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 18:52:40,842 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 18:52:40,844 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 18:52:40,844 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 18:52:40,844 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 18:52:40,845 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 18:52:40,845 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 18:52:40,845 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 18:52:40,845 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 18:52:40,845 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 18:52:40,846 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 18:52:40,846 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 18:52:40,846 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 18:52:40,919 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 18:52:40,937 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 18:52:40,942 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 18:52:40,944 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 18:52:40,945 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 18:52:40,946 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label26_false-unreach-call.c [2018-10-24 18:52:41,018 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ba06e3ad2/31601ce9fe8f4a308ccd4b98a8753fd9/FLAGac6b1cd9b [2018-10-24 18:52:41,814 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 18:52:41,816 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label26_false-unreach-call.c [2018-10-24 18:52:41,840 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ba06e3ad2/31601ce9fe8f4a308ccd4b98a8753fd9/FLAGac6b1cd9b [2018-10-24 18:52:41,858 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ba06e3ad2/31601ce9fe8f4a308ccd4b98a8753fd9 [2018-10-24 18:52:41,871 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 18:52:41,872 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 18:52:41,874 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 18:52:41,874 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 18:52:41,878 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 18:52:41,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:52:41" (1/1) ... [2018-10-24 18:52:41,883 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8de4687 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:41, skipping insertion in model container [2018-10-24 18:52:41,883 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 06:52:41" (1/1) ... [2018-10-24 18:52:41,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 18:52:42,014 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 18:52:43,227 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:52:43,232 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 18:52:43,693 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 18:52:43,716 INFO L193 MainTranslator]: Completed translation [2018-10-24 18:52:43,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:43 WrapperNode [2018-10-24 18:52:43,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 18:52:43,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 18:52:43,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 18:52:43,718 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 18:52:43,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:43" (1/1) ... [2018-10-24 18:52:43,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:43" (1/1) ... [2018-10-24 18:52:44,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 18:52:44,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 18:52:44,332 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 18:52:44,333 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 18:52:44,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:43" (1/1) ... [2018-10-24 18:52:44,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:43" (1/1) ... [2018-10-24 18:52:44,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:43" (1/1) ... [2018-10-24 18:52:44,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:43" (1/1) ... [2018-10-24 18:52:44,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:43" (1/1) ... [2018-10-24 18:52:44,553 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:43" (1/1) ... [2018-10-24 18:52:44,621 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:43" (1/1) ... [2018-10-24 18:52:44,688 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 18:52:44,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 18:52:44,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 18:52:44,689 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 18:52:44,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:43" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-24 18:52:44,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 18:52:44,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 18:52:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 18:52:44,766 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 18:52:44,766 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 18:52:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 18:52:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 18:52:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 18:52:44,767 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 18:52:44,767 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 18:52:56,019 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 18:52:56,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:52:56 BoogieIcfgContainer [2018-10-24 18:52:56,020 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 18:52:56,022 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 18:52:56,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 18:52:56,025 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 18:52:56,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 06:52:41" (1/3) ... [2018-10-24 18:52:56,026 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b3a4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:52:56, skipping insertion in model container [2018-10-24 18:52:56,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 06:52:43" (2/3) ... [2018-10-24 18:52:56,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46b3a4d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 06:52:56, skipping insertion in model container [2018-10-24 18:52:56,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 06:52:56" (3/3) ... [2018-10-24 18:52:56,029 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label26_false-unreach-call.c [2018-10-24 18:52:56,039 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 18:52:56,049 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 18:52:56,067 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 18:52:56,110 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 18:52:56,111 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 18:52:56,111 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 18:52:56,111 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 18:52:56,111 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 18:52:56,111 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 18:52:56,111 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 18:52:56,112 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 18:52:56,148 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-10-24 18:52:56,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-10-24 18:52:56,156 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:52:56,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 18:52:56,159 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:52:56,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:52:56,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1567486694, now seen corresponding path program 1 times [2018-10-24 18:52:56,168 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:52:56,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:52:56,223 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:52:56,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:52:56,224 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:52:56,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:52:56,688 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-10-24 18:52:56,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:52:56,700 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:52:56,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 18:52:56,700 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:52:56,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 18:52:56,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 18:52:56,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:52:56,726 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-10-24 18:53:07,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:53:07,030 INFO L93 Difference]: Finished difference Result 2162 states and 4007 transitions. [2018-10-24 18:53:07,032 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 18:53:07,033 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2018-10-24 18:53:07,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:53:07,068 INFO L225 Difference]: With dead ends: 2162 [2018-10-24 18:53:07,068 INFO L226 Difference]: Without dead ends: 1552 [2018-10-24 18:53:07,081 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 18:53:07,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2018-10-24 18:53:07,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1525. [2018-10-24 18:53:07,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2018-10-24 18:53:07,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2696 transitions. [2018-10-24 18:53:07,275 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2696 transitions. Word has length 35 [2018-10-24 18:53:07,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:53:07,276 INFO L481 AbstractCegarLoop]: Abstraction has 1525 states and 2696 transitions. [2018-10-24 18:53:07,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 18:53:07,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2696 transitions. [2018-10-24 18:53:07,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2018-10-24 18:53:07,292 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:53:07,293 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:53:07,293 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:53:07,294 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:53:07,294 INFO L82 PathProgramCache]: Analyzing trace with hash -621481607, now seen corresponding path program 1 times [2018-10-24 18:53:07,294 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:53:07,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:07,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:53:07,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:07,298 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:53:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:53:07,708 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:53:07,708 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:53:07,709 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:53:07,709 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:53:07,711 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:53:07,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:53:07,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:53:07,712 INFO L87 Difference]: Start difference. First operand 1525 states and 2696 transitions. Second operand 6 states. [2018-10-24 18:53:28,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:53:28,972 INFO L93 Difference]: Finished difference Result 5786 states and 10682 transitions. [2018-10-24 18:53:28,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:53:28,974 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 114 [2018-10-24 18:53:28,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:53:29,009 INFO L225 Difference]: With dead ends: 5786 [2018-10-24 18:53:29,010 INFO L226 Difference]: Without dead ends: 4267 [2018-10-24 18:53:29,030 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-10-24 18:53:29,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4267 states. [2018-10-24 18:53:29,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4267 to 4243. [2018-10-24 18:53:29,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4243 states. [2018-10-24 18:53:29,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4243 states to 4243 states and 6361 transitions. [2018-10-24 18:53:29,182 INFO L78 Accepts]: Start accepts. Automaton has 4243 states and 6361 transitions. Word has length 114 [2018-10-24 18:53:29,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:53:29,183 INFO L481 AbstractCegarLoop]: Abstraction has 4243 states and 6361 transitions. [2018-10-24 18:53:29,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:53:29,183 INFO L276 IsEmpty]: Start isEmpty. Operand 4243 states and 6361 transitions. [2018-10-24 18:53:29,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2018-10-24 18:53:29,186 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:53:29,187 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:53:29,187 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:53:29,187 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:53:29,187 INFO L82 PathProgramCache]: Analyzing trace with hash 685304039, now seen corresponding path program 1 times [2018-10-24 18:53:29,188 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:53:29,188 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:29,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:53:29,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:29,189 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:53:29,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:53:29,474 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:53:29,580 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 18:53:29,580 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 18:53:29,580 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 18:53:29,580 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:53:29,581 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 18:53:29,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 18:53:29,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 18:53:29,582 INFO L87 Difference]: Start difference. First operand 4243 states and 6361 transitions. Second operand 6 states. [2018-10-24 18:53:35,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 18:53:35,371 INFO L93 Difference]: Finished difference Result 12712 states and 20702 transitions. [2018-10-24 18:53:35,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 18:53:35,372 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 115 [2018-10-24 18:53:35,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 18:53:35,435 INFO L225 Difference]: With dead ends: 12712 [2018-10-24 18:53:35,435 INFO L226 Difference]: Without dead ends: 8475 [2018-10-24 18:53:35,460 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 18:53:35,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8475 states. [2018-10-24 18:53:35,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8475 to 8390. [2018-10-24 18:53:35,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8390 states. [2018-10-24 18:53:35,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8390 states to 8390 states and 12580 transitions. [2018-10-24 18:53:35,722 INFO L78 Accepts]: Start accepts. Automaton has 8390 states and 12580 transitions. Word has length 115 [2018-10-24 18:53:35,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 18:53:35,722 INFO L481 AbstractCegarLoop]: Abstraction has 8390 states and 12580 transitions. [2018-10-24 18:53:35,722 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 18:53:35,723 INFO L276 IsEmpty]: Start isEmpty. Operand 8390 states and 12580 transitions. [2018-10-24 18:53:35,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2018-10-24 18:53:35,727 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 18:53:35,727 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-24 18:53:35,727 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 18:53:35,728 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:53:35,728 INFO L82 PathProgramCache]: Analyzing trace with hash 184143630, now seen corresponding path program 1 times [2018-10-24 18:53:35,728 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 18:53:35,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:35,729 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 18:53:35,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 18:53:35,729 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 18:53:35,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 18:53:36,066 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 18:53:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 57 proven. 5 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-10-24 18:53:36,206 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 18:53:36,206 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 18:53:36,207 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 190 with the following transitions: [2018-10-24 18:53:36,210 INFO L202 CegarAbsIntRunner]: [0], [1], [711], [718], [726], [734], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [890], [892], [895], [903], [911], [919], [927], [935], [943], [951], [959], [967], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1204], [1208], [1212], [1216], [1220], [1223], [1224], [1228], [1232], [1236], [1239], [2279], [2283], [2287], [2293], [2297], [2299], [2306], [2307], [2308], [2310], [2311] [2018-10-24 18:53:36,287 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 18:53:36,287 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 18:53:37,630 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 18:53:58,989 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 18:53:58,990 INFO L272 AbstractInterpreter]: Visited 87 different actions 573 times. Merged at 5 different actions 30 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-10-24 18:53:59,006 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 18:53:59,006 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 18:54:01,716 INFO L232 lantSequenceWeakener]: Weakened 14 states. On average, predicates are now at 77.08% of their original sizes. [2018-10-24 18:54:01,716 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 18:54:43,357 INFO L413 sIntCurrentIteration]: We have 188 unified AI predicates [2018-10-24 18:54:43,357 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 18:54:43,358 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 18:54:43,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-10-24 18:54:43,359 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 18:54:43,359 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-24 18:54:43,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-24 18:54:43,360 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2018-10-24 18:54:43,360 INFO L87 Difference]: Start difference. First operand 8390 states and 12580 transitions. Second operand 20 states. Received shutdown request... [2018-10-24 18:56:44,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-10-24 18:56:44,104 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 18:56:44,108 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 18:56:44,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 06:56:44 BoogieIcfgContainer [2018-10-24 18:56:44,109 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 18:56:44,110 INFO L168 Benchmark]: Toolchain (without parser) took 242238.68 ms. Allocated memory was 1.5 GB in the beginning and 4.3 GB in the end (delta: 2.7 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -650.8 MB). Peak memory consumption was 2.1 GB. Max. memory is 7.1 GB. [2018-10-24 18:56:44,111 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. [2018-10-24 18:56:44,112 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1843.10 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:44,113 INFO L168 Benchmark]: Boogie Procedure Inliner took 614.65 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 830.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -982.3 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:44,114 INFO L168 Benchmark]: Boogie Preprocessor took 356.26 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:44,115 INFO L168 Benchmark]: RCFGBuilder took 11331.70 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 453.2 MB). Peak memory consumption was 453.2 MB. Max. memory is 7.1 GB. [2018-10-24 18:56:44,115 INFO L168 Benchmark]: TraceAbstraction took 228087.59 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 2.1 GB in the end (delta: -287.9 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-24 18:56:44,120 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 1843.10 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: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 614.65 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 830.5 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -982.3 MB). Peak memory consumption was 56.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 356.26 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 28.8 MB). Peak memory consumption was 28.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11331.70 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 1.8 GB in the end (delta: 453.2 MB). Peak memory consumption was 453.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 228087.59 ms. Allocated memory was 2.4 GB in the beginning and 4.3 GB in the end (delta: 1.9 GB). Free memory was 1.8 GB in the beginning and 2.1 GB in the end (delta: -287.9 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 92]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 92). Cancelled while BasicCegarLoop was constructing difference of abstraction (8390states) and FLOYD_HOARE automaton (currently 22 states, 20 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 31 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 228.0s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 158.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 696 SDtfs, 6885 SDslu, 827 SDs, 0 SdLazy, 9727 SolverSat, 3184 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 73.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 224 GetRequests, 150 SyntacticMatches, 30 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 485 ImplicationChecksByTransitivity, 48.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8390occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 22.7s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9940098199672667 AbsIntWeakeningRatio, 0.14361702127659576 AbsIntAvgWeakeningVarsNumRemoved, 860.7553191489362 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 3 MinimizatonAttempts, 136 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 453 NumberOfCodeBlocks, 453 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 449 ConstructedInterpolants, 0 QuantifiedInterpolants, 227189 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 182/187 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown