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-INT-LIM.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem12_label31_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 20:20:23,534 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 20:20:23,536 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 20:20:23,548 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 20:20:23,548 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 20:20:23,550 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 20:20:23,551 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 20:20:23,553 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 20:20:23,554 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 20:20:23,555 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 20:20:23,556 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 20:20:23,556 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 20:20:23,557 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 20:20:23,558 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 20:20:23,559 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 20:20:23,560 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 20:20:23,564 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 20:20:23,567 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 20:20:23,569 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 20:20:23,571 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 20:20:23,572 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 20:20:23,573 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 20:20:23,575 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 20:20:23,576 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 20:20:23,576 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 20:20:23,577 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 20:20:23,578 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 20:20:23,578 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 20:20:23,579 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 20:20:23,580 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 20:20:23,580 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 20:20:23,581 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-07 20:20:23,581 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-07 20:20:23,581 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-07 20:20:23,582 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-07 20:20:23,583 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-07 20:20:23,583 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT-LIM.epf [2018-11-07 20:20:23,608 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 20:20:23,608 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 20:20:23,609 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 20:20:23,609 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 20:20:23,609 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 20:20:23,609 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 20:20:23,609 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-07 20:20:23,610 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 20:20:23,610 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 20:20:23,610 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 20:20:23,610 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 20:20:23,610 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 20:20:23,611 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 20:20:23,612 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 20:20:23,612 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 20:20:23,612 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 20:20:23,612 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 20:20:23,612 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 20:20:23,613 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 20:20:23,613 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 20:20:23,613 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 20:20:23,613 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 20:20:23,613 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 20:20:23,614 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 20:20:23,614 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 20:20:23,614 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 20:20:23,614 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 20:20:23,614 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 20:20:23,615 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 20:20:23,615 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 20:20:23,615 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 20:20:23,615 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 20:20:23,615 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 20:20:23,616 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 20:20:23,616 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 20:20:23,675 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 20:20:23,691 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 20:20:23,696 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 20:20:23,697 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 20:20:23,698 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 20:20:23,699 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem12_label31_true-unreach-call.c [2018-11-07 20:20:23,773 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1e7eb3b/1e83ccca777b44ae935014803f382f40/FLAGbee321fa8 [2018-11-07 20:20:24,561 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 20:20:24,562 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem12_label31_true-unreach-call.c [2018-11-07 20:20:24,600 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1e7eb3b/1e83ccca777b44ae935014803f382f40/FLAGbee321fa8 [2018-11-07 20:20:24,623 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ea1e7eb3b/1e83ccca777b44ae935014803f382f40 [2018-11-07 20:20:24,637 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 20:20:24,639 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 20:20:24,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 20:20:24,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 20:20:24,647 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 20:20:24,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:20:24" (1/1) ... [2018-11-07 20:20:24,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@89bea10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:24, skipping insertion in model container [2018-11-07 20:20:24,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:20:24" (1/1) ... [2018-11-07 20:20:24,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 20:20:24,843 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 20:20:26,133 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:20:26,137 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 20:20:26,742 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 20:20:26,776 INFO L193 MainTranslator]: Completed translation [2018-11-07 20:20:26,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:26 WrapperNode [2018-11-07 20:20:26,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 20:20:26,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 20:20:26,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 20:20:26,778 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 20:20:26,788 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:26" (1/1) ... [2018-11-07 20:20:27,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:26" (1/1) ... [2018-11-07 20:20:27,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 20:20:27,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 20:20:27,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 20:20:27,100 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 20:20:27,111 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:26" (1/1) ... [2018-11-07 20:20:27,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:26" (1/1) ... [2018-11-07 20:20:27,136 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:26" (1/1) ... [2018-11-07 20:20:27,136 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:26" (1/1) ... [2018-11-07 20:20:27,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:26" (1/1) ... [2018-11-07 20:20:27,286 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:26" (1/1) ... [2018-11-07 20:20:27,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:26" (1/1) ... [2018-11-07 20:20:27,360 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 20:20:27,361 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 20:20:27,361 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 20:20:27,361 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 20:20:27,362 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:26" (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 20:20:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 20:20:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 20:20:27,437 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 20:20:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-11-07 20:20:27,437 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-11-07 20:20:27,437 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-11-07 20:20:27,438 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-11-07 20:20:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 20:20:27,438 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 20:20:27,438 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 20:20:27,438 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 20:20:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 20:20:27,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 20:20:27,440 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 20:20:27,441 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 20:20:37,187 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 20:20:37,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:20:37 BoogieIcfgContainer [2018-11-07 20:20:37,188 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 20:20:37,189 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 20:20:37,189 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 20:20:37,192 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 20:20:37,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:20:24" (1/3) ... [2018-11-07 20:20:37,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d608ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:20:37, skipping insertion in model container [2018-11-07 20:20:37,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:20:26" (2/3) ... [2018-11-07 20:20:37,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d608ba8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:20:37, skipping insertion in model container [2018-11-07 20:20:37,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:20:37" (3/3) ... [2018-11-07 20:20:37,196 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label31_true-unreach-call.c [2018-11-07 20:20:37,206 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 20:20:37,216 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 20:20:37,234 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 20:20:37,282 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 20:20:37,282 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 20:20:37,282 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 20:20:37,283 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 20:20:37,283 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 20:20:37,283 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 20:20:37,283 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 20:20:37,283 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 20:20:37,326 INFO L276 IsEmpty]: Start isEmpty. Operand 840 states. [2018-11-07 20:20:37,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-11-07 20:20:37,337 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:20:37,338 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:20:37,341 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:20:37,347 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:20:37,347 INFO L82 PathProgramCache]: Analyzing trace with hash -621967516, now seen corresponding path program 1 times [2018-11-07 20:20:37,350 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:20:37,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:20:37,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:20:37,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:20:37,402 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:20:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:20:37,935 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 20:20:37,938 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:20:37,939 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-07 20:20:37,939 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:20:37,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-07 20:20:37,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-07 20:20:37,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-07 20:20:37,967 INFO L87 Difference]: Start difference. First operand 840 states. Second operand 3 states. [2018-11-07 20:20:45,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:20:45,845 INFO L93 Difference]: Finished difference Result 2446 states and 4700 transitions. [2018-11-07 20:20:45,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-07 20:20:45,846 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2018-11-07 20:20:45,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:20:45,882 INFO L225 Difference]: With dead ends: 2446 [2018-11-07 20:20:45,883 INFO L226 Difference]: Without dead ends: 1604 [2018-11-07 20:20:45,897 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 20:20:45,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2018-11-07 20:20:46,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1604. [2018-11-07 20:20:46,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1604 states. [2018-11-07 20:20:46,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1604 states to 1604 states and 3021 transitions. [2018-11-07 20:20:46,093 INFO L78 Accepts]: Start accepts. Automaton has 1604 states and 3021 transitions. Word has length 70 [2018-11-07 20:20:46,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:20:46,094 INFO L480 AbstractCegarLoop]: Abstraction has 1604 states and 3021 transitions. [2018-11-07 20:20:46,094 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-07 20:20:46,094 INFO L276 IsEmpty]: Start isEmpty. Operand 1604 states and 3021 transitions. [2018-11-07 20:20:46,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2018-11-07 20:20:46,108 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:20:46,108 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, 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] [2018-11-07 20:20:46,109 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:20:46,109 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:20:46,109 INFO L82 PathProgramCache]: Analyzing trace with hash -1190970174, now seen corresponding path program 1 times [2018-11-07 20:20:46,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:20:46,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:20:46,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:20:46,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:20:46,112 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:20:46,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:20:46,517 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:20:46,517 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:20:46,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:20:46,518 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:20:46,520 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:20:46,521 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:20:46,521 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:20:46,521 INFO L87 Difference]: Start difference. First operand 1604 states and 3021 transitions. Second operand 6 states. [2018-11-07 20:21:01,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:21:01,527 INFO L93 Difference]: Finished difference Result 6330 states and 12128 transitions. [2018-11-07 20:21:01,528 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:21:01,528 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 148 [2018-11-07 20:21:01,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:21:01,562 INFO L225 Difference]: With dead ends: 6330 [2018-11-07 20:21:01,563 INFO L226 Difference]: Without dead ends: 4732 [2018-11-07 20:21:01,573 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 20:21:01,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4732 states. [2018-11-07 20:21:01,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4732 to 4700. [2018-11-07 20:21:01,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4700 states. [2018-11-07 20:21:01,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4700 states to 4700 states and 7674 transitions. [2018-11-07 20:21:01,739 INFO L78 Accepts]: Start accepts. Automaton has 4700 states and 7674 transitions. Word has length 148 [2018-11-07 20:21:01,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:21:01,739 INFO L480 AbstractCegarLoop]: Abstraction has 4700 states and 7674 transitions. [2018-11-07 20:21:01,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:21:01,742 INFO L276 IsEmpty]: Start isEmpty. Operand 4700 states and 7674 transitions. [2018-11-07 20:21:01,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2018-11-07 20:21:01,756 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:21:01,756 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, 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 20:21:01,756 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:21:01,757 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:21:01,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1674946466, now seen corresponding path program 1 times [2018-11-07 20:21:01,757 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:21:01,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:21:01,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:21:01,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:21:01,760 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:21:01,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:21:01,971 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:21:01,972 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:21:01,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 20:21:01,973 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:21:01,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 20:21:01,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 20:21:01,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-07 20:21:01,975 INFO L87 Difference]: Start difference. First operand 4700 states and 7674 transitions. Second operand 5 states. [2018-11-07 20:21:10,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:21:10,469 INFO L93 Difference]: Finished difference Result 14303 states and 23676 transitions. [2018-11-07 20:21:10,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-07 20:21:10,469 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 150 [2018-11-07 20:21:10,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:21:10,527 INFO L225 Difference]: With dead ends: 14303 [2018-11-07 20:21:10,527 INFO L226 Difference]: Without dead ends: 9609 [2018-11-07 20:21:10,543 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 20:21:10,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9609 states. [2018-11-07 20:21:10,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9609 to 9527. [2018-11-07 20:21:10,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9527 states. [2018-11-07 20:21:10,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9527 states to 9527 states and 14359 transitions. [2018-11-07 20:21:10,832 INFO L78 Accepts]: Start accepts. Automaton has 9527 states and 14359 transitions. Word has length 150 [2018-11-07 20:21:10,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:21:10,832 INFO L480 AbstractCegarLoop]: Abstraction has 9527 states and 14359 transitions. [2018-11-07 20:21:10,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 20:21:10,833 INFO L276 IsEmpty]: Start isEmpty. Operand 9527 states and 14359 transitions. [2018-11-07 20:21:10,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-11-07 20:21:10,836 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:21:10,837 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, 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] [2018-11-07 20:21:10,837 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:21:10,837 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:21:10,837 INFO L82 PathProgramCache]: Analyzing trace with hash -170361029, now seen corresponding path program 1 times [2018-11-07 20:21:10,838 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:21:10,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:21:10,839 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:21:10,839 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:21:10,839 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:21:10,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:21:11,331 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:21:11,331 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:21:11,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:21:11,332 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:21:11,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:21:11,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:21:11,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:21:11,333 INFO L87 Difference]: Start difference. First operand 9527 states and 14359 transitions. Second operand 6 states. [2018-11-07 20:21:24,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:21:24,852 INFO L93 Difference]: Finished difference Result 38054 states and 60912 transitions. [2018-11-07 20:21:24,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:21:24,859 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 161 [2018-11-07 20:21:24,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:21:25,004 INFO L225 Difference]: With dead ends: 38054 [2018-11-07 20:21:25,005 INFO L226 Difference]: Without dead ends: 28533 [2018-11-07 20:21:25,080 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-11-07 20:21:25,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28533 states. [2018-11-07 20:21:25,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28533 to 28481. [2018-11-07 20:21:25,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28481 states. [2018-11-07 20:21:25,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28481 states to 28481 states and 41545 transitions. [2018-11-07 20:21:25,905 INFO L78 Accepts]: Start accepts. Automaton has 28481 states and 41545 transitions. Word has length 161 [2018-11-07 20:21:25,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:21:25,905 INFO L480 AbstractCegarLoop]: Abstraction has 28481 states and 41545 transitions. [2018-11-07 20:21:25,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:21:25,906 INFO L276 IsEmpty]: Start isEmpty. Operand 28481 states and 41545 transitions. [2018-11-07 20:21:25,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-11-07 20:21:25,911 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:21:25,913 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 20:21:25,913 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:21:25,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:21:25,914 INFO L82 PathProgramCache]: Analyzing trace with hash 1634908119, now seen corresponding path program 1 times [2018-11-07 20:21:25,914 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:21:25,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:21:25,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:21:25,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:21:25,915 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:21:25,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:21:26,206 WARN L179 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:21:26,614 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:21:26,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 20:21:26,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 20:21:26,615 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:21:26,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 20:21:26,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 20:21:26,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 20:21:26,616 INFO L87 Difference]: Start difference. First operand 28481 states and 41545 transitions. Second operand 6 states. [2018-11-07 20:21:36,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:21:36,697 INFO L93 Difference]: Finished difference Result 76101 states and 117823 transitions. [2018-11-07 20:21:36,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 20:21:36,697 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2018-11-07 20:21:36,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:21:36,880 INFO L225 Difference]: With dead ends: 76101 [2018-11-07 20:21:36,881 INFO L226 Difference]: Without dead ends: 47626 [2018-11-07 20:21:36,986 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 20:21:37,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47626 states. [2018-11-07 20:21:38,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47626 to 47439. [2018-11-07 20:21:38,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47439 states. [2018-11-07 20:21:38,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47439 states to 47439 states and 66611 transitions. [2018-11-07 20:21:38,488 INFO L78 Accepts]: Start accepts. Automaton has 47439 states and 66611 transitions. Word has length 195 [2018-11-07 20:21:38,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:21:38,488 INFO L480 AbstractCegarLoop]: Abstraction has 47439 states and 66611 transitions. [2018-11-07 20:21:38,489 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 20:21:38,489 INFO L276 IsEmpty]: Start isEmpty. Operand 47439 states and 66611 transitions. [2018-11-07 20:21:38,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2018-11-07 20:21:38,498 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:21:38,499 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:21:38,499 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:21:38,499 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:21:38,499 INFO L82 PathProgramCache]: Analyzing trace with hash -1213968518, now seen corresponding path program 1 times [2018-11-07 20:21:38,500 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:21:38,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:21:38,501 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:21:38,501 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:21:38,501 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:21:38,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:21:38,836 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 20:21:39,096 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-11-07 20:21:39,097 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:21:39,097 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:21:39,098 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 217 with the following transitions: [2018-11-07 20:21:39,107 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [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], [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 20:21:39,185 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:21:39,185 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:21:40,005 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-07 20:21:40,489 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:21:40,491 INFO L272 AbstractInterpreter]: Visited 153 different actions 300 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:21:40,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:21:40,537 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:21:41,400 INFO L227 lantSequenceWeakener]: Weakened 136 states. On average, predicates are now at 76.85% of their original sizes. [2018-11-07 20:21:41,400 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:21:42,355 INFO L415 sIntCurrentIteration]: We unified 215 AI predicates to 215 [2018-11-07 20:21:42,355 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:21:42,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:21:42,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [4] total 20 [2018-11-07 20:21:42,356 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:21:42,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-07 20:21:42,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-07 20:21:42,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2018-11-07 20:21:42,359 INFO L87 Difference]: Start difference. First operand 47439 states and 66611 transitions. Second operand 18 states. [2018-11-07 20:23:04,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 20:23:04,472 INFO L93 Difference]: Finished difference Result 96710 states and 135678 transitions. [2018-11-07 20:23:04,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2018-11-07 20:23:04,472 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 216 [2018-11-07 20:23:04,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 20:23:04,697 INFO L225 Difference]: With dead ends: 96710 [2018-11-07 20:23:04,697 INFO L226 Difference]: Without dead ends: 49277 [2018-11-07 20:23:04,814 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 236 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=285, Invalid=1197, Unknown=0, NotChecked=0, Total=1482 [2018-11-07 20:23:04,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49277 states. [2018-11-07 20:23:05,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49277 to 49272. [2018-11-07 20:23:05,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49272 states. [2018-11-07 20:23:05,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49272 states to 49272 states and 68498 transitions. [2018-11-07 20:23:05,788 INFO L78 Accepts]: Start accepts. Automaton has 49272 states and 68498 transitions. Word has length 216 [2018-11-07 20:23:05,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 20:23:05,790 INFO L480 AbstractCegarLoop]: Abstraction has 49272 states and 68498 transitions. [2018-11-07 20:23:05,790 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-07 20:23:05,790 INFO L276 IsEmpty]: Start isEmpty. Operand 49272 states and 68498 transitions. [2018-11-07 20:23:05,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2018-11-07 20:23:05,808 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 20:23:05,808 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-11-07 20:23:05,809 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 20:23:05,809 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:23:05,809 INFO L82 PathProgramCache]: Analyzing trace with hash -819233451, now seen corresponding path program 1 times [2018-11-07 20:23:05,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 20:23:05,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:23:05,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 20:23:05,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 20:23:05,811 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 20:23:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 20:23:06,152 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 200 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 20:23:06,153 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 20:23:06,153 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 20:23:06,153 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 272 with the following transitions: [2018-11-07 20:23:06,154 INFO L202 CegarAbsIntRunner]: [0], [1], [1868], [1875], [1883], [1891], [1899], [1907], [1915], [1923], [1931], [1939], [1947], [1955], [1963], [1971], [1979], [1987], [1995], [2003], [2011], [2019], [2027], [2035], [2043], [2051], [2059], [2067], [2075], [2083], [2091], [2099], [2107], [2115], [2123], [2131], [2139], [2147], [2155], [2163], [2171], [2179], [2187], [2195], [2203], [2211], [2219], [2227], [2235], [2243], [2251], [2259], [2267], [2275], [2283], [2291], [2299], [2307], [2315], [2323], [2327], [2329], [2332], [2340], [2348], [2356], [2361], [2365], [2369], [2373], [2377], [2381], [2384], [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], [2497], [2501], [2505], [2509], [2513], [2517], [2521], [2525], [2529], [2533], [2537], [2541], [2545], [2549], [2553], [2557], [2561], [2565], [2569], [2573], [2577], [2580], [3240], [3244], [3248], [3254], [3258], [3260], [3271], [3272], [3273], [3275], [3276] [2018-11-07 20:23:06,161 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 20:23:06,161 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 20:23:06,506 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 20:23:06,506 INFO L272 AbstractInterpreter]: Visited 133 different actions 259 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-11-07 20:23:06,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 20:23:06,549 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 20:23:07,341 INFO L227 lantSequenceWeakener]: Weakened 268 states. On average, predicates are now at 75.78% of their original sizes. [2018-11-07 20:23:07,342 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 20:23:07,742 INFO L415 sIntCurrentIteration]: We unified 270 AI predicates to 270 [2018-11-07 20:23:07,742 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 20:23:07,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 20:23:07,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-11-07 20:23:07,743 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 20:23:07,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-11-07 20:23:07,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-11-07 20:23:07,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-11-07 20:23:07,744 INFO L87 Difference]: Start difference. First operand 49272 states and 68498 transitions. Second operand 11 states. [2018-11-07 20:23:10,065 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 20:23:48,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-11-07 20:23:48,787 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 20:23:48,792 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 20:23:48,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:23:48 BoogieIcfgContainer [2018-11-07 20:23:48,793 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 20:23:48,793 INFO L168 Benchmark]: Toolchain (without parser) took 204155.64 ms. Allocated memory was 1.5 GB in the beginning and 5.9 GB in the end (delta: 4.4 GB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -505.8 MB). Peak memory consumption was 3.9 GB. Max. memory is 7.1 GB. [2018-11-07 20:23:48,795 INFO L168 Benchmark]: CDTParser took 0.24 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 20:23:48,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2136.20 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 20:23:48,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 321.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 784.3 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. [2018-11-07 20:23:48,797 INFO L168 Benchmark]: Boogie Preprocessor took 261.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2018-11-07 20:23:48,798 INFO L168 Benchmark]: RCFGBuilder took 9826.89 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 161.0 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -167.8 MB). Peak memory consumption was 669.6 MB. Max. memory is 7.1 GB. [2018-11-07 20:23:48,799 INFO L168 Benchmark]: TraceAbstraction took 191603.99 ms. Allocated memory was 2.5 GB in the beginning and 5.9 GB in the end (delta: 3.4 GB). Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 477.7 MB). Peak memory consumption was 3.9 GB. Max. memory is 7.1 GB. [2018-11-07 20:23:48,805 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 2136.20 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 321.01 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 784.3 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 54.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 261.48 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 9826.89 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 161.0 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -167.8 MB). Peak memory consumption was 669.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 191603.99 ms. Allocated memory was 2.5 GB in the beginning and 5.9 GB in the end (delta: 3.4 GB). Free memory was 2.4 GB in the beginning and 1.9 GB in the end (delta: 477.7 MB). Peak memory consumption was 3.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 201]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 201). Cancelled while BasicCegarLoop was constructing difference of abstraction (49272states) and FLOYD_HOARE automaton (currently 14 states, 11 states before enhancement),while ReachableStatesComputation was computing reachable states (52214 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 840 locations, 1 error locations. TIMEOUT Result, 191.5s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 179.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2132 SDtfs, 24501 SDslu, 1773 SDs, 0 SdLazy, 44798 SolverSat, 6339 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 95.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 556 GetRequests, 473 SyntacticMatches, 4 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49272occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.8s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9977526452331468 AbsIntWeakeningRatio, 0.09896907216494845 AbsIntAvgWeakeningVarsNumRemoved, 22.729896907216496 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 3.9s AutomataMinimizationTime, 6 MinimizatonAttempts, 358 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 1211 NumberOfCodeBlocks, 1211 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1204 ConstructedInterpolants, 0 QuantifiedInterpolants, 868218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 456/517 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown