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/Problem16_label55_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-63daa26 [2018-11-12 19:25:39,801 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-12 19:25:39,803 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-12 19:25:39,816 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-12 19:25:39,817 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-12 19:25:39,818 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-12 19:25:39,819 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-12 19:25:39,821 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-12 19:25:39,823 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-12 19:25:39,824 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-12 19:25:39,825 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-12 19:25:39,825 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-12 19:25:39,826 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-12 19:25:39,827 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-12 19:25:39,828 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-12 19:25:39,829 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-12 19:25:39,830 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-12 19:25:39,832 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-12 19:25:39,834 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-12 19:25:39,836 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-12 19:25:39,837 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-12 19:25:39,838 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-12 19:25:39,841 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-12 19:25:39,841 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-12 19:25:39,842 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-12 19:25:39,843 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-12 19:25:39,844 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-12 19:25:39,845 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-12 19:25:39,845 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-12 19:25:39,847 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-12 19:25:39,847 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-12 19:25:39,848 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-12 19:25:39,848 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-12 19:25:39,848 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-12 19:25:39,849 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-12 19:25:39,850 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-12 19:25:39,850 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 [2018-11-12 19:25:39,870 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-12 19:25:39,870 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-12 19:25:39,871 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-12 19:25:39,871 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-12 19:25:39,871 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-12 19:25:39,872 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-12 19:25:39,872 INFO L133 SettingsManager]: * Maximum recursion depth of evaluation operations=6 [2018-11-12 19:25:39,872 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-12 19:25:39,872 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-12 19:25:39,873 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-12 19:25:39,873 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-12 19:25:39,873 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-12 19:25:39,873 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-12 19:25:39,877 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-12 19:25:39,878 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-12 19:25:39,878 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-12 19:25:39,878 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-12 19:25:39,878 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-12 19:25:39,878 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-12 19:25:39,879 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-12 19:25:39,879 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-12 19:25:39,879 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-12 19:25:39,879 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-12 19:25:39,879 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-12 19:25:39,879 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-12 19:25:39,880 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-12 19:25:39,880 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-12 19:25:39,880 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-12 19:25:39,880 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-12 19:25:39,880 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-12 19:25:39,882 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-12 19:25:39,882 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-12 19:25:39,883 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-12 19:25:39,883 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-12 19:25:39,883 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-12 19:25:39,935 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-12 19:25:39,952 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-12 19:25:39,956 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-12 19:25:39,958 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-12 19:25:39,958 INFO L276 PluginConnector]: CDTParser initialized [2018-11-12 19:25:39,959 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label55_true-unreach-call.c [2018-11-12 19:25:40,031 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79c1d7726/fcdf4cdc6f70476caac893af8a731a3a/FLAG06c00114a [2018-11-12 19:25:40,717 INFO L298 CDTParser]: Found 1 translation units. [2018-11-12 19:25:40,718 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label55_true-unreach-call.c [2018-11-12 19:25:40,742 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79c1d7726/fcdf4cdc6f70476caac893af8a731a3a/FLAG06c00114a [2018-11-12 19:25:40,762 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79c1d7726/fcdf4cdc6f70476caac893af8a731a3a [2018-11-12 19:25:40,774 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-12 19:25:40,776 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-12 19:25:40,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-12 19:25:40,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-12 19:25:40,783 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-12 19:25:40,784 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:25:40" (1/1) ... [2018-11-12 19:25:40,787 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5742dfac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:25:40, skipping insertion in model container [2018-11-12 19:25:40,787 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 07:25:40" (1/1) ... [2018-11-12 19:25:40,798 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-12 19:25:40,896 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-12 19:25:41,617 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:25:41,621 INFO L189 MainTranslator]: Completed pre-run [2018-11-12 19:25:41,889 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-12 19:25:41,910 INFO L193 MainTranslator]: Completed translation [2018-11-12 19:25:41,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:25:41 WrapperNode [2018-11-12 19:25:41,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-12 19:25:41,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-12 19:25:41,912 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-12 19:25:41,912 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-12 19:25:42,048 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:25:41" (1/1) ... [2018-11-12 19:25:42,095 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:25:41" (1/1) ... [2018-11-12 19:25:42,105 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-12 19:25:42,106 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-12 19:25:42,106 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-12 19:25:42,106 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-12 19:25:42,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:25:41" (1/1) ... [2018-11-12 19:25:42,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:25:41" (1/1) ... [2018-11-12 19:25:42,124 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:25:41" (1/1) ... [2018-11-12 19:25:42,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:25:41" (1/1) ... [2018-11-12 19:25:42,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:25:41" (1/1) ... [2018-11-12 19:25:42,203 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:25:41" (1/1) ... [2018-11-12 19:25:42,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:25:41" (1/1) ... [2018-11-12 19:25:42,247 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-12 19:25:42,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-12 19:25:42,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-12 19:25:42,248 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-12 19:25:42,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:25:41" (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 [2018-11-12 19:25:42,320 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-12 19:25:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-12 19:25:42,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-12 19:25:42,321 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-12 19:25:42,322 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-12 19:25:42,322 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-12 19:25:42,322 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-12 19:25:42,322 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-12 19:25:42,323 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-12 19:25:42,324 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-12 19:25:42,324 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-12 19:25:48,428 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-12 19:25:48,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:25:48 BoogieIcfgContainer [2018-11-12 19:25:48,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-12 19:25:48,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-12 19:25:48,431 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-12 19:25:48,434 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-12 19:25:48,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 07:25:40" (1/3) ... [2018-11-12 19:25:48,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fea4b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:25:48, skipping insertion in model container [2018-11-12 19:25:48,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 07:25:41" (2/3) ... [2018-11-12 19:25:48,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27fea4b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 07:25:48, skipping insertion in model container [2018-11-12 19:25:48,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 07:25:48" (3/3) ... [2018-11-12 19:25:48,438 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label55_true-unreach-call.c [2018-11-12 19:25:48,447 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-12 19:25:48,455 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-12 19:25:48,471 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-12 19:25:48,526 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-12 19:25:48,526 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-12 19:25:48,526 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-12 19:25:48,526 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-12 19:25:48,526 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-12 19:25:48,527 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-12 19:25:48,527 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-12 19:25:48,527 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-12 19:25:48,566 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-12 19:25:48,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-11-12 19:25:48,576 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:25:48,579 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] [2018-11-12 19:25:48,583 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:25:48,588 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:25:48,588 INFO L82 PathProgramCache]: Analyzing trace with hash 886904748, now seen corresponding path program 1 times [2018-11-12 19:25:48,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:25:48,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:25:48,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:25:48,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:25:48,637 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:25:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:25:49,126 WARN L179 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:25:49,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:25:49,253 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:25:49,253 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-12 19:25:49,253 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:25:49,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-12 19:25:49,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-12 19:25:49,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:25:49,280 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-11-12 19:25:52,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:25:52,839 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-11-12 19:25:52,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-12 19:25:52,841 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2018-11-12 19:25:52,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:25:52,868 INFO L225 Difference]: With dead ends: 1156 [2018-11-12 19:25:52,868 INFO L226 Difference]: Without dead ends: 744 [2018-11-12 19:25:52,879 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-12 19:25:52,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-11-12 19:25:52,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-11-12 19:25:52,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-12 19:25:52,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1353 transitions. [2018-11-12 19:25:52,998 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1353 transitions. Word has length 64 [2018-11-12 19:25:52,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:25:52,999 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1353 transitions. [2018-11-12 19:25:52,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-12 19:25:53,000 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1353 transitions. [2018-11-12 19:25:53,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2018-11-12 19:25:53,009 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:25:53,010 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:25:53,010 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:25:53,011 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:25:53,011 INFO L82 PathProgramCache]: Analyzing trace with hash -350572761, now seen corresponding path program 1 times [2018-11-12 19:25:53,011 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:25:53,012 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:25:53,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:25:53,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:25:53,013 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:25:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:25:53,420 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-12 19:25:53,420 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-12 19:25:53,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-12 19:25:53,420 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:25:53,423 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-12 19:25:53,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-12 19:25:53,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-12 19:25:53,423 INFO L87 Difference]: Start difference. First operand 744 states and 1353 transitions. Second operand 6 states. [2018-11-12 19:25:59,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:25:59,976 INFO L93 Difference]: Finished difference Result 2184 states and 3997 transitions. [2018-11-12 19:25:59,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-12 19:25:59,981 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2018-11-12 19:25:59,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:25:59,995 INFO L225 Difference]: With dead ends: 2184 [2018-11-12 19:25:59,995 INFO L226 Difference]: Without dead ends: 1446 [2018-11-12 19:26:00,001 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-12 19:26:00,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2018-11-12 19:26:00,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1425. [2018-11-12 19:26:00,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1425 states. [2018-11-12 19:26:00,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 2267 transitions. [2018-11-12 19:26:00,085 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 2267 transitions. Word has length 157 [2018-11-12 19:26:00,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:26:00,086 INFO L480 AbstractCegarLoop]: Abstraction has 1425 states and 2267 transitions. [2018-11-12 19:26:00,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-12 19:26:00,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 2267 transitions. [2018-11-12 19:26:00,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2018-11-12 19:26:00,098 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:26:00,098 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-11-12 19:26:00,098 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:26:00,099 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:26:00,099 INFO L82 PathProgramCache]: Analyzing trace with hash -10136240, now seen corresponding path program 1 times [2018-11-12 19:26:00,099 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:26:00,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:26:00,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:26:00,101 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:26:00,101 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:26:00,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:26:00,542 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 114 proven. 88 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-12 19:26:00,543 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:26:00,543 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:26:00,544 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 269 with the following transitions: [2018-11-12 19:26:00,546 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:26:00,594 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:26:00,595 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:26:01,394 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:26:01,396 INFO L272 AbstractInterpreter]: Visited 116 different actions 116 times. Never merged. Never widened. Performed 1922 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1922 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Never found a fixpoint. Largest state had 24 variables. [2018-11-12 19:26:01,452 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:26:01,452 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:26:02,604 INFO L227 lantSequenceWeakener]: Weakened 246 states. On average, predicates are now at 78.22% of their original sizes. [2018-11-12 19:26:02,605 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:26:03,781 INFO L415 sIntCurrentIteration]: We unified 267 AI predicates to 267 [2018-11-12 19:26:03,781 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:26:03,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:26:03,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2018-11-12 19:26:03,783 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:26:03,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-12 19:26:03,784 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-12 19:26:03,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2018-11-12 19:26:03,784 INFO L87 Difference]: Start difference. First operand 1425 states and 2267 transitions. Second operand 10 states. [2018-11-12 19:26:08,573 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:26:35,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:26:35,415 INFO L93 Difference]: Finished difference Result 3187 states and 5096 transitions. [2018-11-12 19:26:35,415 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-12 19:26:35,415 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 268 [2018-11-12 19:26:35,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:26:35,428 INFO L225 Difference]: With dead ends: 3187 [2018-11-12 19:26:35,428 INFO L226 Difference]: Without dead ends: 1768 [2018-11-12 19:26:35,434 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 271 GetRequests, 239 SyntacticMatches, 20 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2018-11-12 19:26:35,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1768 states. [2018-11-12 19:26:35,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1768 to 1763. [2018-11-12 19:26:35,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1763 states. [2018-11-12 19:26:35,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1763 states to 1763 states and 2612 transitions. [2018-11-12 19:26:35,491 INFO L78 Accepts]: Start accepts. Automaton has 1763 states and 2612 transitions. Word has length 268 [2018-11-12 19:26:35,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:26:35,491 INFO L480 AbstractCegarLoop]: Abstraction has 1763 states and 2612 transitions. [2018-11-12 19:26:35,492 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-12 19:26:35,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1763 states and 2612 transitions. [2018-11-12 19:26:35,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-11-12 19:26:35,501 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:26:35,501 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:26:35,502 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:26:35,502 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:26:35,502 INFO L82 PathProgramCache]: Analyzing trace with hash 448622162, now seen corresponding path program 1 times [2018-11-12 19:26:35,502 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:26:35,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:26:35,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:26:35,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:26:35,504 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:26:35,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:26:35,934 WARN L179 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:26:36,520 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 177 proven. 197 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 19:26:36,520 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:26:36,521 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:26:36,521 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 361 with the following transitions: [2018-11-12 19:26:36,521 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:26:36,527 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:26:36,527 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:26:36,638 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:26:37,762 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:26:37,762 INFO L272 AbstractInterpreter]: Visited 120 different actions 347 times. Merged at 5 different actions 9 times. Never widened. Performed 5797 root evaluator evaluations with a maximum evaluation depth of 6. Performed 5797 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:26:37,799 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:26:37,800 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:26:38,649 INFO L227 lantSequenceWeakener]: Weakened 93 states. On average, predicates are now at 77.91% of their original sizes. [2018-11-12 19:26:38,649 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:26:40,382 INFO L415 sIntCurrentIteration]: We unified 359 AI predicates to 359 [2018-11-12 19:26:40,382 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:26:40,383 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:26:40,383 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-11-12 19:26:40,384 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:26:40,385 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-11-12 19:26:40,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-11-12 19:26:40,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=201, Unknown=0, NotChecked=0, Total=272 [2018-11-12 19:26:40,386 INFO L87 Difference]: Start difference. First operand 1763 states and 2612 transitions. Second operand 17 states. [2018-11-12 19:27:09,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:27:09,209 INFO L93 Difference]: Finished difference Result 4624 states and 7092 transitions. [2018-11-12 19:27:09,210 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-11-12 19:27:09,210 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 360 [2018-11-12 19:27:09,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:27:09,226 INFO L225 Difference]: With dead ends: 4624 [2018-11-12 19:27:09,226 INFO L226 Difference]: Without dead ends: 3205 [2018-11-12 19:27:09,232 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 365 GetRequests, 321 SyntacticMatches, 23 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=125, Invalid=381, Unknown=0, NotChecked=0, Total=506 [2018-11-12 19:27:09,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3205 states. [2018-11-12 19:27:09,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3205 to 2732. [2018-11-12 19:27:09,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2732 states. [2018-11-12 19:27:09,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2732 states to 2732 states and 3622 transitions. [2018-11-12 19:27:09,302 INFO L78 Accepts]: Start accepts. Automaton has 2732 states and 3622 transitions. Word has length 360 [2018-11-12 19:27:09,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:27:09,303 INFO L480 AbstractCegarLoop]: Abstraction has 2732 states and 3622 transitions. [2018-11-12 19:27:09,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-11-12 19:27:09,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2732 states and 3622 transitions. [2018-11-12 19:27:09,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 397 [2018-11-12 19:27:09,313 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:27:09,314 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-12 19:27:09,314 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:27:09,314 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:27:09,315 INFO L82 PathProgramCache]: Analyzing trace with hash -813557942, now seen corresponding path program 1 times [2018-11-12 19:27:09,315 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:27:09,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:27:09,316 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:27:09,316 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:27:09,316 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:27:09,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:27:09,680 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:27:10,232 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 177 proven. 217 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 19:27:10,233 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:27:10,233 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:27:10,233 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 397 with the following transitions: [2018-11-12 19:27:10,234 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [904], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:27:10,240 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:27:10,241 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:27:10,435 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:27:10,843 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:27:10,843 INFO L272 AbstractInterpreter]: Visited 137 different actions 398 times. Merged at 5 different actions 9 times. Never widened. Performed 7063 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7063 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:27:10,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:27:10,881 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:27:11,615 INFO L227 lantSequenceWeakener]: Weakened 116 states. On average, predicates are now at 78.68% of their original sizes. [2018-11-12 19:27:11,615 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:27:12,126 INFO L415 sIntCurrentIteration]: We unified 395 AI predicates to 395 [2018-11-12 19:27:12,126 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:27:12,127 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:27:12,127 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-11-12 19:27:12,127 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:27:12,128 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-11-12 19:27:12,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-11-12 19:27:12,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2018-11-12 19:27:12,128 INFO L87 Difference]: Start difference. First operand 2732 states and 3622 transitions. Second operand 20 states. [2018-11-12 19:28:08,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:28:08,173 INFO L93 Difference]: Finished difference Result 5923 states and 8455 transitions. [2018-11-12 19:28:08,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-11-12 19:28:08,174 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 396 [2018-11-12 19:28:08,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:28:08,191 INFO L225 Difference]: With dead ends: 5923 [2018-11-12 19:28:08,191 INFO L226 Difference]: Without dead ends: 3825 [2018-11-12 19:28:08,198 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 408 GetRequests, 377 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=271, Invalid=785, Unknown=0, NotChecked=0, Total=1056 [2018-11-12 19:28:08,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2018-11-12 19:28:08,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 3365. [2018-11-12 19:28:08,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3365 states. [2018-11-12 19:28:08,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3365 states to 3365 states and 4282 transitions. [2018-11-12 19:28:08,284 INFO L78 Accepts]: Start accepts. Automaton has 3365 states and 4282 transitions. Word has length 396 [2018-11-12 19:28:08,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:28:08,285 INFO L480 AbstractCegarLoop]: Abstraction has 3365 states and 4282 transitions. [2018-11-12 19:28:08,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-11-12 19:28:08,285 INFO L276 IsEmpty]: Start isEmpty. Operand 3365 states and 4282 transitions. [2018-11-12 19:28:08,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2018-11-12 19:28:08,301 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:28:08,302 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-12 19:28:08,302 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:28:08,302 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:28:08,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1265958550, now seen corresponding path program 1 times [2018-11-12 19:28:08,303 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:28:08,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:28:08,304 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:28:08,304 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:28:08,304 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:28:08,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:28:08,701 WARN L179 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:28:08,876 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 177 proven. 217 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 19:28:08,876 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:28:08,876 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:28:08,876 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 509 with the following transitions: [2018-11-12 19:28:08,877 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:28:08,884 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:28:08,885 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:28:09,473 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:28:09,473 INFO L272 AbstractInterpreter]: Visited 249 different actions 494 times. Merged at 5 different actions 7 times. Never widened. Performed 7397 root evaluator evaluations with a maximum evaluation depth of 6. Performed 7397 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:28:09,500 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:28:09,501 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:28:10,576 INFO L227 lantSequenceWeakener]: Weakened 278 states. On average, predicates are now at 78.24% of their original sizes. [2018-11-12 19:28:10,576 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:28:12,708 INFO L415 sIntCurrentIteration]: We unified 507 AI predicates to 507 [2018-11-12 19:28:12,709 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:28:12,709 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:28:12,710 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-11-12 19:28:12,710 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:28:12,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-12 19:28:12,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-12 19:28:12,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2018-11-12 19:28:12,711 INFO L87 Difference]: Start difference. First operand 3365 states and 4282 transitions. Second operand 18 states. [2018-11-12 19:28:14,790 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:28:45,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:28:45,115 INFO L93 Difference]: Finished difference Result 6106 states and 8327 transitions. [2018-11-12 19:28:45,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-11-12 19:28:45,116 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 508 [2018-11-12 19:28:45,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:28:45,133 INFO L225 Difference]: With dead ends: 6106 [2018-11-12 19:28:45,133 INFO L226 Difference]: Without dead ends: 4001 [2018-11-12 19:28:45,140 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 523 GetRequests, 399 SyntacticMatches, 92 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 766 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2018-11-12 19:28:45,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4001 states. [2018-11-12 19:28:45,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4001 to 3996. [2018-11-12 19:28:45,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3996 states. [2018-11-12 19:28:45,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3996 states to 3996 states and 4947 transitions. [2018-11-12 19:28:45,239 INFO L78 Accepts]: Start accepts. Automaton has 3996 states and 4947 transitions. Word has length 508 [2018-11-12 19:28:45,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:28:45,240 INFO L480 AbstractCegarLoop]: Abstraction has 3996 states and 4947 transitions. [2018-11-12 19:28:45,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-12 19:28:45,241 INFO L276 IsEmpty]: Start isEmpty. Operand 3996 states and 4947 transitions. [2018-11-12 19:28:45,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2018-11-12 19:28:45,251 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:28:45,252 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-11-12 19:28:45,252 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:28:45,252 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:28:45,253 INFO L82 PathProgramCache]: Analyzing trace with hash 36782042, now seen corresponding path program 1 times [2018-11-12 19:28:45,253 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:28:45,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:28:45,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:28:45,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:28:45,254 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:28:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:28:45,726 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-12 19:28:45,939 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 177 proven. 217 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-11-12 19:28:45,940 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:28:45,940 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:28:45,940 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 517 with the following transitions: [2018-11-12 19:28:45,940 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1384], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:28:45,945 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:28:45,946 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:28:48,956 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-12 19:28:48,957 INFO L272 AbstractInterpreter]: Visited 257 different actions 2265 times. Merged at 5 different actions 40 times. Widened at 1 different actions 4 times. Performed 38663 root evaluator evaluations with a maximum evaluation depth of 6. Performed 38663 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-11-12 19:28:48,964 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:28:48,964 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-12 19:28:49,567 INFO L227 lantSequenceWeakener]: Weakened 163 states. On average, predicates are now at 78.84% of their original sizes. [2018-11-12 19:28:49,567 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-12 19:28:49,943 INFO L415 sIntCurrentIteration]: We unified 515 AI predicates to 515 [2018-11-12 19:28:49,943 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-12 19:28:49,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-12 19:28:49,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2018-11-12 19:28:49,944 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-12 19:28:49,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-11-12 19:28:49,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-11-12 19:28:49,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=388, Unknown=0, NotChecked=0, Total=506 [2018-11-12 19:28:49,945 INFO L87 Difference]: Start difference. First operand 3996 states and 4947 transitions. Second operand 23 states. [2018-11-12 19:28:52,446 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-11-12 19:29:14,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-12 19:29:14,890 INFO L93 Difference]: Finished difference Result 6742 states and 9003 transitions. [2018-11-12 19:29:14,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-11-12 19:29:14,890 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 516 [2018-11-12 19:29:14,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-12 19:29:14,908 INFO L225 Difference]: With dead ends: 6742 [2018-11-12 19:29:14,908 INFO L226 Difference]: Without dead ends: 4637 [2018-11-12 19:29:14,915 INFO L604 BasicCegarLoop]: 2 DeclaredPredicates, 528 GetRequests, 494 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=259, Invalid=1001, Unknown=0, NotChecked=0, Total=1260 [2018-11-12 19:29:14,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4637 states. [2018-11-12 19:29:15,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4637 to 4629. [2018-11-12 19:29:15,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4629 states. [2018-11-12 19:29:15,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4629 states to 4629 states and 5618 transitions. [2018-11-12 19:29:15,015 INFO L78 Accepts]: Start accepts. Automaton has 4629 states and 5618 transitions. Word has length 516 [2018-11-12 19:29:15,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-12 19:29:15,016 INFO L480 AbstractCegarLoop]: Abstraction has 4629 states and 5618 transitions. [2018-11-12 19:29:15,016 INFO L481 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-11-12 19:29:15,016 INFO L276 IsEmpty]: Start isEmpty. Operand 4629 states and 5618 transitions. [2018-11-12 19:29:15,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 601 [2018-11-12 19:29:15,029 INFO L367 BasicCegarLoop]: Found error trace [2018-11-12 19:29:15,029 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-12 19:29:15,029 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-12 19:29:15,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-12 19:29:15,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1069212052, now seen corresponding path program 1 times [2018-11-12 19:29:15,030 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-12 19:29:15,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:29:15,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:29:15,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-12 19:29:15,031 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-12 19:29:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:29:15,384 WARN L179 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-11-12 19:29:15,749 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2018-11-12 19:29:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 328 proven. 200 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-11-12 19:29:16,675 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:29:16,675 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-12 19:29:16,675 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 601 with the following transitions: [2018-11-12 19:29:16,676 INFO L202 CegarAbsIntRunner]: [0], [1], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [591], [593], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [760], [761], [764], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [836], [837], [841], [845], [849], [853], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-11-12 19:29:16,680 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-12 19:29:16,680 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-12 19:29:16,733 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-12 19:29:17,730 WARN L572 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-11-12 19:29:17,731 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-11-12 19:29:17,732 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-12 19:29:17,732 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-12 19:29:17,732 INFO L192 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 [2018-11-12 19:29:17,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-12 19:29:17,743 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-12 19:29:17,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-12 19:29:17,933 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-12 19:29:18,022 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-11-12 19:29:18,223 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-12 19:29:18,224 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-12 19:29:18,229 WARN L205 ceAbstractionStarter]: Timeout [2018-11-12 19:29:18,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 07:29:18 BoogieIcfgContainer [2018-11-12 19:29:18,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-12 19:29:18,231 INFO L168 Benchmark]: Toolchain (without parser) took 217456.40 ms. Allocated memory was 1.5 GB in the beginning and 5.1 GB in the end (delta: 3.6 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-11-12 19:29:18,232 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:29:18,233 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1134.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-11-12 19:29:18,234 INFO L168 Benchmark]: Boogie Procedure Inliner took 193.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -866.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2018-11-12 19:29:18,234 INFO L168 Benchmark]: Boogie Preprocessor took 141.87 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-12 19:29:18,235 INFO L168 Benchmark]: RCFGBuilder took 6182.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 256.4 MB). Peak memory consumption was 256.4 MB. Max. memory is 7.1 GB. [2018-11-12 19:29:18,236 INFO L168 Benchmark]: TraceAbstraction took 209799.40 ms. Allocated memory was 2.3 GB in the beginning and 5.1 GB in the end (delta: 2.9 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -546.6 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. [2018-11-12 19:29:18,242 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1134.46 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 193.34 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 739.8 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -866.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.87 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 6182.06 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 256.4 MB). Peak memory consumption was 256.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 209799.40 ms. Allocated memory was 2.3 GB in the beginning and 5.1 GB in the end (delta: 2.9 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -546.6 MB). Peak memory consumption was 2.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 178]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 178). Cancelled while BasicCegarLoop was analyzing trace of length 601 with TraceHistMax 5,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 13 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 209.7s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 184.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2250 SDtfs, 19884 SDslu, 1669 SDs, 0 SdLazy, 27421 SolverSat, 4127 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 74.2s Time, PredicateUnifierStatistics: 10 DeclaredPredicates, 2110 GetRequests, 1834 SyntacticMatches, 138 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1793 ImplicationChecksByTransitivity, 7.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4629occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 7.5s AbstIntTime, 6 AbstIntIterations, 5 AbstIntStrong, 0.9977596534290664 AbsIntWeakeningRatio, 0.07537934410181106 AbsIntAvgWeakeningVarsNumRemoved, 10.51786588350465 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 972 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 2269 NumberOfCodeBlocks, 2269 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 2262 ConstructedInterpolants, 0 QuantifiedInterpolants, 2568852 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 2 PerfectInterpolantSequences, 1180/2116 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown