java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:04:42,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:04:42,470 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:04:42,488 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 02:04:42,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:04:42,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:04:42,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:04:42,540 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:04:42,554 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:04:42,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:04:42,555 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:04:42,555 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:04:42,556 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:04:42,556 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:04:42,556 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:04:42,556 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:04:42,556 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:04:42,557 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:04:42,557 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:04:42,558 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:04:42,558 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:04:42,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:04:42,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:04:42,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:04:42,559 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:04:42,559 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:04:42,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:04:42,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:04:42,560 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:04:42,560 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:04:42,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:04:42,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:04:42,561 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:04:42,561 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:04:42,561 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:04:42,561 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:04:42,561 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:04:42,562 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:04:42,593 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:04:42,611 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:04:42,614 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:04:42,617 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:04:42,617 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:04:42,618 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2019-09-10 02:04:42,690 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8d3dcbb0/c08ff3d6d0c8441eb57bd00cbb42629b/FLAGc886b8eac [2019-09-10 02:04:43,264 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:04:43,266 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i.p+sep-reducer.c [2019-09-10 02:04:43,283 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8d3dcbb0/c08ff3d6d0c8441eb57bd00cbb42629b/FLAGc886b8eac [2019-09-10 02:04:43,531 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8d3dcbb0/c08ff3d6d0c8441eb57bd00cbb42629b [2019-09-10 02:04:43,540 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:04:43,541 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:04:43,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:04:43,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:04:43,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:04:43,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:04:43" (1/1) ... [2019-09-10 02:04:43,550 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@559975aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:43, skipping insertion in model container [2019-09-10 02:04:43,550 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:04:43" (1/1) ... [2019-09-10 02:04:43,557 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:04:43,630 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:04:44,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:04:44,169 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:04:44,399 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:04:44,417 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:04:44,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:44 WrapperNode [2019-09-10 02:04:44,418 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:04:44,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:04:44,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:04:44,420 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:04:44,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:44" (1/1) ... [2019-09-10 02:04:44,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:44" (1/1) ... [2019-09-10 02:04:44,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:44" (1/1) ... [2019-09-10 02:04:44,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:44" (1/1) ... [2019-09-10 02:04:44,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:44" (1/1) ... [2019-09-10 02:04:44,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:44" (1/1) ... [2019-09-10 02:04:44,522 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:44" (1/1) ... [2019-09-10 02:04:44,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:04:44,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:04:44,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:04:44,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:04:44,533 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:44" (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 [2019-09-10 02:04:44,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:04:44,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:04:44,616 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:04:44,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:04:44,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 02:04:44,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 02:04:44,616 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:04:44,616 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:04:44,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:04:44,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:04:46,101 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:04:46,102 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 02:04:46,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:04:46 BoogieIcfgContainer [2019-09-10 02:04:46,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:04:46,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:04:46,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:04:46,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:04:46,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:04:43" (1/3) ... [2019-09-10 02:04:46,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d345035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:04:46, skipping insertion in model container [2019-09-10 02:04:46,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:04:44" (2/3) ... [2019-09-10 02:04:46,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d345035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:04:46, skipping insertion in model container [2019-09-10 02:04:46,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:04:46" (3/3) ... [2019-09-10 02:04:46,113 INFO L109 eAbstractionObserver]: Analyzing ICFG id_build.i.p+sep-reducer.c [2019-09-10 02:04:46,123 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:04:46,131 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-09-10 02:04:46,151 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-09-10 02:04:46,200 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:04:46,200 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:04:46,201 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:04:46,201 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:04:46,201 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:04:46,202 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:04:46,202 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:04:46,202 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:04:46,239 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states. [2019-09-10 02:04:46,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-09-10 02:04:46,261 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:04:46,262 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:04:46,264 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:04:46,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:04:46,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1633347547, now seen corresponding path program 1 times [2019-09-10 02:04:46,271 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:04:46,313 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:04:46,313 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:04:46,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:04:46,314 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:04:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:04:46,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:04:46,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:04:46,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:04:46,814 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:04:46,821 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:04:46,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:04:46,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:04:46,839 INFO L87 Difference]: Start difference. First operand 252 states. Second operand 5 states. [2019-09-10 02:04:47,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:04:47,642 INFO L93 Difference]: Finished difference Result 261 states and 495 transitions. [2019-09-10 02:04:47,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:04:47,647 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 138 [2019-09-10 02:04:47,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:04:47,670 INFO L225 Difference]: With dead ends: 261 [2019-09-10 02:04:47,670 INFO L226 Difference]: Without dead ends: 253 [2019-09-10 02:04:47,673 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 02:04:47,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2019-09-10 02:04:47,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 246. [2019-09-10 02:04:47,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-09-10 02:04:47,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 283 transitions. [2019-09-10 02:04:47,764 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 283 transitions. Word has length 138 [2019-09-10 02:04:47,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:04:47,766 INFO L475 AbstractCegarLoop]: Abstraction has 246 states and 283 transitions. [2019-09-10 02:04:47,766 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:04:47,766 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 283 transitions. [2019-09-10 02:04:47,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-09-10 02:04:47,769 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:04:47,770 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:04:47,770 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:04:47,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:04:47,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1070545246, now seen corresponding path program 1 times [2019-09-10 02:04:47,771 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:04:47,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:04:47,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:04:47,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:04:47,772 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:04:47,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:04:47,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:04:47,986 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:04:47,986 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:04:47,986 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:04:47,988 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:04:47,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:04:47,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:04:47,989 INFO L87 Difference]: Start difference. First operand 246 states and 283 transitions. Second operand 5 states. [2019-09-10 02:04:48,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:04:48,594 INFO L93 Difference]: Finished difference Result 256 states and 296 transitions. [2019-09-10 02:04:48,594 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:04:48,594 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2019-09-10 02:04:48,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:04:48,596 INFO L225 Difference]: With dead ends: 256 [2019-09-10 02:04:48,596 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:04:48,601 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-09-10 02:04:48,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:04:48,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:04:48,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:04:48,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:04:48,603 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 139 [2019-09-10 02:04:48,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:04:48,604 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:04:48,604 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:04:48,604 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:04:48,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:04:48,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:04:48 BoogieIcfgContainer [2019-09-10 02:04:48,612 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:04:48,616 INFO L168 Benchmark]: Toolchain (without parser) took 5073.16 ms. Allocated memory was 135.3 MB in the beginning and 260.0 MB in the end (delta: 124.8 MB). Free memory was 88.7 MB in the beginning and 173.6 MB in the end (delta: -84.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 7.1 GB. [2019-09-10 02:04:48,617 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 135.3 MB. Free memory was 108.6 MB in the beginning and 108.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:04:48,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 876.15 ms. Allocated memory was 135.3 MB in the beginning and 204.5 MB in the end (delta: 69.2 MB). Free memory was 88.5 MB in the beginning and 164.2 MB in the end (delta: -75.7 MB). Peak memory consumption was 40.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:04:48,621 INFO L168 Benchmark]: Boogie Preprocessor took 113.13 ms. Allocated memory is still 204.5 MB. Free memory was 164.2 MB in the beginning and 159.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-09-10 02:04:48,622 INFO L168 Benchmark]: RCFGBuilder took 1571.61 ms. Allocated memory was 204.5 MB in the beginning and 233.3 MB in the end (delta: 28.8 MB). Free memory was 159.5 MB in the beginning and 152.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:04:48,624 INFO L168 Benchmark]: TraceAbstraction took 2508.02 ms. Allocated memory was 233.3 MB in the beginning and 260.0 MB in the end (delta: 26.7 MB). Free memory was 152.6 MB in the beginning and 173.6 MB in the end (delta: -21.0 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2019-09-10 02:04:48,633 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 135.3 MB. Free memory was 108.6 MB in the beginning and 108.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 876.15 ms. Allocated memory was 135.3 MB in the beginning and 204.5 MB in the end (delta: 69.2 MB). Free memory was 88.5 MB in the beginning and 164.2 MB in the end (delta: -75.7 MB). Peak memory consumption was 40.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.13 ms. Allocated memory is still 204.5 MB. Free memory was 164.2 MB in the beginning and 159.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1571.61 ms. Allocated memory was 204.5 MB in the beginning and 233.3 MB in the end (delta: 28.8 MB). Free memory was 159.5 MB in the beginning and 152.6 MB in the end (delta: 7.0 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2508.02 ms. Allocated memory was 233.3 MB in the beginning and 260.0 MB in the end (delta: 26.7 MB). Free memory was 152.6 MB in the beginning and 173.6 MB in the end (delta: -21.0 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1998]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 2307]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 252 locations, 2 error locations. SAFE Result, 2.4s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 379 SDtfs, 791 SDslu, 651 SDs, 0 SdLazy, 1158 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=252occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 277 NumberOfCodeBlocks, 277 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 275 ConstructedInterpolants, 0 QuantifiedInterpolants, 83140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...