java -Xss4m -Xmx6000000000 -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 ../../../releaseScripts/default/UAutomizer-linux/csv -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label44_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-71425fa [2018-07-21 20:00:40,049 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-21 20:00:40,051 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-21 20:00:40,063 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-21 20:00:40,063 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-21 20:00:40,064 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-21 20:00:40,065 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-21 20:00:40,075 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-21 20:00:40,078 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-21 20:00:40,079 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-21 20:00:40,080 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-21 20:00:40,081 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-21 20:00:40,082 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-21 20:00:40,083 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-21 20:00:40,093 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-21 20:00:40,095 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-21 20:00:40,095 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-21 20:00:40,097 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-21 20:00:40,099 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-21 20:00:40,103 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-21 20:00:40,104 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-21 20:00:40,105 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-21 20:00:40,109 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-07-21 20:00:40,116 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-21 20:00:40,116 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-21 20:00:40,117 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-21 20:00:40,118 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-21 20:00:40,118 INFO L98 SettingsManager]: Beginning loading settings from /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-07-21 20:00:40,134 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-21 20:00:40,134 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-21 20:00:40,135 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-07-21 20:00:40,135 INFO L133 SettingsManager]: * User list type=DISABLED [2018-07-21 20:00:40,135 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-07-21 20:00:40,136 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-07-21 20:00:40,136 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-07-21 20:00:40,136 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-07-21 20:00:40,136 INFO L133 SettingsManager]: * Log string format=TERM [2018-07-21 20:00:40,136 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-07-21 20:00:40,137 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-07-21 20:00:40,137 INFO L133 SettingsManager]: * Interval Domain=false [2018-07-21 20:00:40,138 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-07-21 20:00:40,138 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-07-21 20:00:40,138 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-07-21 20:00:40,138 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-07-21 20:00:40,138 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-07-21 20:00:40,138 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-07-21 20:00:40,139 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-07-21 20:00:40,139 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-07-21 20:00:40,139 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-21 20:00:40,139 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-07-21 20:00:40,139 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-07-21 20:00:40,140 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-07-21 20:00:40,140 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-07-21 20:00:40,140 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-21 20:00:40,140 INFO L133 SettingsManager]: * Interpolant automaton=TWOTRACK [2018-07-21 20:00:40,140 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-07-21 20:00:40,141 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-07-21 20:00:40,141 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-07-21 20:00:40,141 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-21 20:00:40,141 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-07-21 20:00:40,141 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-21 20:00:40,141 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-07-21 20:00:40,142 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-07-21 20:00:40,195 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-21 20:00:40,212 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-21 20:00:40,218 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-21 20:00:40,220 INFO L271 PluginConnector]: Initializing CDTParser... [2018-07-21 20:00:40,220 INFO L276 PluginConnector]: CDTParser initialized [2018-07-21 20:00:40,222 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label44_true-unreach-call.c [2018-07-21 20:00:40,614 INFO L220 CDTParser]: Created temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/ebce74d02/21ead012566c42b1b24913e8147cc6a4/FLAG9480b0f34 [2018-07-21 20:00:41,079 INFO L276 CDTParser]: Found 1 translation units. [2018-07-21 20:00:41,081 INFO L158 CDTParser]: Scanning /storage/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label44_true-unreach-call.c [2018-07-21 20:00:41,136 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/ebce74d02/21ead012566c42b1b24913e8147cc6a4/FLAG9480b0f34 [2018-07-21 20:00:41,150 INFO L332 CDTParser]: Successfully deleted /storage/ultimate/releaseScripts/default/UAutomizer-linux/data/ebce74d02/21ead012566c42b1b24913e8147cc6a4 [2018-07-21 20:00:41,162 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-21 20:00:41,169 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-07-21 20:00:41,174 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-07-21 20:00:41,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-07-21 20:00:41,182 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-07-21 20:00:41,183 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:00:41" (1/1) ... [2018-07-21 20:00:41,187 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77d1fbe8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:41, skipping insertion in model container [2018-07-21 20:00:41,188 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:00:41" (1/1) ... [2018-07-21 20:00:41,482 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-07-21 20:00:42,356 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 20:00:42,376 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-07-21 20:00:42,883 INFO L175 PostProcessor]: Settings: Checked method=main [2018-07-21 20:00:43,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:43 WrapperNode [2018-07-21 20:00:43,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-07-21 20:00:43,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-21 20:00:43,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-21 20:00:43,108 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-21 20:00:43,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:43" (1/1) ... [2018-07-21 20:00:43,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:43" (1/1) ... [2018-07-21 20:00:43,483 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-21 20:00:43,484 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-21 20:00:43,484 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-21 20:00:43,484 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-21 20:00:43,495 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:43" (1/1) ... [2018-07-21 20:00:43,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:43" (1/1) ... [2018-07-21 20:00:43,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:43" (1/1) ... [2018-07-21 20:00:43,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:43" (1/1) ... [2018-07-21 20:00:44,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:43" (1/1) ... [2018-07-21 20:00:44,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:43" (1/1) ... [2018-07-21 20:00:44,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:43" (1/1) ... [2018-07-21 20:00:44,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-21 20:00:44,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-21 20:00:44,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-21 20:00:44,386 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-21 20:00:44,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:43" (1/1) ... No working directory specified, using /storage/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 [2018-07-21 20:00:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-07-21 20:00:44,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-07-21 20:00:44,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-21 20:00:44,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-21 20:00:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-21 20:00:44,465 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-21 20:00:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 20:00:44,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output2 [2018-07-21 20:00:44,465 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 20:00:44,465 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_output [2018-07-21 20:00:54,662 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-21 20:00:54,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:00:54 BoogieIcfgContainer [2018-07-21 20:00:54,664 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-21 20:00:54,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-21 20:00:54,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-21 20:00:54,668 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-21 20:00:54,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:00:41" (1/3) ... [2018-07-21 20:00:54,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e88d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:00:54, skipping insertion in model container [2018-07-21 20:00:54,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:00:43" (2/3) ... [2018-07-21 20:00:54,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e88d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:00:54, skipping insertion in model container [2018-07-21 20:00:54,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:00:54" (3/3) ... [2018-07-21 20:00:54,673 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label44_true-unreach-call.c [2018-07-21 20:00:54,680 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-07-21 20:00:54,691 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-21 20:00:54,761 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-21 20:00:54,761 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-21 20:00:54,762 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-21 20:00:54,762 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-07-21 20:00:54,762 INFO L376 AbstractCegarLoop]: Backedges is TWOTRACK [2018-07-21 20:00:54,762 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-21 20:00:54,762 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-21 20:00:54,762 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-21 20:00:54,762 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-21 20:00:54,803 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-07-21 20:00:54,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-07-21 20:00:54,811 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:00:54,812 INFO L358 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] [2018-07-21 20:00:54,813 INFO L414 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:00:54,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1139598196, now seen corresponding path program 1 times [2018-07-21 20:00:54,819 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:00:54,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:00:54,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:00:54,862 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:00:54,862 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:00:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:00:55,295 WARN L169 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 6 DAG size of output: 3 [2018-07-21 20:00:55,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:00:55,312 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:00:55,312 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 20:00:55,312 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:00:55,316 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 20:00:55,333 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 20:00:55,333 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 20:00:55,337 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-07-21 20:01:04,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:01:04,556 INFO L93 Difference]: Finished difference Result 2118 states and 3937 transitions. [2018-07-21 20:01:04,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 20:01:04,559 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 42 [2018-07-21 20:01:04,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:01:04,590 INFO L225 Difference]: With dead ends: 2118 [2018-07-21 20:01:04,590 INFO L226 Difference]: Without dead ends: 1508 [2018-07-21 20:01:04,605 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 20:01:04,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2018-07-21 20:01:04,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1039. [2018-07-21 20:01:04,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1039 states. [2018-07-21 20:01:04,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1596 transitions. [2018-07-21 20:01:04,743 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1596 transitions. Word has length 42 [2018-07-21 20:01:04,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:01:04,744 INFO L471 AbstractCegarLoop]: Abstraction has 1039 states and 1596 transitions. [2018-07-21 20:01:04,744 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 20:01:04,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1596 transitions. [2018-07-21 20:01:04,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2018-07-21 20:01:04,753 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:01:04,754 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:01:04,756 INFO L414 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:01:04,756 INFO L82 PathProgramCache]: Analyzing trace with hash -1513530014, now seen corresponding path program 1 times [2018-07-21 20:01:04,756 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:01:04,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:01:04,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:01:04,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:01:04,758 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:01:04,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:01:05,185 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:01:05,185 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 20:01:05,185 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 20:01:05,187 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 118 with the following transitions: [2018-07-21 20:01:05,189 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [735], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [970], [972], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1207], [1215], [1223], [1228], [1232], [1236], [1240], [1244], [1247], [2303], [2304], [2305], [2306], [2308], [2309] [2018-07-21 20:01:05,261 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 20:01:05,262 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 20:01:10,799 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 20:01:29,296 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-07-21 20:01:29,297 INFO L272 AbstractInterpreter]: Visited 83 different actions 235 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-07-21 20:01:29,326 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-07-21 20:01:29,327 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 20:01:29,327 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/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 [2018-07-21 20:01:29,335 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:01:29,335 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 20:01:29,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:01:29,448 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 20:01:31,327 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 4 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:01:31,327 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-21 20:01:31,767 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:01:31,804 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-07-21 20:01:31,804 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [7, 6] total 12 [2018-07-21 20:01:31,804 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:01:31,805 INFO L450 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-21 20:01:31,805 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-21 20:01:31,806 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=103, Unknown=1, NotChecked=0, Total=132 [2018-07-21 20:01:31,806 INFO L87 Difference]: Start difference. First operand 1039 states and 1596 transitions. Second operand 3 states. [2018-07-21 20:01:38,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:01:38,518 INFO L93 Difference]: Finished difference Result 2956 states and 4619 transitions. [2018-07-21 20:01:38,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-21 20:01:38,519 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2018-07-21 20:01:38,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:01:38,536 INFO L225 Difference]: With dead ends: 2956 [2018-07-21 20:01:38,536 INFO L226 Difference]: Without dead ends: 1923 [2018-07-21 20:01:38,544 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 229 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=28, Invalid=103, Unknown=1, NotChecked=0, Total=132 [2018-07-21 20:01:38,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1923 states. [2018-07-21 20:01:38,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1923 to 1918. [2018-07-21 20:01:38,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1918 states. [2018-07-21 20:01:38,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1918 states to 1918 states and 2908 transitions. [2018-07-21 20:01:38,659 INFO L78 Accepts]: Start accepts. Automaton has 1918 states and 2908 transitions. Word has length 117 [2018-07-21 20:01:38,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:01:38,660 INFO L471 AbstractCegarLoop]: Abstraction has 1918 states and 2908 transitions. [2018-07-21 20:01:38,660 INFO L472 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-21 20:01:38,660 INFO L276 IsEmpty]: Start isEmpty. Operand 1918 states and 2908 transitions. [2018-07-21 20:01:38,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2018-07-21 20:01:38,685 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:01:38,686 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:01:38,686 INFO L414 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:01:38,686 INFO L82 PathProgramCache]: Analyzing trace with hash 1671593551, now seen corresponding path program 1 times [2018-07-21 20:01:38,686 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:01:38,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:01:38,688 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:01:38,688 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:01:38,688 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:01:38,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:01:39,041 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:01:39,042 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:01:39,042 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 20:01:39,042 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:01:39,043 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 20:01:39,043 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 20:01:39,043 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 20:01:39,044 INFO L87 Difference]: Start difference. First operand 1918 states and 2908 transitions. Second operand 4 states. [2018-07-21 20:01:47,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:01:47,198 INFO L93 Difference]: Finished difference Result 6883 states and 10843 transitions. [2018-07-21 20:01:47,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 20:01:47,198 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 152 [2018-07-21 20:01:47,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:01:47,242 INFO L225 Difference]: With dead ends: 6883 [2018-07-21 20:01:47,242 INFO L226 Difference]: Without dead ends: 4971 [2018-07-21 20:01:47,257 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 20:01:47,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4971 states. [2018-07-21 20:01:47,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4971 to 4537. [2018-07-21 20:01:47,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4537 states. [2018-07-21 20:01:47,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4537 states to 4537 states and 6760 transitions. [2018-07-21 20:01:47,524 INFO L78 Accepts]: Start accepts. Automaton has 4537 states and 6760 transitions. Word has length 152 [2018-07-21 20:01:47,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:01:47,525 INFO L471 AbstractCegarLoop]: Abstraction has 4537 states and 6760 transitions. [2018-07-21 20:01:47,525 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 20:01:47,525 INFO L276 IsEmpty]: Start isEmpty. Operand 4537 states and 6760 transitions. [2018-07-21 20:01:47,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2018-07-21 20:01:47,533 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:01:47,533 INFO L358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:01:47,533 INFO L414 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:01:47,534 INFO L82 PathProgramCache]: Analyzing trace with hash -59479135, now seen corresponding path program 1 times [2018-07-21 20:01:47,535 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:01:47,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:01:47,536 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:01:47,536 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:01:47,536 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:01:47,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:01:47,959 WARN L169 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-07-21 20:01:48,367 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:01:48,367 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:01:48,368 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-21 20:01:48,368 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:01:48,368 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-21 20:01:48,369 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-21 20:01:48,370 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-07-21 20:01:48,371 INFO L87 Difference]: Start difference. First operand 4537 states and 6760 transitions. Second operand 6 states. [2018-07-21 20:01:52,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:01:52,782 INFO L93 Difference]: Finished difference Result 9177 states and 13862 transitions. [2018-07-21 20:01:52,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-21 20:01:52,827 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 184 [2018-07-21 20:01:52,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:01:52,855 INFO L225 Difference]: With dead ends: 9177 [2018-07-21 20:01:52,855 INFO L226 Difference]: Without dead ends: 4646 [2018-07-21 20:01:52,870 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-07-21 20:01:52,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4646 states. [2018-07-21 20:01:53,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4646 to 4611. [2018-07-21 20:01:53,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4611 states. [2018-07-21 20:01:53,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4611 states to 4611 states and 6034 transitions. [2018-07-21 20:01:53,046 INFO L78 Accepts]: Start accepts. Automaton has 4611 states and 6034 transitions. Word has length 184 [2018-07-21 20:01:53,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:01:53,047 INFO L471 AbstractCegarLoop]: Abstraction has 4611 states and 6034 transitions. [2018-07-21 20:01:53,047 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-21 20:01:53,047 INFO L276 IsEmpty]: Start isEmpty. Operand 4611 states and 6034 transitions. [2018-07-21 20:01:53,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-07-21 20:01:53,054 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:01:53,055 INFO L358 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 20:01:53,055 INFO L414 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:01:53,055 INFO L82 PathProgramCache]: Analyzing trace with hash -193501207, now seen corresponding path program 1 times [2018-07-21 20:01:53,055 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:01:53,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:01:53,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:01:53,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:01:53,056 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:01:53,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:01:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 71 proven. 7 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2018-07-21 20:01:53,380 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 20:01:53,381 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 20:01:53,381 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 211 with the following transitions: [2018-07-21 20:01:53,381 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [735], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [970], [972], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1207], [1215], [1223], [1228], [1232], [1236], [1240], [1244], [1247], [1248], [1252], [1256], [1260], [1264], [1268], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1307], [1311], [1315], [1319], [1323], [1326], [2303], [2304], [2305], [2306], [2308], [2309] [2018-07-21 20:01:53,390 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 20:01:53,390 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 20:01:57,175 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-07-21 20:02:14,855 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-07-21 20:02:14,856 INFO L272 AbstractInterpreter]: Visited 102 different actions 292 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 26 variables. [2018-07-21 20:02:14,862 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-07-21 20:02:14,863 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 20:02:14,863 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 20:02:14,870 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:02:14,870 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 20:02:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:02:14,951 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 20:02:15,016 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:02:15,017 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-21 20:02:15,159 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 143 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-21 20:02:15,180 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 20:02:15,180 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-07-21 20:02:15,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:02:15,196 INFO L282 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 20:02:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:02:15,350 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 20:02:15,463 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 71 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-07-21 20:02:15,463 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-07-21 20:02:15,725 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-07-21 20:02:15,728 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-07-21 20:02:15,728 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 12 [2018-07-21 20:02:15,728 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:02:15,729 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-21 20:02:15,729 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-21 20:02:15,729 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-07-21 20:02:15,730 INFO L87 Difference]: Start difference. First operand 4611 states and 6034 transitions. Second operand 5 states. [2018-07-21 20:02:19,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:02:19,284 INFO L93 Difference]: Finished difference Result 9679 states and 12749 transitions. [2018-07-21 20:02:19,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-21 20:02:19,285 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2018-07-21 20:02:19,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:02:19,306 INFO L225 Difference]: With dead ends: 9679 [2018-07-21 20:02:19,306 INFO L226 Difference]: Without dead ends: 5074 [2018-07-21 20:02:19,320 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 832 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-07-21 20:02:19,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5074 states. [2018-07-21 20:02:19,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5074 to 5074. [2018-07-21 20:02:19,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5074 states. [2018-07-21 20:02:19,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5074 states to 5074 states and 6136 transitions. [2018-07-21 20:02:19,473 INFO L78 Accepts]: Start accepts. Automaton has 5074 states and 6136 transitions. Word has length 210 [2018-07-21 20:02:19,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:02:19,473 INFO L471 AbstractCegarLoop]: Abstraction has 5074 states and 6136 transitions. [2018-07-21 20:02:19,474 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-21 20:02:19,475 INFO L276 IsEmpty]: Start isEmpty. Operand 5074 states and 6136 transitions. [2018-07-21 20:02:19,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2018-07-21 20:02:19,480 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:02:19,480 INFO L358 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-07-21 20:02:19,480 INFO L414 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:02:19,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1626428445, now seen corresponding path program 1 times [2018-07-21 20:02:19,488 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:02:19,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:19,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:02:19,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:19,490 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:02:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:02:19,850 INFO L134 CoverageAnalysis]: Checked inductivity of 142 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-07-21 20:02:19,851 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-21 20:02:19,851 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-21 20:02:19,851 INFO L254 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-07-21 20:02:19,851 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-21 20:02:19,852 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-21 20:02:19,852 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 20:02:19,853 INFO L87 Difference]: Start difference. First operand 5074 states and 6136 transitions. Second operand 4 states. [2018-07-21 20:02:25,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-21 20:02:25,402 INFO L93 Difference]: Finished difference Result 15000 states and 18953 transitions. [2018-07-21 20:02:25,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-21 20:02:25,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 224 [2018-07-21 20:02:25,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-21 20:02:25,443 INFO L225 Difference]: With dead ends: 15000 [2018-07-21 20:02:25,443 INFO L226 Difference]: Without dead ends: 9932 [2018-07-21 20:02:25,464 INFO L578 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-07-21 20:02:25,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9932 states. [2018-07-21 20:02:25,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9932 to 9931. [2018-07-21 20:02:25,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9931 states. [2018-07-21 20:02:25,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9931 states to 9931 states and 11758 transitions. [2018-07-21 20:02:25,852 INFO L78 Accepts]: Start accepts. Automaton has 9931 states and 11758 transitions. Word has length 224 [2018-07-21 20:02:25,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-21 20:02:25,852 INFO L471 AbstractCegarLoop]: Abstraction has 9931 states and 11758 transitions. [2018-07-21 20:02:25,853 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-21 20:02:25,853 INFO L276 IsEmpty]: Start isEmpty. Operand 9931 states and 11758 transitions. [2018-07-21 20:02:25,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-07-21 20:02:25,864 INFO L350 BasicCegarLoop]: Found error trace [2018-07-21 20:02:25,864 INFO L358 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-21 20:02:25,865 INFO L414 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_ultimate_trunk_examples_svcomp_eca_rers_____Problem___label___true_unreach_call_c__calculate_outputErr0AssertViolationERROR_FUNCTION]=== [2018-07-21 20:02:25,865 INFO L82 PathProgramCache]: Analyzing trace with hash -2004071978, now seen corresponding path program 1 times [2018-07-21 20:02:25,865 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-07-21 20:02:25,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:25,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:02:25,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-07-21 20:02:25,867 INFO L282 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-07-21 20:02:25,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:02:26,668 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 75 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-07-21 20:02:26,669 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 20:02:26,669 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-07-21 20:02:26,669 INFO L199 CegarAbsIntRunner]: Running AI on error trace of length 291 with the following transitions: [2018-07-21 20:02:26,670 INFO L201 CegarAbsIntRunner]: [0], [1], [5], [9], [15], [19], [21], [735], [742], [750], [758], [766], [774], [782], [790], [798], [806], [814], [822], [830], [838], [846], [854], [862], [870], [878], [886], [894], [902], [910], [918], [926], [934], [942], [950], [958], [966], [970], [972], [975], [983], [991], [999], [1007], [1015], [1023], [1031], [1039], [1047], [1055], [1063], [1071], [1079], [1087], [1095], [1103], [1111], [1119], [1127], [1135], [1143], [1151], [1159], [1167], [1175], [1183], [1191], [1199], [1207], [1215], [1223], [1228], [1232], [1236], [1240], [1244], [1248], [1252], [1256], [1260], [1264], [1268], [1279], [1283], [1287], [1291], [1295], [1299], [1303], [1306], [1307], [1311], [1315], [1319], [1323], [1327], [1331], [1342], [1346], [1350], [1354], [1358], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1452], [1456], [1460], [1464], [1475], [1479], [1483], [1487], [1491], [1495], [1499], [1503], [1514], [1525], [1529], [1540], [1544], [1548], [1552], [1556], [1560], [1564], [1568], [1572], [1583], [1587], [1591], [1602], [1606], [1617], [1621], [1625], [1636], [1647], [1651], [1655], [1659], [1663], [1667], [1671], [1675], [1678], [2303], [2304], [2305], [2306], [2308], [2309] [2018-07-21 20:02:26,683 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-07-21 20:02:26,683 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-07-21 20:02:31,915 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-07-21 20:04:35,659 WARN L571 FixpointEngine]: Received timeout, aborting fixpoint engine [2018-07-21 20:04:35,660 WARN L158 AbstractInterpreter]: Abstract interpretation run out of time [2018-07-21 20:04:35,660 INFO L419 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-07-21 20:04:35,660 INFO L297 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-07-21 20:04:35,660 INFO L189 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 20:04:35,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-07-21 20:04:35,667 INFO L282 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-07-21 20:04:35,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-21 20:04:35,748 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-07-21 20:04:35,749 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-07-21 20:04:35,949 WARN L512 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-07-21 20:04:35,950 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-21 20:04:35,953 WARN L202 ceAbstractionStarter]: Timeout [2018-07-21 20:04:35,953 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:04:35 BoogieIcfgContainer [2018-07-21 20:04:35,954 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-21 20:04:35,955 INFO L168 Benchmark]: Toolchain (without parser) took 234792.22 ms. Allocated memory was 305.1 MB in the beginning and 2.5 GB in the end (delta: 2.2 GB). Free memory was 241.8 MB in the beginning and 1.5 GB in the end (delta: -1.3 GB). Peak memory consumption was 976.0 MB. Max. memory is 5.3 GB. [2018-07-21 20:04:35,955 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 305.1 MB. Free memory is still 270.6 MB. There was no memory consumed. Max. memory is 5.3 GB. [2018-07-21 20:04:35,956 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1932.47 ms. Allocated memory was 305.1 MB in the beginning and 335.0 MB in the end (delta: 29.9 MB). Free memory was 240.8 MB in the beginning and 167.3 MB in the end (delta: 73.5 MB). Peak memory consumption was 103.4 MB. Max. memory is 5.3 GB. [2018-07-21 20:04:35,956 INFO L168 Benchmark]: Boogie Procedure Inliner took 375.98 ms. Allocated memory was 335.0 MB in the beginning and 404.8 MB in the end (delta: 69.7 MB). Free memory was 167.3 MB in the beginning and 294.8 MB in the end (delta: -127.5 MB). Peak memory consumption was 24.3 MB. Max. memory is 5.3 GB. [2018-07-21 20:04:35,957 INFO L168 Benchmark]: Boogie Preprocessor took 901.81 ms. Allocated memory was 404.8 MB in the beginning and 564.1 MB in the end (delta: 159.4 MB). Free memory was 294.8 MB in the beginning and 464.4 MB in the end (delta: -169.7 MB). Peak memory consumption was 33.3 MB. Max. memory is 5.3 GB. [2018-07-21 20:04:35,957 INFO L168 Benchmark]: RCFGBuilder took 10277.81 ms. Allocated memory was 564.1 MB in the beginning and 667.4 MB in the end (delta: 103.3 MB). Free memory was 464.4 MB in the beginning and 444.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 202.2 MB. Max. memory is 5.3 GB. [2018-07-21 20:04:35,958 INFO L168 Benchmark]: TraceAbstraction took 221289.22 ms. Allocated memory was 667.4 MB in the beginning and 2.5 GB in the end (delta: 1.9 GB). Free memory was 444.0 MB in the beginning and 1.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 815.9 MB. Max. memory is 5.3 GB. [2018-07-21 20:04:35,962 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 305.1 MB. Free memory is still 270.6 MB. There was no memory consumed. Max. memory is 5.3 GB. * CACSL2BoogieTranslator took 1932.47 ms. Allocated memory was 305.1 MB in the beginning and 335.0 MB in the end (delta: 29.9 MB). Free memory was 240.8 MB in the beginning and 167.3 MB in the end (delta: 73.5 MB). Peak memory consumption was 103.4 MB. Max. memory is 5.3 GB. * Boogie Procedure Inliner took 375.98 ms. Allocated memory was 335.0 MB in the beginning and 404.8 MB in the end (delta: 69.7 MB). Free memory was 167.3 MB in the beginning and 294.8 MB in the end (delta: -127.5 MB). Peak memory consumption was 24.3 MB. Max. memory is 5.3 GB. * Boogie Preprocessor took 901.81 ms. Allocated memory was 404.8 MB in the beginning and 564.1 MB in the end (delta: 159.4 MB). Free memory was 294.8 MB in the beginning and 464.4 MB in the end (delta: -169.7 MB). Peak memory consumption was 33.3 MB. Max. memory is 5.3 GB. * RCFGBuilder took 10277.81 ms. Allocated memory was 564.1 MB in the beginning and 667.4 MB in the end (delta: 103.3 MB). Free memory was 464.4 MB in the beginning and 444.0 MB in the end (delta: 20.5 MB). Peak memory consumption was 202.2 MB. Max. memory is 5.3 GB. * TraceAbstraction took 221289.22 ms. Allocated memory was 667.4 MB in the beginning and 2.5 GB in the end (delta: 1.9 GB). Free memory was 444.0 MB in the beginning and 1.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 815.9 MB. Max. memory is 5.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 113]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 113). Cancelled while BasicCegarLoop was analyzing trace of length 291 with TraceHistMax 3, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 2 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 221.2s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 37.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3787 SDtfs, 6530 SDslu, 1270 SDs, 0 SdLazy, 14108 SolverSat, 3763 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 33.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1116 GetRequests, 1073 SyntacticMatches, 9 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9931occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 174.6s AbstIntTime, 3 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 944 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 1466 NumberOfCodeBlocks, 1466 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1991 ConstructedInterpolants, 38 QuantifiedInterpolants, 1238037 SizeOfPredicates, 5 NumberOfNonLiveVariables, 1079 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 963/1042 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/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem17_label44_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-07-21_20-04-35-975.csv Written .csv to /storage/ultimate/releaseScripts/default/UAutomizer-linux/../../../releaseScripts/default/UAutomizer-linux/csv/Problem17_label44_true-unreach-call.c_svcomp-Reach-64bit-Taipan_Default.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-21_20-04-35-975.csv Completed graceful shutdown