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/Problem12_label51_false-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 00:08:46,605 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 00:08:46,608 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 00:08:46,620 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 00:08:46,620 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 00:08:46,621 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 00:08:46,622 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 00:08:46,624 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 00:08:46,626 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 00:08:46,626 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 00:08:46,627 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 00:08:46,628 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 00:08:46,629 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 00:08:46,630 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 00:08:46,631 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 00:08:46,631 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 00:08:46,632 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 00:08:46,634 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 00:08:46,636 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 00:08:46,638 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 00:08:46,639 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 00:08:46,640 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 00:08:46,642 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 00:08:46,643 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 00:08:46,643 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 00:08:46,644 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 00:08:46,645 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 00:08:46,645 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 00:08:46,646 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 00:08:46,647 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 00:08:46,648 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 00:08:46,648 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 00:08:46,649 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 00:08:46,649 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 00:08:46,650 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 00:08:46,651 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 00:08:46,651 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 00:08:46,666 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 00:08:46,666 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 00:08:46,667 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 00:08:46,667 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 00:08:46,668 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 00:08:46,668 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 00:08:46,668 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 00:08:46,668 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 00:08:46,668 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 00:08:46,668 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 00:08:46,669 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 00:08:46,669 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-07 00:08:46,670 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 00:08:46,670 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 00:08:46,670 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 00:08:46,670 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 00:08:46,670 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 00:08:46,671 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 00:08:46,671 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 00:08:46,671 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 00:08:46,671 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 00:08:46,671 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 00:08:46,672 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 00:08:46,672 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 00:08:46,672 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 00:08:46,672 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 00:08:46,672 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 00:08:46,673 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 00:08:46,673 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 00:08:46,673 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 00:08:46,673 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 00:08:46,673 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 00:08:46,674 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 00:08:46,674 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 00:08:46,725 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 00:08:46,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 00:08:46,747 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 00:08:46,748 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 00:08:46,749 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 00:08:46,750 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label51_false-unreach-call.c [2018-11-07 00:08:46,817 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/683ef85c8/364db11cd7f845ca929ab2fd0334b141/FLAG207fd49da [2018-11-07 00:08:47,528 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 00:08:47,529 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label51_false-unreach-call.c [2018-11-07 00:08:47,565 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/683ef85c8/364db11cd7f845ca929ab2fd0334b141/FLAG207fd49da [2018-11-07 00:08:47,587 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/683ef85c8/364db11cd7f845ca929ab2fd0334b141 [2018-11-07 00:08:47,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 00:08:47,602 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 00:08:47,603 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 00:08:47,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 00:08:47,611 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 00:08:47,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:08:47" (1/1) ... [2018-11-07 00:08:47,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a4c63d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:47, skipping insertion in model container [2018-11-07 00:08:47,617 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:08:47" (1/1) ... [2018-11-07 00:08:47,628 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 00:08:47,786 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 00:08:49,125 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:08:49,130 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 00:08:49,857 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 00:08:49,893 INFO L193 MainTranslator]: Completed translation [2018-11-07 00:08:49,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:49 WrapperNode [2018-11-07 00:08:49,894 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 00:08:49,895 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 00:08:49,895 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 00:08:49,897 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 00:08:49,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:49" (1/1) ... [2018-11-07 00:08:50,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:49" (1/1) ... [2018-11-07 00:08:50,237 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 00:08:50,237 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 00:08:50,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 00:08:50,238 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 00:08:50,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:49" (1/1) ... [2018-11-07 00:08:50,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:49" (1/1) ... [2018-11-07 00:08:50,280 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:49" (1/1) ... [2018-11-07 00:08:50,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:49" (1/1) ... [2018-11-07 00:08:50,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:49" (1/1) ... [2018-11-07 00:08:50,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:49" (1/1) ... [2018-11-07 00:08:50,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:49" (1/1) ... [2018-11-07 00:08:50,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 00:08:50,536 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 00:08:50,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 00:08:50,537 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 00:08:50,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:49" (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 00:08:50,611 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 00:08:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 00:08:50,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 00:08:50,612 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 00:08:50,612 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 00:08:50,613 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 00:08:50,613 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 00:08:50,613 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 00:08:50,614 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 00:08:50,614 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 00:08:50,615 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 00:08:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 00:08:50,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 00:08:50,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 00:08:50,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 00:08:59,537 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 00:08:59,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:08:59 BoogieIcfgContainer [2018-11-07 00:08:59,538 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 00:08:59,539 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 00:08:59,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 00:08:59,543 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 00:08:59,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:08:47" (1/3) ... [2018-11-07 00:08:59,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42aa3237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:08:59, skipping insertion in model container [2018-11-07 00:08:59,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:08:49" (2/3) ... [2018-11-07 00:08:59,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42aa3237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:08:59, skipping insertion in model container [2018-11-07 00:08:59,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:08:59" (3/3) ... [2018-11-07 00:08:59,547 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label51_false-unreach-call.c [2018-11-07 00:08:59,557 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 00:08:59,568 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 00:08:59,586 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 00:08:59,629 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 00:08:59,630 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 00:08:59,630 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 00:08:59,630 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 00:08:59,630 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 00:08:59,630 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 00:08:59,630 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 00:08:59,630 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 00:08:59,668 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-07 00:08:59,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-07 00:08:59,675 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:08:59,676 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:08:59,679 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:08:59,685 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:08:59,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1101804500, now seen corresponding path program 1 times [2018-11-07 00:08:59,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:08:59,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:08:59,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:08:59,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:08:59,746 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:08:59,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:09:00,120 WARN L179 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:09:00,223 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 00:09:00,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:09:00,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 00:09:00,228 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:09:00,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 00:09:00,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 00:09:00,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 00:09:00,288 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-07 00:09:07,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:09:07,812 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-07 00:09:07,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 00:09:07,814 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2018-11-07 00:09:07,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:09:07,854 INFO L225 Difference]: With dead ends: 2446 [2018-11-07 00:09:07,854 INFO L226 Difference]: Without dead ends: 1604 [2018-11-07 00:09:07,873 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 00:09:07,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-07 00:09:08,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-07 00:09:08,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-07 00:09:08,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 2909 transitions. [2018-11-07 00:09:08,087 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 2909 transitions. Word has length 18 [2018-11-07 00:09:08,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:09:08,088 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 2909 transitions. [2018-11-07 00:09:08,088 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 00:09:08,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 2909 transitions. [2018-11-07 00:09:08,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2018-11-07 00:09:08,095 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:09:08,095 INFO L375 BasicCegarLoop]: trace histogram [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 00:09:08,097 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:09:08,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:09:08,098 INFO L82 PathProgramCache]: Analyzing trace with hash -907006918, now seen corresponding path program 1 times [2018-11-07 00:09:08,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:09:08,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:08,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:09:08,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:08,100 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:09:08,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:09:08,516 WARN L179 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:09:08,740 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:09:08,740 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:09:08,740 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 00:09:08,741 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:09:08,743 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 00:09:08,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 00:09:08,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 00:09:08,744 INFO L87 Difference]: Start difference. First operand 1604 states and 2909 transitions. Second operand 5 states. [2018-11-07 00:09:19,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:09:19,985 INFO L93 Difference]: Finished difference Result 4818 states and 8826 transitions. [2018-11-07 00:09:19,986 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:09:19,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2018-11-07 00:09:19,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:09:20,011 INFO L225 Difference]: With dead ends: 4818 [2018-11-07 00:09:20,011 INFO L226 Difference]: Without dead ends: 3220 [2018-11-07 00:09:20,018 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:09:20,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2018-11-07 00:09:20,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3186. [2018-11-07 00:09:20,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3186 states. [2018-11-07 00:09:20,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3186 states to 3186 states and 5594 transitions. [2018-11-07 00:09:20,123 INFO L78 Accepts]: Start accepts. Automaton has 3186 states and 5594 transitions. Word has length 92 [2018-11-07 00:09:20,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:09:20,124 INFO L480 AbstractCegarLoop]: Abstraction has 3186 states and 5594 transitions. [2018-11-07 00:09:20,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 00:09:20,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3186 states and 5594 transitions. [2018-11-07 00:09:20,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2018-11-07 00:09:20,127 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:09:20,127 INFO L375 BasicCegarLoop]: trace histogram [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] [2018-11-07 00:09:20,127 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:09:20,128 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:09:20,128 INFO L82 PathProgramCache]: Analyzing trace with hash -1469630269, now seen corresponding path program 1 times [2018-11-07 00:09:20,128 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:09:20,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:20,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:09:20,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:20,129 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:09:20,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:09:20,303 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:09:20,304 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:09:20,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 00:09:20,304 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:09:20,305 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 00:09:20,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 00:09:20,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-07 00:09:20,305 INFO L87 Difference]: Start difference. First operand 3186 states and 5594 transitions. Second operand 5 states. [2018-11-07 00:09:31,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:09:31,559 INFO L93 Difference]: Finished difference Result 11100 states and 19721 transitions. [2018-11-07 00:09:31,561 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 00:09:31,561 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 97 [2018-11-07 00:09:31,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:09:31,619 INFO L225 Difference]: With dead ends: 11100 [2018-11-07 00:09:31,620 INFO L226 Difference]: Without dead ends: 7920 [2018-11-07 00:09:31,636 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:09:31,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7920 states. [2018-11-07 00:09:31,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7920 to 7891. [2018-11-07 00:09:31,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7891 states. [2018-11-07 00:09:31,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7891 states to 7891 states and 11676 transitions. [2018-11-07 00:09:31,859 INFO L78 Accepts]: Start accepts. Automaton has 7891 states and 11676 transitions. Word has length 97 [2018-11-07 00:09:31,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:09:31,860 INFO L480 AbstractCegarLoop]: Abstraction has 7891 states and 11676 transitions. [2018-11-07 00:09:31,860 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 00:09:31,860 INFO L276 IsEmpty]: Start isEmpty. Operand 7891 states and 11676 transitions. [2018-11-07 00:09:31,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2018-11-07 00:09:31,865 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:09:31,865 INFO L375 BasicCegarLoop]: trace histogram [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, 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 00:09:31,865 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:09:31,866 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:09:31,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1193444487, now seen corresponding path program 1 times [2018-11-07 00:09:31,866 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:09:31,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:31,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:09:31,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:31,867 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:09:31,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:09:32,061 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:09:32,062 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:09:32,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 00:09:32,062 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:09:32,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 00:09:32,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 00:09:32,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:09:32,063 INFO L87 Difference]: Start difference. First operand 7891 states and 11676 transitions. Second operand 6 states. [2018-11-07 00:09:39,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:09:39,725 INFO L93 Difference]: Finished difference Result 19169 states and 29015 transitions. [2018-11-07 00:09:39,728 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 00:09:39,728 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 143 [2018-11-07 00:09:39,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:09:39,793 INFO L225 Difference]: With dead ends: 19169 [2018-11-07 00:09:39,793 INFO L226 Difference]: Without dead ends: 11284 [2018-11-07 00:09:39,828 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 00:09:39,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11284 states. [2018-11-07 00:09:40,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11284 to 11206. [2018-11-07 00:09:40,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11206 states. [2018-11-07 00:09:40,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11206 states to 11206 states and 15763 transitions. [2018-11-07 00:09:40,317 INFO L78 Accepts]: Start accepts. Automaton has 11206 states and 15763 transitions. Word has length 143 [2018-11-07 00:09:40,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:09:40,318 INFO L480 AbstractCegarLoop]: Abstraction has 11206 states and 15763 transitions. [2018-11-07 00:09:40,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 00:09:40,318 INFO L276 IsEmpty]: Start isEmpty. Operand 11206 states and 15763 transitions. [2018-11-07 00:09:40,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-11-07 00:09:40,324 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:09:40,325 INFO L375 BasicCegarLoop]: trace histogram [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, 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 00:09:40,327 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:09:40,328 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:09:40,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1195363482, now seen corresponding path program 1 times [2018-11-07 00:09:40,328 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:09:40,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:40,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:09:40,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:40,330 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:09:40,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:09:40,769 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:09:40,770 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 00:09:40,770 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 00:09:40,770 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:09:40,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 00:09:40,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 00:09:40,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-07 00:09:40,774 INFO L87 Difference]: Start difference. First operand 11206 states and 15763 transitions. Second operand 5 states. [2018-11-07 00:09:48,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:09:48,351 INFO L93 Difference]: Finished difference Result 33957 states and 49141 transitions. [2018-11-07 00:09:48,351 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 00:09:48,351 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 172 [2018-11-07 00:09:48,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:09:48,459 INFO L225 Difference]: With dead ends: 33957 [2018-11-07 00:09:48,459 INFO L226 Difference]: Without dead ends: 22757 [2018-11-07 00:09:48,504 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 00:09:48,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22757 states. [2018-11-07 00:09:49,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22757 to 22593. [2018-11-07 00:09:49,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22593 states. [2018-11-07 00:09:49,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22593 states to 22593 states and 30219 transitions. [2018-11-07 00:09:49,320 INFO L78 Accepts]: Start accepts. Automaton has 22593 states and 30219 transitions. Word has length 172 [2018-11-07 00:09:49,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:09:49,321 INFO L480 AbstractCegarLoop]: Abstraction has 22593 states and 30219 transitions. [2018-11-07 00:09:49,321 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 00:09:49,321 INFO L276 IsEmpty]: Start isEmpty. Operand 22593 states and 30219 transitions. [2018-11-07 00:09:49,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2018-11-07 00:09:49,326 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:09:49,327 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 00:09:49,327 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:09:49,327 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:09:49,327 INFO L82 PathProgramCache]: Analyzing trace with hash -645247468, now seen corresponding path program 1 times [2018-11-07 00:09:49,327 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:09:49,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:49,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:09:49,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:09:49,328 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:09:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:09:49,637 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:09:50,052 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 22 proven. 82 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-07 00:09:50,052 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:09:50,053 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:09:50,054 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 209 with the following transitions: [2018-11-07 00:09:50,056 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1911], [1913], [1916], [1924], [1932], [1940], [1948], [1956], [1964], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2428], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2492], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 00:09:50,157 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:09:50,157 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:09:53,950 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 00:09:53,952 INFO L272 AbstractInterpreter]: Visited 108 different actions 108 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-11-07 00:09:53,963 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:09:53,963 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 00:09:56,394 INFO L227 lantSequenceWeakener]: Weakened 200 states. On average, predicates are now at 75.04% of their original sizes. [2018-11-07 00:09:56,394 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 00:09:57,033 INFO L415 sIntCurrentIteration]: We unified 207 AI predicates to 207 [2018-11-07 00:09:57,033 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 00:09:57,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 00:09:57,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2018-11-07 00:09:57,034 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 00:09:57,034 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-11-07 00:09:57,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-11-07 00:09:57,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-11-07 00:09:57,035 INFO L87 Difference]: Start difference. First operand 22593 states and 30219 transitions. Second operand 8 states. [2018-11-07 00:10:03,274 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 00:11:35,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 00:11:35,461 INFO L93 Difference]: Finished difference Result 45950 states and 61282 transitions. [2018-11-07 00:11:35,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-07 00:11:35,462 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 208 [2018-11-07 00:11:35,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 00:11:35,538 INFO L225 Difference]: With dead ends: 45950 [2018-11-07 00:11:35,538 INFO L226 Difference]: Without dead ends: 23363 [2018-11-07 00:11:35,583 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 209 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-11-07 00:11:35,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23363 states. [2018-11-07 00:11:36,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23363 to 23361. [2018-11-07 00:11:36,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23361 states. [2018-11-07 00:11:36,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23361 states to 23361 states and 30997 transitions. [2018-11-07 00:11:36,057 INFO L78 Accepts]: Start accepts. Automaton has 23361 states and 30997 transitions. Word has length 208 [2018-11-07 00:11:36,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 00:11:36,057 INFO L480 AbstractCegarLoop]: Abstraction has 23361 states and 30997 transitions. [2018-11-07 00:11:36,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-11-07 00:11:36,057 INFO L276 IsEmpty]: Start isEmpty. Operand 23361 states and 30997 transitions. [2018-11-07 00:11:36,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-11-07 00:11:36,064 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 00:11:36,065 INFO L375 BasicCegarLoop]: trace histogram [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, 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, 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 00:11:36,065 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 00:11:36,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 00:11:36,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1937456972, now seen corresponding path program 1 times [2018-11-07 00:11:36,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 00:11:36,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:11:36,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:11:36,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 00:11:36,067 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 00:11:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:11:36,417 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 00:11:36,824 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 16 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 00:11:36,824 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:11:36,825 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 00:11:36,825 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 269 with the following transitions: [2018-11-07 00:11:36,826 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1911], [1913], [1916], [1924], [1932], [1940], [1948], [1956], [1964], [1972], [1980], [1988], [1996], [2004], [2012], [2020], [2028], [2036], [2044], [2052], [2060], [2068], [2076], [2084], [2092], [2100], [2108], [2116], [2124], [2132], [2140], [2148], [2156], [2164], [2172], [2180], [2188], [2196], [2204], [2212], [2220], [2228], [2236], [2244], [2252], [2260], [2268], [2276], [2284], [2292], [2300], [2308], [2316], [2324], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2385], [2389], [2393], [2397], [2401], [2405], [2409], [2413], [2417], [2421], [2425], [2429], [2433], [2437], [2441], [2445], [2449], [2453], [2457], [2461], [2465], [2469], [2473], [2477], [2481], [2485], [2489], [2493], [2496], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2581], [2585], [2589], [2593], [2597], [2601], [2605], [2609], [2613], [2617], [2621], [2625], [2629], [2633], [2637], [2641], [2645], [2649], [2653], [2657], [2661], [2664], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 00:11:36,833 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-07 00:11:36,833 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 00:11:43,913 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 00:12:30,858 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-07 00:12:30,860 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-07 00:12:30,861 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-07 00:12:30,861 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 00:12:30,861 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:12:30,875 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 00:12:30,875 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-07 00:12:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 00:12:30,989 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-07 00:12:31,023 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-07 00:12:31,224 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-07 00:12:31,224 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 00:12:31,229 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 00:12:31,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:12:31 BoogieIcfgContainer [2018-11-07 00:12:31,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 00:12:31,231 INFO L168 Benchmark]: Toolchain (without parser) took 223629.52 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 3.6 GB in the end (delta: -2.2 GB). Peak memory consumption was 518.2 MB. Max. memory is 7.1 GB. [2018-11-07 00:12:31,232 INFO L168 Benchmark]: CDTParser took 0.53 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 00:12:31,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2291.20 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. [2018-11-07 00:12:31,234 INFO L168 Benchmark]: Boogie Procedure Inliner took 341.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 794.8 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. [2018-11-07 00:12:31,234 INFO L168 Benchmark]: Boogie Preprocessor took 298.54 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: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. [2018-11-07 00:12:31,235 INFO L168 Benchmark]: RCFGBuilder took 9001.69 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 157.8 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -149.4 MB). Peak memory consumption was 662.9 MB. Max. memory is 7.1 GB. [2018-11-07 00:12:31,236 INFO L168 Benchmark]: TraceAbstraction took 211690.96 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 2.4 GB in the beginning and 3.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 538.9 MB. Max. memory is 7.1 GB. [2018-11-07 00:12:31,245 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 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 2291.20 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 200.8 MB). Peak memory consumption was 200.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 341.85 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 794.8 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 298.54 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: 23.4 MB). Peak memory consumption was 23.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9001.69 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 157.8 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -149.4 MB). Peak memory consumption was 662.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211690.96 ms. Allocated memory was 2.5 GB in the beginning and 4.3 GB in the end (delta: 1.8 GB). Free memory was 2.4 GB in the beginning and 3.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 538.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 45). Cancelled while BasicCegarLoop was analyzing trace of length 269 with TraceHistMax 3,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 8 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 211.6s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 144.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1594 SDtfs, 14504 SDslu, 884 SDs, 0 SdLazy, 22708 SolverSat, 5446 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 102.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 247 GetRequests, 213 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23361occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 57.9s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9953177257525082 AbsIntWeakeningRatio, 0.13043478260869565 AbsIntAvgWeakeningVarsNumRemoved, 1039.038647342995 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 307 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 730 NumberOfCodeBlocks, 730 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 724 ConstructedInterpolants, 0 QuantifiedInterpolants, 416605 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 71/153 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown