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-industry-pattern/aiob_4.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:03:44,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:03:44,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:03:44,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-16 17:03:44,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:03:44,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:03:44,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:03:44,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:03:44,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:03:44,205 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:03:44,207 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:03:44,209 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:03:44,211 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:03:44,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:03:44,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:03:44,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:03:44,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-16 17:03:44,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:03:44,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:03:44,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:03:44,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:03:44,224 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:03:44,224 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:03:44,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:03:44,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:03:44,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:03:44,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:03:44,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:03:44,227 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 [2019-09-16 17:03:44,258 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:03:44,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:03:44,258 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:03:44,259 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:03:44,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:03:44,260 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:03:44,260 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:03:44,260 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:03:44,262 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:03:44,262 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:03:44,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:03:44,263 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:03:44,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:03:44,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:03:44,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:03:44,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:03:44,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:03:44,265 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:03:44,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:03:44,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:03:44,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:03:44,266 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:03:44,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:03:44,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:03:44,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:03:44,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:03:44,267 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:03:44,267 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:03:44,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:03:44,267 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:03:44,318 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:03:44,334 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:03:44,339 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:03:44,342 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:03:44,343 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:03:44,344 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c [2019-09-16 17:03:44,410 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecca95e2f/183eaae073ed4c018ebaf3e97dcade17/FLAG8ae73508d [2019-09-16 17:03:44,967 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:03:44,968 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+nlh-reducer.c [2019-09-16 17:03:44,982 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecca95e2f/183eaae073ed4c018ebaf3e97dcade17/FLAG8ae73508d [2019-09-16 17:03:45,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecca95e2f/183eaae073ed4c018ebaf3e97dcade17 [2019-09-16 17:03:45,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:03:45,251 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:03:45,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:03:45,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:03:45,256 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:03:45,257 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:03:45" (1/1) ... [2019-09-16 17:03:45,260 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6128b3af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:45, skipping insertion in model container [2019-09-16 17:03:45,260 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:03:45" (1/1) ... [2019-09-16 17:03:45,267 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:03:45,331 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:03:45,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:03:45,891 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:03:46,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:03:46,121 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:03:46,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:46 WrapperNode [2019-09-16 17:03:46,122 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:03:46,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:03:46,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:03:46,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:03:46,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:46" (1/1) ... [2019-09-16 17:03:46,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:46" (1/1) ... [2019-09-16 17:03:46,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:46" (1/1) ... [2019-09-16 17:03:46,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:46" (1/1) ... [2019-09-16 17:03:46,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:46" (1/1) ... [2019-09-16 17:03:46,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:46" (1/1) ... [2019-09-16 17:03:46,303 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:46" (1/1) ... [2019-09-16 17:03:46,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:03:46,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:03:46,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:03:46,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:03:46,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:46" (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 [2019-09-16 17:03:46,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:03:46,392 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:03:46,392 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:03:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:03:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2019-09-16 17:03:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-09-16 17:03:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:03:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-16 17:03:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:03:46,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:03:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:03:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:03:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:03:46,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:03:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:03:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:03:46,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:03:48,283 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:03:48,284 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-16 17:03:48,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:03:48 BoogieIcfgContainer [2019-09-16 17:03:48,285 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:03:48,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:03:48,287 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:03:48,290 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:03:48,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:03:45" (1/3) ... [2019-09-16 17:03:48,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abd90c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:03:48, skipping insertion in model container [2019-09-16 17:03:48,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:03:46" (2/3) ... [2019-09-16 17:03:48,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abd90c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:03:48, skipping insertion in model container [2019-09-16 17:03:48,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:03:48" (3/3) ... [2019-09-16 17:03:48,293 INFO L109 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+nlh-reducer.c [2019-09-16 17:03:48,303 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:03:48,312 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:03:48,329 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:03:48,357 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:03:48,358 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:03:48,358 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:03:48,358 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:03:48,358 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:03:48,358 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:03:48,359 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:03:48,359 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:03:48,379 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states. [2019-09-16 17:03:48,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2019-09-16 17:03:48,398 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:03:48,399 INFO L407 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-16 17:03:48,402 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:03:48,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:03:48,408 INFO L82 PathProgramCache]: Analyzing trace with hash -745324545, now seen corresponding path program 1 times [2019-09-16 17:03:48,411 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:03:48,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:48,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:03:48,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:03:48,473 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:03:50,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:03:55,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:03:55,158 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:03:55,158 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [68] imperfect sequences [] total 68 [2019-09-16 17:03:55,159 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:03:55,164 INFO L454 AbstractCegarLoop]: Interpolant automaton has 68 states [2019-09-16 17:03:55,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2019-09-16 17:03:55,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=156, Invalid=4400, Unknown=0, NotChecked=0, Total=4556 [2019-09-16 17:03:55,185 INFO L87 Difference]: Start difference. First operand 184 states. Second operand 68 states. [2019-09-16 17:04:40,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:04:40,328 INFO L93 Difference]: Finished difference Result 179 states and 281 transitions. [2019-09-16 17:04:40,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-09-16 17:04:40,330 INFO L78 Accepts]: Start accepts. Automaton has 68 states. Word has length 179 [2019-09-16 17:04:40,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:04:40,338 INFO L225 Difference]: With dead ends: 179 [2019-09-16 17:04:40,339 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:04:40,342 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=161, Invalid=4531, Unknown=0, NotChecked=0, Total=4692 [2019-09-16 17:04:40,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:04:40,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:04:40,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:04:40,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:04:40,368 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 179 [2019-09-16 17:04:40,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:04:40,369 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:04:40,369 INFO L476 AbstractCegarLoop]: Interpolant automaton has 68 states. [2019-09-16 17:04:40,369 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:04:40,369 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:04:40,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:04:40 BoogieIcfgContainer [2019-09-16 17:04:40,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:04:40,378 INFO L168 Benchmark]: Toolchain (without parser) took 55125.16 ms. Allocated memory was 131.6 MB in the beginning and 524.8 MB in the end (delta: 393.2 MB). Free memory was 86.4 MB in the beginning and 103.0 MB in the end (delta: -16.6 MB). Peak memory consumption was 376.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:04:40,379 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 131.6 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:04:40,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 869.83 ms. Allocated memory was 131.6 MB in the beginning and 199.2 MB in the end (delta: 67.6 MB). Free memory was 86.2 MB in the beginning and 152.2 MB in the end (delta: -66.0 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2019-09-16 17:04:40,381 INFO L168 Benchmark]: Boogie Preprocessor took 194.19 ms. Allocated memory is still 199.2 MB. Free memory was 152.2 MB in the beginning and 139.8 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. [2019-09-16 17:04:40,382 INFO L168 Benchmark]: RCFGBuilder took 1968.63 ms. Allocated memory was 199.2 MB in the beginning and 269.0 MB in the end (delta: 69.7 MB). Free memory was 139.8 MB in the beginning and 172.3 MB in the end (delta: -32.5 MB). Peak memory consumption was 101.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:04:40,383 INFO L168 Benchmark]: TraceAbstraction took 52088.45 ms. Allocated memory was 269.0 MB in the beginning and 524.8 MB in the end (delta: 255.9 MB). Free memory was 170.0 MB in the beginning and 103.0 MB in the end (delta: 67.0 MB). Peak memory consumption was 322.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:04:40,387 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 131.6 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 869.83 ms. Allocated memory was 131.6 MB in the beginning and 199.2 MB in the end (delta: 67.6 MB). Free memory was 86.2 MB in the beginning and 152.2 MB in the end (delta: -66.0 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 194.19 ms. Allocated memory is still 199.2 MB. Free memory was 152.2 MB in the beginning and 139.8 MB in the end (delta: 12.3 MB). Peak memory consumption was 12.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1968.63 ms. Allocated memory was 199.2 MB in the beginning and 269.0 MB in the end (delta: 69.7 MB). Free memory was 139.8 MB in the beginning and 172.3 MB in the end (delta: -32.5 MB). Peak memory consumption was 101.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 52088.45 ms. Allocated memory was 269.0 MB in the beginning and 524.8 MB in the end (delta: 255.9 MB). Free memory was 170.0 MB in the beginning and 103.0 MB in the end (delta: 67.0 MB). Peak memory consumption was 322.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 1285]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 184 locations, 1 error locations. SAFE Result, 52.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 45.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 49 SDtfs, 70 SDslu, 2145 SDs, 0 SdLazy, 16095 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 41.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=184occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.9s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 525278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...