java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label21_false-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dd2f093 [2018-07-23 18:20:39,335 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 18:20:39,337 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 18:20:39,350 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 18:20:39,350 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 18:20:39,352 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 18:20:39,353 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 18:20:39,355 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 18:20:39,357 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 18:20:39,358 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 18:20:39,359 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 18:20:39,359 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 18:20:39,360 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 18:20:39,361 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 18:20:39,362 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 18:20:39,363 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 18:20:39,364 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 18:20:39,366 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 18:20:39,367 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 18:20:39,369 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 18:20:39,370 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 18:20:39,371 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 18:20:39,373 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-23 18:20:39,383 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 18:20:39,383 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 18:20:39,384 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 18:20:39,384 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 18:20:39,386 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-old.epf [2018-07-23 18:20:39,417 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 18:20:39,418 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 18:20:39,419 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-23 18:20:39,419 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-23 18:20:39,419 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-23 18:20:39,422 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-23 18:20:39,422 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-23 18:20:39,423 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-23 18:20:39,423 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-23 18:20:39,423 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-23 18:20:39,423 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-23 18:20:39,424 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-23 18:20:39,425 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-23 18:20:39,425 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-23 18:20:39,425 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-23 18:20:39,426 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-23 18:20:39,426 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-23 18:20:39,427 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-23 18:20:39,427 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-23 18:20:39,427 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 18:20:39,427 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-23 18:20:39,427 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-23 18:20:39,428 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-23 18:20:39,428 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-23 18:20:39,428 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 18:20:39,428 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-23 18:20:39,430 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-23 18:20:39,430 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-23 18:20:39,430 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-23 18:20:39,431 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-23 18:20:39,431 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 18:20:39,431 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-23 18:20:39,431 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-23 18:20:39,478 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 18:20:39,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 18:20:39,501 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 18:20:39,503 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-23 18:20:39,504 INFO L276 PluginConnector]: CDTParser initialized [2018-07-23 18:20:39,505 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label21_false-unreach-call_false-termination.c [2018-07-23 18:20:39,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52ab570ca/b226b1d3fa4d4c7c92a14b20641f56ce/FLAG5fe8ab5d6 [2018-07-23 18:20:40,167 INFO L276 CDTParser]: Found 1 translation units. [2018-07-23 18:20:40,168 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label21_false-unreach-call_false-termination.c [2018-07-23 18:20:40,185 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52ab570ca/b226b1d3fa4d4c7c92a14b20641f56ce/FLAG5fe8ab5d6 [2018-07-23 18:20:40,205 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/52ab570ca/b226b1d3fa4d4c7c92a14b20641f56ce [2018-07-23 18:20:40,218 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 18:20:40,220 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-23 18:20:40,221 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-23 18:20:40,221 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-23 18:20:40,229 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-23 18:20:40,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:20:40" (1/1) ... [2018-07-23 18:20:40,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d1bd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:40, skipping insertion in model container [2018-07-23 18:20:40,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.07 06:20:40" (1/1) ... [2018-07-23 18:20:40,472 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-23 18:20:40,785 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 18:20:40,804 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-23 18:20:40,918 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-23 18:20:40,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:40 WrapperNode [2018-07-23 18:20:40,963 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-23 18:20:40,964 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-23 18:20:40,964 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-23 18:20:40,965 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-23 18:20:40,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:40" (1/1) ... [2018-07-23 18:20:41,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:40" (1/1) ... [2018-07-23 18:20:41,080 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-23 18:20:41,081 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 18:20:41,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 18:20:41,081 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 18:20:41,092 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:40" (1/1) ... [2018-07-23 18:20:41,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:40" (1/1) ... [2018-07-23 18:20:41,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:40" (1/1) ... [2018-07-23 18:20:41,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:40" (1/1) ... [2018-07-23 18:20:41,143 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:40" (1/1) ... [2018-07-23 18:20:41,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:40" (1/1) ... [2018-07-23 18:20:41,169 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:40" (1/1) ... [2018-07-23 18:20:41,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 18:20:41,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 18:20:41,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 18:20:41,183 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 18:20:41,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:40" (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 [2018-07-23 18:20:41,401 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-23 18:20:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-23 18:20:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 18:20:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 18:20:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 18:20:41,402 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 18:20:41,402 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_output [2018-07-23 18:20:41,403 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_output [2018-07-23 18:20:44,459 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 18:20:44,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:20:44 BoogieIcfgContainer [2018-07-23 18:20:44,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 18:20:44,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 18:20:44,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 18:20:44,465 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 18:20:44,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.07 06:20:40" (1/3) ... [2018-07-23 18:20:44,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6771892e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:20:44, skipping insertion in model container [2018-07-23 18:20:44,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.07 06:20:40" (2/3) ... [2018-07-23 18:20:44,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6771892e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 06:20:44, skipping insertion in model container [2018-07-23 18:20:44,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 06:20:44" (3/3) ... [2018-07-23 18:20:44,469 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label21_false-unreach-call_false-termination.c [2018-07-23 18:20:44,479 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-23 18:20:44,488 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 18:20:44,544 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 18:20:44,545 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 18:20:44,546 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 18:20:44,546 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-23 18:20:44,546 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 18:20:44,546 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 18:20:44,546 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 18:20:44,547 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 18:20:44,547 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 18:20:44,573 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-07-23 18:20:44,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2018-07-23 18:20:44,585 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:20:44,586 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:20:44,586 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:20:44,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1336061584, now seen corresponding path program 1 times [2018-07-23 18:20:44,595 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:20:44,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:44,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:20:44,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:44,649 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:20:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:20:45,222 WARN L169 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-23 18:20:45,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:20:45,359 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:20:45,359 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 18:20:45,359 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:20:45,366 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 18:20:45,381 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 18:20:45,382 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 18:20:45,385 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-07-23 18:20:47,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:20:47,119 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-07-23 18:20:47,121 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 18:20:47,122 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 90 [2018-07-23 18:20:47,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:20:47,142 INFO L225 Difference]: With dead ends: 550 [2018-07-23 18:20:47,142 INFO L226 Difference]: Without dead ends: 340 [2018-07-23 18:20:47,148 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 18:20:47,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-07-23 18:20:47,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-07-23 18:20:47,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-07-23 18:20:47,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 571 transitions. [2018-07-23 18:20:47,229 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 571 transitions. Word has length 90 [2018-07-23 18:20:47,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:20:47,230 INFO L471 AbstractCegarLoop]: Abstraction has 340 states and 571 transitions. [2018-07-23 18:20:47,230 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 18:20:47,230 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 571 transitions. [2018-07-23 18:20:47,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2018-07-23 18:20:47,237 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:20:47,237 INFO L353 BasicCegarLoop]: trace histogram [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] [2018-07-23 18:20:47,237 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:20:47,238 INFO L82 PathProgramCache]: Analyzing trace with hash 1279562103, now seen corresponding path program 1 times [2018-07-23 18:20:47,238 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:20:47,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:47,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:20:47,240 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:47,240 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:20:47,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:20:47,473 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:20:47,473 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:20:47,473 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 18:20:47,474 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:20:47,476 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-23 18:20:47,476 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-23 18:20:47,476 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 18:20:47,476 INFO L87 Difference]: Start difference. First operand 340 states and 571 transitions. Second operand 3 states. [2018-07-23 18:20:48,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:20:48,470 INFO L93 Difference]: Finished difference Result 946 states and 1654 transitions. [2018-07-23 18:20:48,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 18:20:48,471 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2018-07-23 18:20:48,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:20:48,480 INFO L225 Difference]: With dead ends: 946 [2018-07-23 18:20:48,480 INFO L226 Difference]: Without dead ends: 612 [2018-07-23 18:20:48,484 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-23 18:20:48,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2018-07-23 18:20:48,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 612. [2018-07-23 18:20:48,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2018-07-23 18:20:48,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 987 transitions. [2018-07-23 18:20:48,526 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 987 transitions. Word has length 108 [2018-07-23 18:20:48,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:20:48,527 INFO L471 AbstractCegarLoop]: Abstraction has 612 states and 987 transitions. [2018-07-23 18:20:48,527 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-23 18:20:48,527 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 987 transitions. [2018-07-23 18:20:48,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2018-07-23 18:20:48,534 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:20:48,535 INFO L353 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:20:48,535 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:20:48,535 INFO L82 PathProgramCache]: Analyzing trace with hash 647093955, now seen corresponding path program 1 times [2018-07-23 18:20:48,536 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:20:48,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:48,537 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:20:48,537 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:48,537 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:20:48,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:20:48,966 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:20:48,966 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 18:20:48,966 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 18:20:48,967 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:20:48,970 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 18:20:48,970 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 18:20:48,970 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-23 18:20:48,971 INFO L87 Difference]: Start difference. First operand 612 states and 987 transitions. Second operand 6 states. [2018-07-23 18:20:51,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:20:51,167 INFO L93 Difference]: Finished difference Result 1625 states and 2647 transitions. [2018-07-23 18:20:51,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 18:20:51,168 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 134 [2018-07-23 18:20:51,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:20:51,176 INFO L225 Difference]: With dead ends: 1625 [2018-07-23 18:20:51,177 INFO L226 Difference]: Without dead ends: 1019 [2018-07-23 18:20:51,181 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-23 18:20:51,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2018-07-23 18:20:51,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1009. [2018-07-23 18:20:51,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1009 states. [2018-07-23 18:20:51,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1009 states to 1009 states and 1456 transitions. [2018-07-23 18:20:51,246 INFO L78 Accepts]: Start accepts. Automaton has 1009 states and 1456 transitions. Word has length 134 [2018-07-23 18:20:51,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:20:51,250 INFO L471 AbstractCegarLoop]: Abstraction has 1009 states and 1456 transitions. [2018-07-23 18:20:51,250 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 18:20:51,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1009 states and 1456 transitions. [2018-07-23 18:20:51,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-07-23 18:20:51,258 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:20:51,259 INFO L353 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:20:51,259 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:20:51,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1124644534, now seen corresponding path program 1 times [2018-07-23 18:20:51,260 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:20:51,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:51,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:20:51,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:20:51,263 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:20:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:20:51,790 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 18:20:51,790 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:20:51,791 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:20:51,792 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 147 with the following transitions: [2018-07-23 18:20:51,794 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [30], [34], [38], [41], [42], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [169], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [781], [782], [783], [784], [786], [787] [2018-07-23 18:20:51,897 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 18:20:51,897 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-23 18:22:50,909 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-07-23 18:22:50,910 INFO L272 AbstractInterpreter]: Visited 94 different actions 159 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-07-23 18:22:50,936 INFO L395 sIntCurrentIteration]: Generating AbsInt predicates [2018-07-23 18:23:06,986 INFO L232 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 80.12% of their original sizes. [2018-07-23 18:23:06,987 INFO L408 sIntCurrentIteration]: Unifying AI predicates [2018-07-23 18:23:10,540 INFO L419 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-07-23 18:23:10,541 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-07-23 18:23:10,542 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2018-07-23 18:23:10,542 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-23 18:23:10,543 INFO L450 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-07-23 18:23:10,543 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-07-23 18:23:10,543 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2018-07-23 18:23:10,544 INFO L87 Difference]: Start difference. First operand 1009 states and 1456 transitions. Second operand 17 states. [2018-07-23 18:23:43,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 18:23:43,723 INFO L93 Difference]: Finished difference Result 2257 states and 3261 transitions. [2018-07-23 18:23:43,724 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-07-23 18:23:43,724 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 146 [2018-07-23 18:23:43,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 18:23:43,733 INFO L225 Difference]: With dead ends: 2257 [2018-07-23 18:23:43,733 INFO L226 Difference]: Without dead ends: 1069 [2018-07-23 18:23:43,737 INFO L573 BasicCegarLoop]: 2 DeclaredPredicates, 161 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=226, Invalid=830, Unknown=0, NotChecked=0, Total=1056 [2018-07-23 18:23:43,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1069 states. [2018-07-23 18:23:43,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1069 to 1069. [2018-07-23 18:23:43,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1069 states. [2018-07-23 18:23:43,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1069 states to 1069 states and 1426 transitions. [2018-07-23 18:23:43,774 INFO L78 Accepts]: Start accepts. Automaton has 1069 states and 1426 transitions. Word has length 146 [2018-07-23 18:23:43,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 18:23:43,774 INFO L471 AbstractCegarLoop]: Abstraction has 1069 states and 1426 transitions. [2018-07-23 18:23:43,774 INFO L472 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-07-23 18:23:43,774 INFO L276 IsEmpty]: Start isEmpty. Operand 1069 states and 1426 transitions. [2018-07-23 18:23:43,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-07-23 18:23:43,779 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 18:23:43,780 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 18:23:43,780 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___false_unreach_call_false_termination_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-23 18:23:43,780 INFO L82 PathProgramCache]: Analyzing trace with hash -165197669, now seen corresponding path program 1 times [2018-07-23 18:23:43,780 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-23 18:23:43,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:23:43,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:23:43,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-23 18:23:43,782 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-23 18:23:43,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:23:44,277 WARN L169 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-07-23 18:23:44,440 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 69 proven. 12 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-07-23 18:23:44,441 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:23:44,441 INFO L191 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-23 18:23:44,441 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 157 with the following transitions: [2018-07-23 18:23:44,442 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [26], [29], [30], [34], [38], [42], [45], [46], [50], [54], [58], [62], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [169], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [270], [274], [278], [282], [286], [290], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [381], [383], [781], [782], [783], [784], [786], [787] [2018-07-23 18:23:44,448 INFO L148 AbstractInterpreter]: Using domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-23 18:23:44,448 INFO L101 FixpointEngine]: Starting fixpoint engine with domain CompoundDomain (maxUnwinding=3, maxParallelStates=2) Received shutdown request... [2018-07-23 18:24:46,414 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-23 18:24:46,416 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-23 18:24:46,419 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-23 18:24:46,419 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-23 18:24:46,419 INFO L191 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 [2018-07-23 18:24:46,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-23 18:24:46,434 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-23 18:24:46,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 18:24:46,572 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-23 18:24:46,598 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-23 18:24:46,800 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-23 18:24:46,800 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 18:24:46,808 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 18:24:46,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 06:24:46 BoogieIcfgContainer [2018-07-23 18:24:46,808 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 18:24:46,809 INFO L168 Benchmark]: Toolchain (without parser) took 246590.95 ms. Allocated memory was 1.5 GB in the beginning and 2.5 GB in the end (delta: 1.0 GB). Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 13.0 MB). Peak memory consumption was 1.1 GB. Max. memory is 7.1 GB. [2018-07-23 18:24:46,810 INFO L168 Benchmark]: CDTParser took 0.23 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. [2018-07-23 18:24:46,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.53 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-23 18:24:46,812 INFO L168 Benchmark]: Boogie Procedure Inliner took 116.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-07-23 18:24:46,813 INFO L168 Benchmark]: Boogie Preprocessor took 101.40 ms. Allocated memory is still 1.5 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 18:24:46,813 INFO L168 Benchmark]: RCFGBuilder took 3277.82 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 637.0 MB). Free memory was 1.3 GB in the beginning and 1.9 GB in the end (delta: -592.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 7.1 GB. [2018-07-23 18:24:46,814 INFO L168 Benchmark]: TraceAbstraction took 242347.12 ms. Allocated memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: 404.2 MB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 563.5 MB). Peak memory consumption was 967.7 MB. Max. memory is 7.1 GB. [2018-07-23 18:24:46,822 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 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 742.53 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 116.65 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.40 ms. Allocated memory is still 1.5 GB. Free memory is still 1.3 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3277.82 ms. Allocated memory was 1.5 GB in the beginning and 2.1 GB in the end (delta: 637.0 MB). Free memory was 1.3 GB in the beginning and 1.9 GB in the end (delta: -592.8 MB). Peak memory consumption was 62.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 242347.12 ms. Allocated memory was 2.1 GB in the beginning and 2.5 GB in the end (delta: 404.2 MB). Free memory was 1.9 GB in the beginning and 1.4 GB in the end (delta: 563.5 MB). Peak memory consumption was 967.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 425]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 425). Cancelled while BasicCegarLoop was analyzing trace of length 157 with TraceHistMax 4, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 6 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. TIMEOUT Result, 242.2s OverallTime, 5 OverallIterations, 4 TraceHistogramMax, 38.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 593 SDtfs, 1877 SDslu, 440 SDs, 0 SdLazy, 2616 SolverSat, 632 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 12.2s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 180 GetRequests, 136 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1069occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 181.1s AbstIntTime, 2 AbstIntIterations, 1 AbstIntStrong, 0.9938964315751532 AbsIntWeakeningRatio, 0.2413793103448276 AbsIntAvgWeakeningVarsNumRemoved, 168.05517241379312 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 478 NumberOfCodeBlocks, 478 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 474 ConstructedInterpolants, 0 QuantifiedInterpolants, 174608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 116/118 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label21_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-23_18-24-46-841.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem01_label21_false-unreach-call_false-termination.c_svcomp-Reach-64bit-Taipan_Default-old.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_18-24-46-841.csv Completed graceful shutdown