java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ddc4263 [2018-08-08 07:14:24,089 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-08-08 07:14:24,092 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-08-08 07:14:24,104 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-08-08 07:14:24,105 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-08-08 07:14:24,106 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-08-08 07:14:24,107 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-08-08 07:14:24,109 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-08-08 07:14:24,111 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-08-08 07:14:24,112 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-08-08 07:14:24,113 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-08-08 07:14:24,113 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-08-08 07:14:24,114 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-08-08 07:14:24,115 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-08-08 07:14:24,117 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-08-08 07:14:24,117 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-08-08 07:14:24,118 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-08-08 07:14:24,120 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-08-08 07:14:24,122 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-08-08 07:14:24,124 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-08-08 07:14:24,125 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-08-08 07:14:24,126 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-08-08 07:14:24,129 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-08-08 07:14:24,138 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-08-08 07:14:24,154 INFO L110 SettingsManager]: Loading preferences was successful [2018-08-08 07:14:24,154 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-08-08 07:14:24,155 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-08-08 07:14:24,155 INFO L133 SettingsManager]: * User list type=DISABLED [2018-08-08 07:14:24,155 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-08-08 07:14:24,155 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-08-08 07:14:24,156 INFO L133 SettingsManager]: * Congruence Domain=false [2018-08-08 07:14:24,156 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-08-08 07:14:24,156 INFO L133 SettingsManager]: * Octagon Domain=false [2018-08-08 07:14:24,156 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-08-08 07:14:24,157 INFO L133 SettingsManager]: * Log string format=TERM [2018-08-08 07:14:24,157 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-08-08 07:14:24,158 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-08-08 07:14:24,158 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-08-08 07:14:24,158 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-08-08 07:14:24,158 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-08-08 07:14:24,158 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-08-08 07:14:24,159 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-08-08 07:14:24,159 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-08-08 07:14:24,159 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-08-08 07:14:24,159 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-08-08 07:14:24,159 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-08-08 07:14:24,160 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-08-08 07:14:24,160 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-08-08 07:14:24,160 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-08-08 07:14:24,160 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-08-08 07:14:24,161 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-08-08 07:14:24,161 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-08-08 07:14:24,161 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-08-08 07:14:24,161 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-08-08 07:14:24,161 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-08-08 07:14:24,162 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-08-08 07:14:24,162 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-08-08 07:14:24,162 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-08-08 07:14:24,225 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-08-08 07:14:24,243 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-08-08 07:14:24,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-08-08 07:14:24,251 INFO L271 PluginConnector]: Initializing CDTParser... [2018-08-08 07:14:24,251 INFO L276 PluginConnector]: CDTParser initialized [2018-08-08 07:14:24,252 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-08-08 07:14:24,612 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f12693982/30d98c6ec55e4035880e2f36fb5e6547/FLAG59e3f30f0 [2018-08-08 07:14:24,770 INFO L276 CDTParser]: Found 1 translation units. [2018-08-08 07:14:24,771 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-08-08 07:14:24,780 INFO L324 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f12693982/30d98c6ec55e4035880e2f36fb5e6547/FLAG59e3f30f0 [2018-08-08 07:14:24,796 INFO L332 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f12693982/30d98c6ec55e4035880e2f36fb5e6547 [2018-08-08 07:14:24,809 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-08-08 07:14:24,811 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-08-08 07:14:24,813 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-08-08 07:14:24,813 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-08-08 07:14:24,819 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-08-08 07:14:24,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 07:14:24" (1/1) ... [2018-08-08 07:14:24,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d368155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:24, skipping insertion in model container [2018-08-08 07:14:24,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.08 07:14:24" (1/1) ... [2018-08-08 07:14:25,025 INFO L179 PRDispatcher]: Starting pre-run dispatcher in SV-COMP mode [2018-08-08 07:14:25,136 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 07:14:25,168 INFO L422 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-08-08 07:14:25,215 INFO L175 PostProcessor]: Settings: Checked method=main [2018-08-08 07:14:25,254 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25 WrapperNode [2018-08-08 07:14:25,254 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-08-08 07:14:25,255 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-08-08 07:14:25,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-08-08 07:14:25,255 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-08-08 07:14:25,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-08-08 07:14:25,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-08-08 07:14:25,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-08-08 07:14:25,321 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-08-08 07:14:25,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,336 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,336 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,361 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (1/1) ... [2018-08-08 07:14:25,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-08-08 07:14:25,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-08-08 07:14:25,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-08-08 07:14:25,366 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-08-08 07:14:25,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (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 [2018-08-08 07:14:25,517 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-08-08 07:14:25,517 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-08-08 07:14:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i__parse_expression_list [2018-08-08 07:14:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i__parse_expression_list [2018-08-08 07:14:25,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-08-08 07:14:25,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-08-08 07:14:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-08-08 07:14:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-08-08 07:14:25,519 INFO L130 BoogieDeclarations]: Found specification of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i____VERIFIER_assert [2018-08-08 07:14:25,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i____VERIFIER_assert [2018-08-08 07:14:26,226 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-08-08 07:14:26,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 07:14:26 BoogieIcfgContainer [2018-08-08 07:14:26,227 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-08-08 07:14:26,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-08-08 07:14:26,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-08-08 07:14:26,233 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-08-08 07:14:26,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.08 07:14:24" (1/3) ... [2018-08-08 07:14:26,234 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b65b258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 07:14:26, skipping insertion in model container [2018-08-08 07:14:26,234 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.08 07:14:25" (2/3) ... [2018-08-08 07:14:26,235 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b65b258 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.08 07:14:26, skipping insertion in model container [2018-08-08 07:14:26,235 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.08 07:14:26" (3/3) ... [2018-08-08 07:14:26,237 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i [2018-08-08 07:14:26,247 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-08-08 07:14:26,256 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-08-08 07:14:26,323 INFO L129 ementStrategyFactory]: Using default assertion order modulation [2018-08-08 07:14:26,324 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-08-08 07:14:26,324 INFO L382 AbstractCegarLoop]: Hoare is true [2018-08-08 07:14:26,325 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-08-08 07:14:26,325 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-08-08 07:14:26,325 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-08-08 07:14:26,326 INFO L386 AbstractCegarLoop]: Difference is false [2018-08-08 07:14:26,326 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-08-08 07:14:26,326 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-08-08 07:14:26,348 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2018-08-08 07:14:26,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-08-08 07:14:26,356 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:26,357 INFO L376 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] [2018-08-08 07:14:26,358 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:26,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1031277574, now seen corresponding path program 1 times [2018-08-08 07:14:26,365 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:26,366 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 28 with the following transitions: [2018-08-08 07:14:26,369 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [32], [34], [37], [41], [67], [69], [72], [80], [84], [88], [113], [126], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-08-08 07:14:26,405 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:26,405 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:26,481 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:26,483 INFO L272 AbstractInterpreter]: Visited 7 different actions 7 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 07:14:26,516 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:26,567 INFO L232 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 96% of their original sizes. [2018-08-08 07:14:26,567 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:26,599 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:26,600 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:26,601 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-08-08 07:14:26,601 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:26,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-08 07:14:26,612 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-08 07:14:26,612 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-08 07:14:26,615 INFO L87 Difference]: Start difference. First operand 53 states. Second operand 3 states. [2018-08-08 07:14:26,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:26,677 INFO L93 Difference]: Finished difference Result 97 states and 133 transitions. [2018-08-08 07:14:26,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-08 07:14:26,679 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 27 [2018-08-08 07:14:26,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:26,688 INFO L225 Difference]: With dead ends: 97 [2018-08-08 07:14:26,688 INFO L226 Difference]: Without dead ends: 45 [2018-08-08 07:14:26,692 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-08 07:14:26,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2018-08-08 07:14:26,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2018-08-08 07:14:26,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2018-08-08 07:14:26,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 55 transitions. [2018-08-08 07:14:26,732 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 55 transitions. Word has length 27 [2018-08-08 07:14:26,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:26,733 INFO L480 AbstractCegarLoop]: Abstraction has 45 states and 55 transitions. [2018-08-08 07:14:26,733 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-08 07:14:26,733 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 55 transitions. [2018-08-08 07:14:26,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-08-08 07:14:26,735 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:26,735 INFO L376 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] [2018-08-08 07:14:26,735 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:26,736 INFO L82 PathProgramCache]: Analyzing trace with hash 157472994, now seen corresponding path program 1 times [2018-08-08 07:14:26,736 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:26,736 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 35 with the following transitions: [2018-08-08 07:14:26,737 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [17], [19], [22], [28], [34], [37], [41], [45], [47], [59], [63], [69], [72], [80], [84], [88], [113], [117], [120], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-08-08 07:14:26,739 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:26,740 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:26,747 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:26,747 INFO L272 AbstractInterpreter]: Visited 8 different actions 8 times. Never merged. Never widened. Never found a fixpoint. Largest state had 23 variables. [2018-08-08 07:14:26,763 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:26,781 INFO L232 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 90% of their original sizes. [2018-08-08 07:14:26,782 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:26,790 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:26,790 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:26,790 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-08-08 07:14:26,790 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:26,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-08-08 07:14:26,791 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-08-08 07:14:26,792 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-08 07:14:26,792 INFO L87 Difference]: Start difference. First operand 45 states and 55 transitions. Second operand 3 states. [2018-08-08 07:14:26,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:26,848 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2018-08-08 07:14:26,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-08-08 07:14:26,848 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 34 [2018-08-08 07:14:26,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:26,850 INFO L225 Difference]: With dead ends: 84 [2018-08-08 07:14:26,850 INFO L226 Difference]: Without dead ends: 48 [2018-08-08 07:14:26,852 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 33 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-08-08 07:14:26,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-08-08 07:14:26,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 47. [2018-08-08 07:14:26,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-08-08 07:14:26,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 57 transitions. [2018-08-08 07:14:26,860 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 57 transitions. Word has length 34 [2018-08-08 07:14:26,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:26,861 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 57 transitions. [2018-08-08 07:14:26,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-08-08 07:14:26,861 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 57 transitions. [2018-08-08 07:14:26,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-08-08 07:14:26,862 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:26,863 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 07:14:26,863 INFO L423 AbstractCegarLoop]: === Iteration 3 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:26,863 INFO L82 PathProgramCache]: Analyzing trace with hash -116110469, now seen corresponding path program 1 times [2018-08-08 07:14:26,863 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:26,864 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-08-08 07:14:26,864 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [17], [19], [22], [28], [34], [37], [41], [45], [47], [59], [63], [69], [72], [80], [84], [88], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-08-08 07:14:26,867 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:26,867 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:26,935 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:26,935 INFO L272 AbstractInterpreter]: Visited 20 different actions 40 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 51 variables. [2018-08-08 07:14:26,957 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:27,022 INFO L232 lantSequenceWeakener]: Weakened 19 states. On average, predicates are now at 79.79% of their original sizes. [2018-08-08 07:14:27,022 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:27,359 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:27,360 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:27,360 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-08-08 07:14:27,360 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:27,363 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-08-08 07:14:27,363 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-08-08 07:14:27,364 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-08-08 07:14:27,365 INFO L87 Difference]: Start difference. First operand 47 states and 57 transitions. Second operand 9 states. [2018-08-08 07:14:28,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:28,021 INFO L93 Difference]: Finished difference Result 107 states and 137 transitions. [2018-08-08 07:14:28,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-08-08 07:14:28,022 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2018-08-08 07:14:28,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:28,027 INFO L225 Difference]: With dead ends: 107 [2018-08-08 07:14:28,027 INFO L226 Difference]: Without dead ends: 75 [2018-08-08 07:14:28,028 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-08-08 07:14:28,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-08-08 07:14:28,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 53. [2018-08-08 07:14:28,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2018-08-08 07:14:28,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 65 transitions. [2018-08-08 07:14:28,053 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 65 transitions. Word has length 37 [2018-08-08 07:14:28,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:28,054 INFO L480 AbstractCegarLoop]: Abstraction has 53 states and 65 transitions. [2018-08-08 07:14:28,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-08-08 07:14:28,054 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 65 transitions. [2018-08-08 07:14:28,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-08-08 07:14:28,055 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:28,055 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 07:14:28,056 INFO L423 AbstractCegarLoop]: === Iteration 4 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:28,056 INFO L82 PathProgramCache]: Analyzing trace with hash -2110255175, now seen corresponding path program 1 times [2018-08-08 07:14:28,056 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:28,057 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-08-08 07:14:28,057 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [17], [19], [24], [28], [34], [37], [41], [45], [47], [59], [63], [69], [72], [80], [84], [88], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-08-08 07:14:28,059 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:28,060 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:28,108 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:28,109 INFO L272 AbstractInterpreter]: Visited 31 different actions 51 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 51 variables. [2018-08-08 07:14:28,118 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:28,182 INFO L232 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 76.15% of their original sizes. [2018-08-08 07:14:28,183 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:28,570 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:28,571 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:28,571 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 07:14:28,571 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:28,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 07:14:28,572 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 07:14:28,572 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-08-08 07:14:28,572 INFO L87 Difference]: Start difference. First operand 53 states and 65 transitions. Second operand 11 states. [2018-08-08 07:14:29,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:29,677 INFO L93 Difference]: Finished difference Result 131 states and 168 transitions. [2018-08-08 07:14:29,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-08-08 07:14:29,678 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2018-08-08 07:14:29,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:29,680 INFO L225 Difference]: With dead ends: 131 [2018-08-08 07:14:29,680 INFO L226 Difference]: Without dead ends: 98 [2018-08-08 07:14:29,682 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2018-08-08 07:14:29,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2018-08-08 07:14:29,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 70. [2018-08-08 07:14:29,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-08-08 07:14:29,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 88 transitions. [2018-08-08 07:14:29,695 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 88 transitions. Word has length 37 [2018-08-08 07:14:29,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:29,696 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 88 transitions. [2018-08-08 07:14:29,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 07:14:29,696 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 88 transitions. [2018-08-08 07:14:29,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-08-08 07:14:29,697 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:29,698 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 07:14:29,698 INFO L423 AbstractCegarLoop]: === Iteration 5 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:29,698 INFO L82 PathProgramCache]: Analyzing trace with hash 409704759, now seen corresponding path program 1 times [2018-08-08 07:14:29,699 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:29,699 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-08-08 07:14:29,699 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [17], [19], [24], [28], [34], [37], [41], [45], [47], [59], [63], [69], [72], [78], [84], [88], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-08-08 07:14:29,702 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:29,702 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:29,751 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:29,752 INFO L272 AbstractInterpreter]: Visited 31 different actions 51 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 52 variables. [2018-08-08 07:14:29,790 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:29,838 INFO L232 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 76.15% of their original sizes. [2018-08-08 07:14:29,839 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:30,244 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:30,245 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:30,245 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-08-08 07:14:30,245 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:30,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-08-08 07:14:30,246 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-08-08 07:14:30,246 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2018-08-08 07:14:30,246 INFO L87 Difference]: Start difference. First operand 70 states and 88 transitions. Second operand 12 states. [2018-08-08 07:14:30,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:30,873 INFO L93 Difference]: Finished difference Result 126 states and 159 transitions. [2018-08-08 07:14:30,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-08-08 07:14:30,879 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 37 [2018-08-08 07:14:30,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:30,880 INFO L225 Difference]: With dead ends: 126 [2018-08-08 07:14:30,881 INFO L226 Difference]: Without dead ends: 85 [2018-08-08 07:14:30,882 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 42 GetRequests, 24 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2018-08-08 07:14:30,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2018-08-08 07:14:30,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 62. [2018-08-08 07:14:30,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2018-08-08 07:14:30,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 77 transitions. [2018-08-08 07:14:30,892 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 77 transitions. Word has length 37 [2018-08-08 07:14:30,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:30,892 INFO L480 AbstractCegarLoop]: Abstraction has 62 states and 77 transitions. [2018-08-08 07:14:30,893 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-08-08 07:14:30,893 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 77 transitions. [2018-08-08 07:14:30,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-08-08 07:14:30,894 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:30,894 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 07:14:30,895 INFO L423 AbstractCegarLoop]: === Iteration 6 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:30,895 INFO L82 PathProgramCache]: Analyzing trace with hash 904848443, now seen corresponding path program 1 times [2018-08-08 07:14:30,895 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:30,895 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-08-08 07:14:30,896 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [17], [19], [24], [28], [34], [39], [41], [45], [47], [59], [63], [69], [72], [80], [84], [88], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-08-08 07:14:30,897 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:30,898 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:30,931 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:30,932 INFO L272 AbstractInterpreter]: Visited 31 different actions 51 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 50 variables. [2018-08-08 07:14:30,974 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:31,031 INFO L232 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 76.15% of their original sizes. [2018-08-08 07:14:31,032 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:31,188 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:31,188 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:31,188 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 07:14:31,189 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:31,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 07:14:31,190 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 07:14:31,190 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2018-08-08 07:14:31,190 INFO L87 Difference]: Start difference. First operand 62 states and 77 transitions. Second operand 10 states. [2018-08-08 07:14:31,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:31,795 INFO L93 Difference]: Finished difference Result 124 states and 157 transitions. [2018-08-08 07:14:31,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-08-08 07:14:31,795 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2018-08-08 07:14:31,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:31,798 INFO L225 Difference]: With dead ends: 124 [2018-08-08 07:14:31,798 INFO L226 Difference]: Without dead ends: 91 [2018-08-08 07:14:31,800 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 41 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-08-08 07:14:31,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-08-08 07:14:31,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 70. [2018-08-08 07:14:31,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2018-08-08 07:14:31,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 86 transitions. [2018-08-08 07:14:31,811 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 86 transitions. Word has length 37 [2018-08-08 07:14:31,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:31,811 INFO L480 AbstractCegarLoop]: Abstraction has 70 states and 86 transitions. [2018-08-08 07:14:31,811 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-08-08 07:14:31,812 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 86 transitions. [2018-08-08 07:14:31,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2018-08-08 07:14:31,813 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:31,813 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 07:14:31,813 INFO L423 AbstractCegarLoop]: === Iteration 7 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:31,814 INFO L82 PathProgramCache]: Analyzing trace with hash -870158919, now seen corresponding path program 1 times [2018-08-08 07:14:31,814 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:31,814 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 38 with the following transitions: [2018-08-08 07:14:31,814 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [17], [19], [24], [28], [34], [39], [41], [45], [47], [59], [63], [69], [72], [78], [84], [88], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-08-08 07:14:31,816 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:31,816 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:31,847 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:31,847 INFO L272 AbstractInterpreter]: Visited 31 different actions 51 times. Merged at 3 different actions 15 times. Widened at 1 different actions 1 times. Found 1 fixpoints after 1 different actions. Largest state had 51 variables. [2018-08-08 07:14:31,863 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:31,897 INFO L232 lantSequenceWeakener]: Weakened 30 states. On average, predicates are now at 76.15% of their original sizes. [2018-08-08 07:14:31,898 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:32,094 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:32,095 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:32,095 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-08-08 07:14:32,095 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:32,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-08-08 07:14:32,096 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-08-08 07:14:32,097 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2018-08-08 07:14:32,097 INFO L87 Difference]: Start difference. First operand 70 states and 86 transitions. Second operand 11 states. [2018-08-08 07:14:32,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:32,651 INFO L93 Difference]: Finished difference Result 119 states and 148 transitions. [2018-08-08 07:14:32,652 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-08-08 07:14:32,652 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2018-08-08 07:14:32,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:32,653 INFO L225 Difference]: With dead ends: 119 [2018-08-08 07:14:32,653 INFO L226 Difference]: Without dead ends: 76 [2018-08-08 07:14:32,654 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-08-08 07:14:32,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-08-08 07:14:32,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 59. [2018-08-08 07:14:32,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2018-08-08 07:14:32,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 73 transitions. [2018-08-08 07:14:32,664 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 73 transitions. Word has length 37 [2018-08-08 07:14:32,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:32,665 INFO L480 AbstractCegarLoop]: Abstraction has 59 states and 73 transitions. [2018-08-08 07:14:32,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-08-08 07:14:32,665 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 73 transitions. [2018-08-08 07:14:32,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-08-08 07:14:32,669 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:32,669 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 07:14:32,669 INFO L423 AbstractCegarLoop]: === Iteration 8 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:32,669 INFO L82 PathProgramCache]: Analyzing trace with hash -375876763, now seen corresponding path program 1 times [2018-08-08 07:14:32,670 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:32,670 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-08-08 07:14:32,670 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [17], [19], [22], [28], [30], [34], [37], [41], [45], [47], [59], [63], [69], [72], [80], [84], [88], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-08-08 07:14:32,675 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:32,675 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:32,717 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:32,717 INFO L272 AbstractInterpreter]: Visited 21 different actions 86 times. Merged at 7 different actions 51 times. Widened at 2 different actions 6 times. Found 2 fixpoints after 2 different actions. Largest state had 52 variables. [2018-08-08 07:14:32,753 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:32,786 INFO L232 lantSequenceWeakener]: Weakened 23 states. On average, predicates are now at 78.92% of their original sizes. [2018-08-08 07:14:32,786 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:32,866 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:32,866 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:32,866 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 07:14:32,866 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:32,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 07:14:32,867 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 07:14:32,868 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-08-08 07:14:32,868 INFO L87 Difference]: Start difference. First operand 59 states and 73 transitions. Second operand 10 states. [2018-08-08 07:14:33,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:33,125 INFO L93 Difference]: Finished difference Result 125 states and 159 transitions. [2018-08-08 07:14:33,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-08-08 07:14:33,126 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 41 [2018-08-08 07:14:33,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:33,128 INFO L225 Difference]: With dead ends: 125 [2018-08-08 07:14:33,128 INFO L226 Difference]: Without dead ends: 91 [2018-08-08 07:14:33,129 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-08-08 07:14:33,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2018-08-08 07:14:33,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 64. [2018-08-08 07:14:33,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2018-08-08 07:14:33,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 80 transitions. [2018-08-08 07:14:33,136 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 80 transitions. Word has length 41 [2018-08-08 07:14:33,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:33,137 INFO L480 AbstractCegarLoop]: Abstraction has 64 states and 80 transitions. [2018-08-08 07:14:33,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-08-08 07:14:33,137 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 80 transitions. [2018-08-08 07:14:33,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-08-08 07:14:33,138 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:33,138 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 07:14:33,139 INFO L423 AbstractCegarLoop]: === Iteration 9 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:33,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1924945827, now seen corresponding path program 1 times [2018-08-08 07:14:33,139 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:33,139 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-08-08 07:14:33,139 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [17], [19], [22], [24], [28], [30], [34], [37], [41], [45], [47], [59], [63], [69], [72], [80], [84], [88], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-08-08 07:14:33,141 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:33,142 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:33,221 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:33,221 INFO L272 AbstractInterpreter]: Visited 33 different actions 243 times. Merged at 19 different actions 177 times. Widened at 3 different actions 11 times. Found 20 fixpoints after 4 different actions. Largest state had 52 variables. [2018-08-08 07:14:33,261 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:33,292 INFO L232 lantSequenceWeakener]: Weakened 34 states. On average, predicates are now at 77.24% of their original sizes. [2018-08-08 07:14:33,292 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:33,440 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:33,441 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:33,441 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-08-08 07:14:33,441 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:33,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-08-08 07:14:33,442 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-08-08 07:14:33,442 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-08-08 07:14:33,443 INFO L87 Difference]: Start difference. First operand 64 states and 80 transitions. Second operand 12 states. [2018-08-08 07:14:33,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:33,839 INFO L93 Difference]: Finished difference Result 120 states and 151 transitions. [2018-08-08 07:14:33,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-08-08 07:14:33,840 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 41 [2018-08-08 07:14:33,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:33,842 INFO L225 Difference]: With dead ends: 120 [2018-08-08 07:14:33,842 INFO L226 Difference]: Without dead ends: 87 [2018-08-08 07:14:33,843 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2018-08-08 07:14:33,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2018-08-08 07:14:33,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 74. [2018-08-08 07:14:33,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-08-08 07:14:33,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 92 transitions. [2018-08-08 07:14:33,864 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 92 transitions. Word has length 41 [2018-08-08 07:14:33,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:33,865 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 92 transitions. [2018-08-08 07:14:33,865 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-08-08 07:14:33,866 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 92 transitions. [2018-08-08 07:14:33,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-08-08 07:14:33,867 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:33,867 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 07:14:33,868 INFO L423 AbstractCegarLoop]: === Iteration 10 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:33,868 INFO L82 PathProgramCache]: Analyzing trace with hash 149938465, now seen corresponding path program 1 times [2018-08-08 07:14:33,868 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:33,868 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 42 with the following transitions: [2018-08-08 07:14:33,869 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [17], [19], [22], [24], [28], [30], [34], [37], [41], [45], [47], [59], [63], [69], [72], [78], [84], [88], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-08-08 07:14:33,870 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:33,871 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:33,976 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:33,977 INFO L272 AbstractInterpreter]: Visited 33 different actions 243 times. Merged at 19 different actions 177 times. Widened at 3 different actions 11 times. Found 20 fixpoints after 4 different actions. Largest state had 53 variables. [2018-08-08 07:14:33,985 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:34,011 INFO L232 lantSequenceWeakener]: Weakened 34 states. On average, predicates are now at 77.24% of their original sizes. [2018-08-08 07:14:34,011 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:34,230 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:34,230 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:34,230 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2018-08-08 07:14:34,231 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:34,231 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-08-08 07:14:34,231 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-08-08 07:14:34,231 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-08-08 07:14:34,232 INFO L87 Difference]: Start difference. First operand 74 states and 92 transitions. Second operand 13 states. [2018-08-08 07:14:34,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:34,825 INFO L93 Difference]: Finished difference Result 111 states and 138 transitions. [2018-08-08 07:14:34,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-08-08 07:14:34,826 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 41 [2018-08-08 07:14:34,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:34,827 INFO L225 Difference]: With dead ends: 111 [2018-08-08 07:14:34,827 INFO L226 Difference]: Without dead ends: 53 [2018-08-08 07:14:34,829 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 46 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2018-08-08 07:14:34,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-08-08 07:14:34,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2018-08-08 07:14:34,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2018-08-08 07:14:34,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 59 transitions. [2018-08-08 07:14:34,836 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 59 transitions. Word has length 41 [2018-08-08 07:14:34,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:34,836 INFO L480 AbstractCegarLoop]: Abstraction has 49 states and 59 transitions. [2018-08-08 07:14:34,836 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-08-08 07:14:34,836 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 59 transitions. [2018-08-08 07:14:34,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-08-08 07:14:34,837 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:34,837 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 07:14:34,838 INFO L423 AbstractCegarLoop]: === Iteration 11 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:34,838 INFO L82 PathProgramCache]: Analyzing trace with hash -1802910364, now seen corresponding path program 1 times [2018-08-08 07:14:34,838 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:34,838 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-08-08 07:14:34,839 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [17], [19], [22], [28], [34], [37], [41], [45], [47], [59], [63], [69], [72], [80], [84], [88], [95], [97], [99], [104], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-08-08 07:14:34,840 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:34,841 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:34,883 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-08-08 07:14:34,883 INFO L272 AbstractInterpreter]: Visited 24 different actions 130 times. Merged at 12 different actions 92 times. Widened at 3 different actions 10 times. Found 3 fixpoints after 3 different actions. Largest state had 52 variables. [2018-08-08 07:14:34,923 INFO L399 sIntCurrentIteration]: Generating AbsInt predicates [2018-08-08 07:14:34,940 INFO L232 lantSequenceWeakener]: Weakened 24 states. On average, predicates are now at 78.57% of their original sizes. [2018-08-08 07:14:34,940 INFO L412 sIntCurrentIteration]: Unifying AI predicates [2018-08-08 07:14:35,488 INFO L423 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-08-08 07:14:35,488 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-08-08 07:14:35,488 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-08-08 07:14:35,489 INFO L262 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-08-08 07:14:35,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-08-08 07:14:35,489 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-08-08 07:14:35,489 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-08-08 07:14:35,490 INFO L87 Difference]: Start difference. First operand 49 states and 59 transitions. Second operand 10 states. [2018-08-08 07:14:35,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-08-08 07:14:35,939 INFO L93 Difference]: Finished difference Result 108 states and 138 transitions. [2018-08-08 07:14:35,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-08-08 07:14:35,939 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 42 [2018-08-08 07:14:35,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-08-08 07:14:35,941 INFO L225 Difference]: With dead ends: 108 [2018-08-08 07:14:35,941 INFO L226 Difference]: Without dead ends: 76 [2018-08-08 07:14:35,942 INFO L603 BasicCegarLoop]: 2 DeclaredPredicates, 44 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2018-08-08 07:14:35,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-08-08 07:14:35,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 58. [2018-08-08 07:14:35,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2018-08-08 07:14:35,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 70 transitions. [2018-08-08 07:14:35,950 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 70 transitions. Word has length 42 [2018-08-08 07:14:35,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-08-08 07:14:35,950 INFO L480 AbstractCegarLoop]: Abstraction has 58 states and 70 transitions. [2018-08-08 07:14:35,950 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-08-08 07:14:35,951 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 70 transitions. [2018-08-08 07:14:35,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2018-08-08 07:14:35,951 INFO L368 BasicCegarLoop]: Found error trace [2018-08-08 07:14:35,952 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-08-08 07:14:35,952 INFO L423 AbstractCegarLoop]: === Iteration 12 === [__U_MULTI_f_storage_repos_ultimate_trunk_examples_svcomp_loops_veris_c_OpenSER__cases__stripFullBoth_arr_true_unreach_call_true_termination_i____VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-08-08 07:14:35,952 INFO L82 PathProgramCache]: Analyzing trace with hash 497912226, now seen corresponding path program 1 times [2018-08-08 07:14:35,952 INFO L69 tionRefinementEngine]: Using refinement strategy ToothlessTaipanRefinementStrategy [2018-08-08 07:14:35,952 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 43 with the following transitions: [2018-08-08 07:14:35,953 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [13], [17], [19], [24], [28], [34], [37], [41], [45], [47], [59], [63], [69], [72], [80], [84], [88], [95], [97], [99], [104], [113], [117], [120], [122], [124], [128], [132], [135], [137], [143], [145], [146], [147], [149] [2018-08-08 07:14:35,954 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2018-08-08 07:14:35,954 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2018-08-08 07:14:36,029 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-08-08 07:14:36,030 INFO L272 AbstractInterpreter]: Visited 40 different actions 264 times. Merged at 25 different actions 192 times. Widened at 4 different actions 14 times. Found 3 fixpoints after 3 different actions. Largest state had 52 variables. [2018-08-08 07:14:36,068 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-08-08 07:14:36,090 WARN L205 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2018-08-08 07:14:36,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.08 07:14:36 BoogieIcfgContainer [2018-08-08 07:14:36,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-08-08 07:14:36,092 INFO L168 Benchmark]: Toolchain (without parser) took 11281.63 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 878.2 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -837.6 MB). Peak memory consumption was 40.6 MB. Max. memory is 7.1 GB. [2018-08-08 07:14:36,094 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-08-08 07:14:36,094 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-08-08 07:14:36,095 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.19 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. [2018-08-08 07:14:36,097 INFO L168 Benchmark]: Boogie Preprocessor took 44.50 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. [2018-08-08 07:14:36,097 INFO L168 Benchmark]: RCFGBuilder took 861.74 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -761.0 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. [2018-08-08 07:14:36,098 INFO L168 Benchmark]: TraceAbstraction took 9862.93 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 149.4 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -87.2 MB). Peak memory consumption was 62.2 MB. Max. memory is 7.1 GB. [2018-08-08 07:14:36,104 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 441.79 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 65.19 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. * Boogie Preprocessor took 44.50 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. * RCFGBuilder took 861.74 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 728.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -761.0 MB). Peak memory consumption was 16.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9862.93 ms. Allocated memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: 149.4 MB). Free memory was 2.2 GB in the beginning and 2.3 GB in the end (delta: -87.2 MB). Peak memory consumption was 62.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L79] CALL char A [2 + 2 + 4 +1]; [L79] RET char A [2 + 2 + 4 +1]; [L81] int i = 0; [L81] COND TRUE i < 2 + 2 + 4 [L82] CALL A[i] = __VERIFIER_nondet_char() [L82] RET A[i] = __VERIFIER_nondet_char() [L81] i++ [L81] i++ [L81] COND FALSE !(i < 2 + 2 + 4) [L85] CALL A[2 + 2 + 4] = 0 [L85] RET A[2 + 2 + 4] = 0 [L86] CALL parse_expression_list (A) [L50] int start=0, i=-1, j=-1; [L50] int start=0, i=-1, j=-1; [L50] int start=0, i=-1, j=-1; [L51] CALL char str2[2]; [L51] RET char str2[2]; [L52] COND FALSE !(!str) [L54] i++ [L54] i++ [L55] CALL str[i] [L55] RET str[i] [L56] case 0: [L56] COND FALSE !(case 0:) [L74] CALL, EXPR str[i] [L74] RET, EXPR str[i] [L74] COND TRUE str[i] != 0 [L54] i++ [L54] i++ [L55] CALL str[i] [L55] RET str[i] [L56] case 0: [L56] COND TRUE case 0: [L57] CALL, EXPR str[start] [L57] RET, EXPR str[start] [L57] (str[start] == ' ') || (str[start] == '\t') [L57] COND FALSE !((str[start] == ' ') || (str[start] == '\t')) [L57] CALL, EXPR str[start] [L57] RET, EXPR str[start] [L57] (str[start] == ' ') || (str[start] == '\t') [L57] COND FALSE !((str[start] == ' ') || (str[start] == '\t')) [L58] CALL, EXPR str[start] [L58] RET, EXPR str[start] [L58] COND TRUE str[start] == '"' [L58] start++ [L58] start++ [L59] j = i-1 [L60] (0 < j) && ((str[j] == ' ') || (str[j] == '\t')) [L60] COND FALSE !((0 < j) && ((str[j] == ' ') || (str[j] == '\t'))) [L60] COND FALSE !((0 < j) && ((str[j] == ' ') || (str[j] == '\t'))) [L61] (0 < j) && (str[j] == '"') [L61] COND TRUE (0 < j) && (str[j] == '"') [L61] CALL, EXPR str[j] [L61] RET, EXPR str[j] [L61] (0 < j) && (str[j] == '"') [L61] COND FALSE !((0 < j) && (str[j] == '"')) [L62] COND TRUE start<=j [L63] COND FALSE !(j-start+1>=2) [L66] FCALL r_strncpy(str2, str+start, j-start+1) [L67] CALL __VERIFIER_assert(j - start + 1 < 2) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 53 locations, 1 error locations. UNKNOWN Result, 9.7s OverallTime, 12 OverallIterations, 2 TraceHistogramMax, 5.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 493 SDtfs, 1017 SDslu, 2184 SDs, 0 SdLazy, 1769 SolverSat, 160 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 22 DeclaredPredicates, 443 GetRequests, 310 SyntacticMatches, 8 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.0s AbstIntTime, 12 AbstIntIterations, 11 AbstIntStrong, 0.8059305422926751 AbsIntWeakeningRatio, 2.2925 AbsIntAvgWeakeningVarsNumRemoved, 2.9675 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 11 MinimizatonAttempts, 174 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-08-08_07-14-36-128.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/veris.c_OpenSER__cases1_stripFullBoth_arr_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-08-08_07-14-36-128.csv Received shutdown request...